The best of EcoWatch, right in your inbox. Sign up for our email newsletter!
If Factory Farm Conditions Are Unhealthy for Animals, They’re Bad for People Too
By Tia Schwab
In 2014, the Review on Antimicrobial Resistance, commissioned by the UK government and Wellcome Trust, estimated that 700,000 people around the world die each year due to drug-resistant infections. A follow-up report two years later showed no change in this estimate of casualties. Without action, that number could grow to 10 million per year by 2050. A leading cause of antibiotic resistance? The misuse and overuse of antibiotics on factory farms.
Flourishing antibiotic resistance is just one of the many public health crises produced by factory farming. Other problems include foodborne illness, flu epidemics, the fallout from poor air and water quality, and chronic disease. All of it can be traced to the current industrial approach to raising animals for food, which puts a premium on "high stocking density," wherein productivity is measured by how many animals are crammed into a feeding facility.
Oversight for the way factory farms operate and manage waste is minimal at best. No federal agency collects consistent and reliable information on the number, size and location of large-scale agricultural operations, nor the pollution they're emitting. There are also no federal laws governing the conditions in which farm animals are raised, and most state anti-cruelty laws do not apply to farm animals.
For example, Texas, Iowa and Nebraska have excluded livestock from their animal cruelty statute and instead created specific legislation aimed at farm animal abuse that makes accepted or customary husbandry practices the animal welfare standard.
After New Jersey created similar legislation, the New Jersey Society for the Prevention of Cruelty to Animals sued the New Jersey Department of Agriculture, claiming that "routine husbandry practices" was too vague. The New Jersey Society won, and as a result, the state's Department of Agriculture has created more specific regulations.
In North Carolina, any person or organization can file a lawsuit if they suspect animal cruelty, even if that person does not have "possessory or ownership rights in an animal." In this way, the state has "a civil remedy" for farm animal cruelty.
Still, the general lack of governmental oversight of factory farms results in cramped and filthy conditions, stressed-out animals and workers, and an ideal setup for the rampant spread of disease among animals, between animals and workers, and into the surrounding environment through animal waste.
The problem: In 2017, nearly 11 million kilograms of antibiotics—including 5.6 million kilograms of medically important antibiotics—were sold in the U.S. for factory-farmed animals. Factory farms use antibiotics to make livestock grow faster and control the spread of disease in cramped and unhealthy living conditions. While antibiotics do kill some bacteria in animals, resistant bacteria can, and often do, survive and multiply, contaminating meat and animal products during slaughter and processing.
What it means for you: People can be exposed to antibiotic-resistant bacteria by handling or eating contaminated animal products, coming into contact with contaminated water or touching farm animals, which of course makes a farmworker's job especially hazardous. Even if you don't eat much meat or dairy, you're vulnerable: Resistant pathogens can enter water streams through animal manure and contaminate irrigated produce.
Developments: The European Union has been much more aggressive than the U.S. in regulating antibiotic use on factory farms, banning the use of all antibiotics for growth promotion in 2006. But the U.S. is making some progress, too. Under new rules issued by the Food and Drug Administration (FDA), which went into effect in January 2017, antibiotics that are important for human medicine can no longer be used for growth promotion or feed efficiency in cows, pigs, chickens, turkeys and other animals raised for food.
Additionally, 95 percent of medically important antibiotics used in animal water and feed for therapeutic purposes were reclassified so they can no longer be purchased over the counter, and a veterinarian would have to sign off for their use in animals. As a result, domestic sales and distribution of medically important antimicrobials approved for use in factory farmed animals decreased by 43 percent from 2015 (the year of peak sales) through 2017, reports the FDA.
However, the agency still allows routine antibiotic use in factory farms for disease prevention in crowded and stressed animals, so these new rules aren't nearly enough, says Matthew Wellington, antibiotics program director for the U.S. Public Interest Research Group Education Fund.
"The FDA should implement ambitious reduction targets for antibiotic use in the meat industry, and ensure that these medicines are used to treat sick animals or control a verified disease outbreak, not for routine disease prevention," Wellington said in a statement, according to the Center for Infectious Disease Research and Policy.
National Resources Defense Council Senior Attorney Avinash Kar agrees. "Far more antibiotics important to humans still go to cows and pigs—usually when they're not sick—than to people, putting the health of every single one of us in jeopardy."
Water and Pollution
The problem: Livestock in this country produce between 3 and 20 times more waste than people in the U.S. produce, according to a 2005 report issued by the Environmental Protection Agency (EPA). That's as much as 1.2-1.37 billion tons of manure a year. Some estimates are even higher.
Manure can contain "pathogens such as E. coli, growth hormones, antibiotics, chemicals used as additives to the manure or to clean equipment, animal blood, silage leachate from corn feed, or copper sulfate used in footbaths for cows," according to a 2010 report by the National Association of Local Boards of Health. Though sewage treatment plants are required for human waste, no such treatment facility exists for livestock waste.
Since this amount far exceeds what can be used as fertilizer, animal waste from factory farms typically enters massive, open-air waste lagoons, which spread airborne pathogens to people who live nearby. If animal waste is applied as fertilizer and exceeds the soil's capacity for absorption, or if there is a leak or break in the manure storage or containment unit, the animal waste runs off into oceans, lakes, rivers, streams and groundwater.
Extreme weather increases the possibility of such breaks. Hurricane Florence, for example, flooded at least 50 hog lagoons when it struck the Carolinas last year, and satellite photos captured the damage.
Whether or not the manure is contained or spread as fertilizer, it can release many different types of harmful gases, including ammonia and hydrogen sulfide, as well as particulate matter comprised of fecal matter, feed materials, pollen, bacteria, fungi, skin cells and silicates, into the air.
What it means for you: Pathogens can cause diarrhea and severe illness or even death for those with weakened immune systems, and nitrates in drinking water have been connected to neural tube defects and limb deficiencies in newborns (among other things), as well as miscarriages and poor general health. For infants, it can mean blue baby syndrome and even death.
Gases like ammonia and hydrogen sulfide can cause dizziness, eye irritation, respiratory illness, nausea, sore throats, seizures, comas and death. Particulate matter in the air can lead to chronic bronchitis, chronic respiratory symptoms, declines in lung function and organic dust toxic syndrome. The Centers for Disease Control and Prevention (CDC) reported that children raised in communities near factory farms are more likely to develop asthma or bronchitis, and that people who live near factory farms may experience mental health deterioration and increased sensitization to smells.
Developments: It is difficult to hold factory farms accountable for polluting surrounding air and water, largely for political reasons. The GOP-controlled Congress and the Trump administration excused big livestock farms from reporting air emissions, for instance, following a decade-long push for special treatment by the livestock industry.
The exemption indicates "further denial of the impact that these [emissions] are having, whether it's on climate or whether it's on public health," says Carrie Apfel, an attorney for Earthjustice. In a 2017 report from the EPA's Office of the Inspector General, the agency admitted it has not found a good way to track emissions from factory farms and know whether the farms are complying with the Clean Air Act.
No federal agency even has reliable information on the number and locations of factory farms, which of course makes accountability even harder to establish.
The problem: The U.S. has "shockingly high levels of foodborne illness," according to an investigation jointly conducted by the Bureau of Investigative Journalism and The Guardian, and unsanitary conditions at factory farms are a leading contributor.
Studying 47 meat plants across the U.S., investigators found that hygiene incidents occur at rates experts described as "deeply worrying." One dataset covered 13 large red meat and poultry plants between 2015 and 2017 and found an average of more than 150 violations a week, and 15,000 violations over the entire period. Violations included unsanitary factory conditions and meat contaminated with blood, septicemic disease and feces.
"The rates at which outbreaks of infectious food poisoning occur in the U.S. are significantly higher than in the UK, or the EU," Erik Millstone, a food safety expert at Sussex University told The Guardian.
Poor sanitary practices allow bacteria like E. coli and Salmonella, which live in the intestinal tracts of infected livestock, to contaminate meat or animal products during slaughter or processing. Contamination occurs at higher rates on factory farms because crowded and unclean living conditions increase the likelihood of transmission between animals.
It also stresses out animals, which suppresses their immune response, making them more susceptible to disease. The grain-based diets used to fatten cattle can also quickly increase the risk of E. coli infection. In poultry, the practice of processing dead hens into "spent hen meal" to be fed to live hens has increased the spread of Salmonella.
What it means for you: According to the CDC, roughly 48 million people in the U.S. suffer from foodborne illnesses annually, with 128,000 hospitalizations and 3,000 deaths each year. Salmonella accounts for approximately 11 percent of infections, and kills more people every year than any other bacterial foodborne illness.
Developments: In January 2011, President Obama signed the Food Safety Modernization Act (FSMA), the first major piece of federal legislation addressing food safety since 1938. FSMA grants the FDA new authority to regulate the way food is grown, harvested and processed, and new powers such as mandatory recall authority.
The FSMA "basically codified this principle that everybody responsible for producing food should be doing what the best science says is appropriate to prevent hazards and reduce the risk of illness," according to Mike Taylor, co-chairman of Stop Foodborne Illness and a former deputy commissioner for foods and veterinary medicine at the FDA. "So we're moving in the right direction."
However, almost a decade later, the FSMA is still being phased in, due to a shortage of trained food-inspectors and a lack of funding. "Congress has gotten about halfway to what it said was needed to successfully implement" the Act, Taylor said.
The problem: Both the number and density of animals on factory farms increase the risk of new virulent pathogens, according to the U.S. Council for Agriculture, Science and Technology. In addition, transporting animals over long distances to processing facilities brings different influenza strains into contact with each other so they combine and spread quickly.
Pigs — susceptible to both avian and human flu viruses — can serve as ground zero for all sorts of new strains. Because of intensive pig farming practices, "the North American swine flu virus has jumped onto an evolutionary fast track, churning out variants every year," according to a report published in the journal Science.
What it means for you: These viruses can become pandemics. In fact, viral geneticists link the genetic lineage of H1N1, a kind of swine flu, to a strain that emerged in 1998 in U.S. factory pig farms. The CDC has estimated that between 151,700 and 575,400 people worldwide died from the 2009 H1N1 virus infection during the first year the virus circulated.
Breast, Prostate and Colon Cancer
The problem: Factory farms in the U.S. use hormones to stimulate growth in an estimated two-thirds of beef cattle. On dairy farms, around 54 percent of cows are injected with recombinant bovine growth hormone (rBGH), a growth hormone that increases milk production.
What it means for you: The health effects of consuming animal products treated with these growth hormones is an ongoing international debate. Some studies have linked growth hormone residues in meat to reproductive issues and breast, prostate and colon cancer, and IGF-1, an insulin-like growth hormone, has been linked to colon and breast cancer. However, the FDA, the National Institutes of Health and the World Health Organization have independently found that dairy products and meat from cows treated with rBGH are safe for human consumption.
Because risk assessments vary, the EU, Australia, New Zealand, Japan, Israel and Argentina have banned the use of rBGH as a precautionary measure. The EU has also banned the use of six hormones in cattle and imported beef.
Developments: U.S. Department of Agriculture guidelines allow beef products to be labeled with "no hormones administered" and dairy products to be labeled "from cows not treated with rBST/rBGH" if the producer provides sufficient documentation that this is true. Consumers can use this information to make their own decisions about the risks associated with hormone-treated animal products.
What You Can Do
You can vote for local initiatives that establish health and welfare regulations for factory farms, but only a tiny number of states, including California and Massachusetts, are even putting relevant propositions on the ballot.
Another option is to support any of the nonprofits that are, in lieu of effective government action, taking these factory farms to task. The Environmental Working Group, Earthjustice and the Animal Legal Defense Fund are among those working hard to check the worst practices of these factory farms. Another good organization is the Socially Responsible Agricultural Project, which works with local residents to fight the development of factory farms in their own backyards.
Buying humanely raised animal products from farms and farmers you trust is another way to push back against factory farming. Sadly, products from these smaller farms make up only a fraction of the total. In the U.S., roughly 99 percent of chickens, turkeys, eggs and pork, and 70 percent of cows, are raised on factory farms.
You can support lab-grown "clean" burgers, chicken and pork by buying it once it becomes widely available. Made from animal cells, the process completely spares the animal and eliminates the factory farm. "The resulting product is 100 percent real meat, but without the antibiotics, E. coli, Salmonella, or waste contamination," writes the Good Food Institute.
In the meantime, you can register your objection to factory farming by doing your bit to reduce demand for their products. In short, eat less meat and dairy, and more plant-based proteins.
More than $13 billion has been invested in plant-based meat, egg and dairy companies in 2017 and 2018 alone, according to the Good Food Institute, and Beyond Meat's initial public offering debut in May marked the most successful one since the year 2000.
Lest you think that what you do on your own can't possibly make a difference, consider one of the major drivers behind all this new investment: consumers are demanding change.
"Shifting consumer values have created a favorable market for alternatives to animal-based foods, and we have already seen fast-paced growth in this space across retail and foodservice markets," says Bruce Friedrich, executive director of the Good Food Institute.
Tia Schwab is a former Stone Pier Press news fellow who recently graduated from Stanford University where she studied human biology with a concentration in food systems and public health.
This article first appeared on Truthout and was produced as part of a partnership between Stone Pier Press and Earth | Food | Life, a project of the Independent Media Institute. An earlier version appeared on Stone Pier Press.
EcoWatch Daily Newsletter
By Tom Duszynski
The coronavirus is certainly scary, but despite the constant reporting on total cases and a climbing death toll, the reality is that the vast majority of people who come down with COVID-19 survive it. Just as the number of cases grows, so does another number: those who have recovered.
In mid-March, the number of patients in the U.S. who had officially recovered from the virus was close to zero. That number is now in the tens of thousands and is climbing every day. But recovering from COVID-19 is more complicated than simply feeling better. Recovery involves biology, epidemiology and a little bit of bureaucracy too.
How does your body fight off COVID-19?<p>Once a person is exposed the coronavirus, the body starts producing <a href="https://www.mblintl.com/products/what-are-antibodies-mbli/" target="_blank">proteins called antibodies to fight the infection</a>. As these <a href="https://www.statnews.com/2020/03/27/serological-tests-reveal-immune-coronavirus/" target="_blank">antibodies start to successfully contain the virus</a> and keep it from replicating in the body, symptoms usually begin to lessen and you start to feel better. Eventually, if all goes well, your immune system will completely destroy all of the virus in your system. A person who was infected with and survived a virus with no long-term health effects or disabilities has "recovered."</p><p>On average, a person who is infected with SARS-CoV-2 will feel ill for about seven days from the onset of symptoms. Even after symptoms disappear, there still may be small amounts of the virus in a patient's system, and they should stay <a href="https://www.cdc.gov/coronavirus/2019-ncov/if-you-are-sick/steps-when-sick.html" target="_blank">isolated for an additional three days</a> to ensure they have truly <a href="https://health.usnews.com/conditions/articles/coronavirus-recovery-what-to-know" target="_blank">recovered and are no longer infectious</a>.</p>
What about immunity?<p>In general, once you have recovered from a viral infection, your body will keep cells called lymphocytes in your system. These cells "remember" viruses they've previously seen and can react quickly to fight them off again. If you are exposed to a virus you have already had, your antibodies will likely stop the virus before it starts causing symptoms. <a href="https://dx.doi.org/10.5114%2Fceji.2018.77390" target="_blank">You become immune</a>. This is the <a href="https://www.ncbi.nlm.nih.gov/books/NBK27158/" target="_blank">principle behind many vaccines</a>.</p><p>Unfortunately, immunity isn't perfect. For many viruses, like mumps, immunity can wane over time, leaving you <a href="https://www.sciencedaily.com/releases/2016/04/160421145747.htm" target="_blank">susceptible to the virus in the future</a>. This is why you need to get revaccinated – those "booster shots" – occasionally: to prompt your immune system to make more antibodies and memory cells.</p><p>Since this coronavirus is so new, scientists still don't know whether people who recover from COVID-19 are <a href="https://www.cdc.gov/coronavirus/2019-ncov/hcp/faq.html" target="_blank">immune to future infections of the virus</a>. Doctors are finding antibodies in ill and recovered patients, and <a href="https://www.cdc.gov/coronavirus/2019-ncov/hcp/clinical-guidance-management-patients.html" target="_blank">that indicates the development of immunity</a>. But the question remains how long that immunity will last. Other coronaviruses like <a href="https://doi.org/10.1002/jmv.25685" target="_blank">SARS and MERS produce an immune response</a> that will protect a person at least for a short time. I would suspect the same is true of SARS-CoV-2, but the research simply hasn't been done yet to say so definitively.</p>
Why have so few people officially recovered in the US?<p>This is a dangerous virus, so the Centers for Disease Control and Prevention is being extremely careful when deciding what it means to recover from COVID-19. Both medical and testing criteria must be met before a person is <a href="https://www.cdc.gov/coronavirus/2019-ncov/hcp/disposition-in-home-patients.html" target="_blank">officially declared recovered</a>.</p><p>Medically, a person must be fever-free without fever-reducing medications for three consecutive days. They must show an improvement in their other symptoms, including reduced coughing and shortness of breath. And it must be at least seven full days <a href="https://health.usnews.com/conditions/articles/coronavirus-recovery-what-to-know" target="_blank">since the symptoms began</a>.</p><p>In addition to those requirements, the CDC guidelines say that a person must test negative for the coronavirus twice, with the <a href="https://www.cdc.gov/coronavirus/2019-ncov/if-you-are-sick/care-for-someone.html" target="_blank">tests taken at least 24 hours apart</a>.</p><p>Only then, if both the symptom and testing conditions are met, is a person officially considered recovered by the CDC.</p><p>This second testing requirement is likely why there were so few official recovered cases in the U.S. until late March. Initially, there was a <a href="https://www.nytimes.com/2020/03/18/health/coronavirus-test-shortages-face-masks-swabs.html" target="_blank">massive shortage of testing in the U.S.</a> So while many people were certainly recovering over the last few weeks, this could not be officially confirmed. As the country enters the height of the pandemic in the coming weeks, focus is still on <a href="https://www.cdc.gov/coronavirus/2019-nCoV/hcp/clinical-criteria.html" target="_blank">testing those who are infected</a>, not those who have likely recovered.</p><p>Many more people are being tested now that states and private companies have begun <a href="https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/testing-in-us.html" target="_blank">producing and distributing tests</a>. As <a href="https://www.dispatch.com/news/20200406/coronavirus-in-ohio-from-its-rocky-start-testing-for-covid-19-slowly-ramping-up" target="_blank">the number of available tests increases</a> and the pandemic eventually slows in the country, more testing will be available for those who have appeared to recover. As people who have already recovered are tested, the appearance of any new infections will help researchers learn <a href="https://www.statnews.com/2020/03/24/we-need-smart-coronavirus-testing-not-just-more-testing/" target="_blank">how long immunity can be expected to last</a>.</p>
Once a person has recovered, what can they do?<p>Knowing whether or not people are immune to COVID-19 after they recover is going to determine what individuals, communities and society at large can do going forward. If scientists can show that recovered patients are immune to the coronavirus, then a person who has recovered could in theory <a href="https://www.vox.com/2020/3/30/21186822/immunity-to-covid-19-test-coronavirus-rt-pcr-antibody" target="_blank">help support the health care system</a> by caring for those who are infected.</p><p>Once communities pass the peak of the epidemic, the number of new infections will decline, while the number of <a href="https://www.newsweek.com/china-says-passed-peak-coronavirus-epidemic-covid-19-1491863" target="_blank">recovered people will increase</a>. As these trends continue, the risk of transmission will fall. Once the risk of transmission has fallen enough, community-level isolation and social distancing orders will begin to relax and businesses will start to reopen. Based on what other countries have gone through, it will be <a href="https://www.nature.com/articles/d41586-020-00154-w" target="_blank">months until the risk of transmission is low</a> in the U.S.</p><p>But before any of this can happen, the U.S. and the world need to make it through the peak of this pandemic. Social distancing works to slow the spread of infectious diseases and <a href="https://www.cdc.gov/coronavirus/2019-ncov/need-extra-precautions/what-you-can-do.html" target="_blank">is working for COVID-19</a>. Many people will <a href="https://www.yalemedicine.org/stories/2019-novel-coronavirus/" target="_blank">need medical help to recover</a>, and social distancing will slow this virus down and give people the best chance to do so.</p>
By Elizabeth Claire Alberts
The future for the world's oceans often looks grim. Fisheries are set to collapse by 2048, according to one study, and 8 million tons of plastic pollute the ocean every year, causing considerable damage to delicate marine ecosystems. Yet a new study in Nature offers an alternative, and more optimistic view on the ocean's future: it asserts that the entire marine environment could be substantially rebuilt by 2050, if humanity is able to step up to the challenge.
- 3 Ways UN Leaders Can Restore the World's Oceans - EcoWatch ›
- We Still Have Time to Restore Our Climate. But the Climate Time ... ›
- Coral in Crisis: Can Replanting Efforts Halt Reefs' Death Spiral ... ›
Across the country, the novel coronavirus is severely affecting black people at much higher rates than whites, according to data released by several states, as The New York Times reported.
- New Drilling and Fracking in California Will Hurt Latino Communities ... ›
- First-of-Its-Kind Study Finds Racial Gap Between Who Causes Air ... ›
- Environmental Negligence vs. Civil Rights: Black and Hispanic ... ›
By Zulfikar Abbany
Bread has been a source of basic nutrition for centuries, the holy trinity being wheat, maize and rice. It has also been the reason for a lot of innovation in science and technology, from millstones to microbiological investigations into a family of single-cell fungi called Saccharomyces.
Chemical leavening<p>If you like a little heft in your loaf, you will need a leavening agent.</p><p>For those short on time, you can use baking soda. That's a chemical compound of sodium bicarbonate mixed with potassium bitartrate, or cream of tartar.</p><p>Soda breads have their traditions in parts of eastern and central Europe, and in Ireland and Scotland, with Melrose loaves and "farls."</p><p>They can taste a bit bland, though, and are often considered only as an emergency solution on Sundays. No disrespect intended: They taste just fine fresh from the oven.</p><p>Whether it's chemical or more "natural," leavening relies largely on the production of carbon dioxide.</p><p>When you mix an acid, such as vinegar, buttermilk, yogurt or apple cider, with an alkaline compound like baking soda, you get CO2. That CO2 creates bubbles, which in turn capture steam in the oven and allow a bread to rise.</p><p><span></span>But it's better with yeast. Tastes better, too. It just takes more time. </p>
What is yeast?<p>There are yeasts all around us — on grains, in the air, in biofuels. It even lives inside us, but that's not always a good thing.</p><p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1090575/pdf/1471-2334-5-22.pdf" target="_blank">Candida yeast</a> can cause infections of the skin, feet, mouth, penis or vagina if it builds up too much in the body.</p><p>One of the most common yeasts, however, is <em>Saccharomyces cerevisiae</em>. That's <a href="https://www.dw.com/en/an-early-beer-archaeologists-tap-ground-at-worlds-oldest-brewery/a-45480731" target="_blank">"brewer's"</a> or "baker's" yeast.</p><p>You can get fresh baker's yeast, often in 42-gram (1.48-ounce) cubes, or as dried yeast (quick action or active, which requires rehydration) in a sachet of 7 grams.</p><p>There's little difference: One is compressed and the other is dehydrated and granulated. But they do the same thing, essentially. </p><p>Some commercial yeast producers add molasses and other nutrients. But natural yeast has plenty of useful nutrients in it anyway, including B group vitamins, so who knows whether it's good or necessary to add them. </p>
How does yeast work?<p>When you mix flour, yeast and water, you set off a veritable chain reaction. Enzymes in the wheat convert starch into sugar. And the yeast creates enzymes of its own to convert those sugars into a form it can absorb.</p><p>The yeast "feeds" on the sugars to create carbon dioxide and alcohol. The yeast burps and farts, releasing gases into the mix, and that creates bubbles to trap CO2. </p><p>It's a vital fermentation process that breaks down the gluten in the flour and helps make your bread more digestible.</p><p>The yeast cells split and reproduce, generating lactic and carbonic acid, raising the temperature and ultimately adding flavor to the mix.</p><p>The longer you leave the yeast to do its thing, the better for your bread. Time is more important than the amount of yeast. </p><p>In fact, that's an enduring question — how much yeast? I'll use 20 grams fresh yeast for 500 grams of flour. Others say that's enough yeast for 1 kilo. If you are converting a dry-yeast recipe to fresh yeast, some bakers advise tripling the weight. So, if a sachet of dried yeast is 7 grams, your fresh yeast is 21 grams.</p><p><span></span>But that also depends on the flours you are using, temperatures in the bowl and the room, and a host of other things. You'll just have to experiment and see. No number of books (and I've read a stack on bread) will help as much as trial and error.</p>
Wild yeast: Sourdough<p>So, good bread needs time. If you have a lot of time, why not move it up a notch and grow wild yeast — a sourdough starter — in your own home?</p><p>A sourdough starter is not to be mistaken (as it often is) for the leaven, or "mother," "sponge," or <em>levain</em>. That's more a second stage, a descendant of the starter. You take a scoop from your starter and add it to another flour and water mixture when you prepare the dough for a new loaf. </p><p>The sourdough process utilizes yeasts naturally present in flour and … yet more time. A longer fermentation process allows a richer lactic acid bacteria <em>lactobacilli</em> or LAB to evolve, and that can be healthy for your gut microbiome.</p><p>It's simple enough to start a sourdough starter. All you need is flour, warm water and time.</p><p>Some suggest equal measures of whole-grain flour and water at 28 degrees Celsius (82 degrees Fahrenheit), some say room temperature — just don't let the water exceed 40 C or the yeasts will die. Some suggest two parts flour to three parts water. But it's up to you whether you want a drier or wetter starter. You will know only through experimentation. </p><p>Some say you should filter tap water to remove chemicals like fluoride and avoid using water that's boiled and then cooled. Others say that really doesn't matter.</p><p>The main thing is, keep it clean and give it time. Days, weeks, months and years.</p>
- The 7 Healthiest Types of Bread - EcoWatch ›
- This Home-Baked Bread Can Help You Rise Above Industrial Food ... ›
- How Does Sourdough Get Its Unique Flavor? - EcoWatch ›
- UN Biodiversity Chief: Humans Risk Living in an 'Empty World' With ... ›
- World Leaders Urged to 'Act Now' to Save Biodiversity - EcoWatch ›
- Why Biodiversity Loss Hurts Humans as Much as Climate Change ... ›