4 Things You Should Know About Caffeine in Your Coffee
You can expect to get around 95 mg of caffeine from an average cup of coffee.
However, this amount varies between different coffee drinks and can range from almost zero to more than 500 mg.
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This is a detailed guide to the caffeine content of different types and brands of coffee.
What Factors Affect Caffeine Content?
The caffeine content of coffee depends on many factors, such as:
- Type of coffee beans: There are many varieties of coffee beans available, which may naturally contain different amounts of caffeine.
- Roasting: Lighter roasts have more caffeine than darker roasts, although the darker roasts have a deeper flavor.
- Type of coffee: The caffeine content can vary significantly between regularly brewed coffee, espresso, instant coffee and decaf coffee.
- Serving size: “One cup of coffee" can range anywhere from 30–700 ml (1–24 oz), greatly affecting the total caffeine content.
Bottom Line: Caffeine content is affected by the type of coffee bean, roast style, how the coffee is prepared and the serving size.
How Much Caffeine is in a Cup of Coffee?
The main determinant of caffeine content is the type of coffee you are drinking.
Brewing is the most common way to make coffee in the U.S. and Europe.
Also known as regular coffee, brewed coffee is made by pouring hot or boiling water over ground coffee beans, usually contained in a filter.
Espresso is made by forcing a small amount of hot water or steam, through finely ground coffee beans.
Although espresso has more caffeine per volume than regular coffee, it usually contains less per serving, since espresso servings tend to be small.
One shot of espresso is generally about 30–50 ml (1–1.75 oz) and contains about 63 mg of caffeine (3).
A double shot of espresso therefore contains roughly 125 mg of caffeine.
Many popular coffee drinks are made from espresso shots mixed with varying types and amounts of milk.
These include lattes, cappuccinos, macchiatos and Americanos.
Since the milk does not contain any additional caffeine, these drinks contain the same amount of caffeine as straight espresso.
A single (small) contains about 63 mg of caffeine on average and double (large) contains about 125 mg.
Instant coffee is made from brewed coffee that has been freeze-dried or spray-dried. It is generally in large, dry pieces, which dissolve in water.
To prepare instant coffee, simply mix one or two teaspoons of dried coffee with hot water. There is no need for any brewing.
Instant coffee usually contains less caffeine than regular coffee, with one 8-oz cup (237 ml) containing roughly 30–60 mg (4).
Although the name may be deceiving, decaf coffee is not entirely caffeine free.
However, some varieties may contain even higher amounts of caffeine, depending on the type of coffee, method of de-caffeination and cup size.
Bottom Line: The average caffeine content of an 8-oz, brewed cup of coffee is 95 mg. A single espresso or espresso-based drink contains 63 mg and decaf coffee contains about 3 mg of caffeine (on average).
Are Commercial Brands More Caffeinated?
Some commercial coffee brands contain more caffeine than regular, home-brewed coffee.
Coffee shops are also notorious for their large cup sizes, which can range up to 700 ml (24 oz). The amount of coffee in such cups is equivalent to about 3–5 regular-sized cups of coffee.
Starbucks is probably the best-known coffee shop in the world. It also offers some of the most caffeinated coffee available.
- Short (8 oz): 180 mg
- Tall (12 oz): 260 mg
- Grande (16 oz): 330 mg
- Venti (20 oz): 415 mg
Furthermore, one shot of espresso at Starbucks contains 75 mg of caffeine.
Consequently, all small, espresso-based drinks also contain 75 mg of caffeine. This includes lattes, cappuccinos, macchiatos and Americanos, among others (10).
Larger sizes, which are made with two or even three, espresso shots (16 oz), likewise contain 150 or 225 mg of caffeine.
Decaf coffee from Starbucks contains 15–30 mg of caffeine, depending on cup size.
Bottom Line: An 8-oz, brewed coffee from Starbucks contains 180 mg of caffeine. A single espresso and espresso-based drinks contain 75 mg, while an 8-oz cup of decaf coffee contains about 15 mg of caffeine.
McDonald's sells coffee all over the world, often under their McCafe brand.
However, despite being one of the biggest fast food chains that sells coffee, they do not standardize or calculate the amount of caffeine in their coffee.
As an estimate, the caffeine content of their brewed coffee is about (11):
- Small (12 oz): 109 mg
- Medium (16 oz): 145 mg
- Large (21–24 oz): 180 mg
Their espresso contains 71 mg per serving and decaf contains 8–14 mg, depending on the size of the cup.
Bottom Line: McDonald's doesn't standardize the amount of caffeine in their coffee. As an estimate, a small cup of brewed coffee contains 109 mg of caffeine. Espresso contains about 71 mg and decaf has about 8 mg.
Dunkin Donuts is another chain of coffee and donut shops that is very popular worldwide. The caffeine content of their brewed coffee is as follows (12):
- Small (10 oz): 215 mg
- Medium (16 oz): 302 mg
- Large (20 oz): 431 mg
- Extra large (24 oz): 517 mg
Decaf coffee from Dunkin Donuts may also contain quite a bit of caffeine. According to one source, a small cup (10 oz) has 53 mg of caffeine and a large cup (24 oz) contains 128 mg (13).
That's almost as much caffeine as you find in other varieties of regular coffee.
Bottom Line: A small cup of coffee from Dunkin Donuts contains 215 mg of caffeine, while a single espresso contains 75 mg. Interestingly, their decaf coffee may contain as much as 53-128 mg of caffeine.
Is Caffeine Something to Worry About?
Consuming 400-600 mg/day of caffeine is generally not associated with adverse effects in most people. This is about 6 mg/kg (3 mg/lb) of body weight or 4-6 average cups of coffee per day (16).
That being said, caffeine affects people very differently.
You'll just have to experiment and see what amount suits you best.
This article was reposted from our media associate Authority Nutrition.
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1. Stay Informed<p>A first order of business in pet evacuation planning is to understand and be ready for the possible threats in your area. Visit <a href="https://www.ready.gov/be-informed" target="_blank">Ready.gov</a> to learn more about preparing for potential disasters such as floods, hurricanes, and wildfires. Then pay attention to related updates by tuning <a href="http://www.weather.gov/nwr/" target="_blank">NOAA Weather Radio</a> to your local emergency station or using the <a href="https://www.fema.gov/mobile-app" target="_blank">FEMA app</a> to get National Weather Service alerts.</p>
2. Ensure Your Pet is Easily Identifiable<p><span>Household pets, including indoor cats, should wear collars with ID tags that have your mobile phone number. </span><a href="https://www.avma.org/microchipping-animals-faq" target="_blank" rel="noopener noreferrer">Microchipping</a><span> your pets will also improve your chances of reunion should you become separated. Be sure to add an emergency contact for friends or relatives outside your immediate area.</span></p><p>Additionally, use <a href="https://secure.aspca.org/take-action/order-your-pet-safety-pack" target="_blank" rel="noopener noreferrer">'animals inside' door/window stickers</a> to show rescue workers how many pets live there. (If you evacuate with your pets, quickly write "Evacuated" on the sticker so first responders don't waste time searching for them.)</p>
3. Make a Pet Evacuation Plan<p> "No family disaster plan is complete without including your pets and all of your animals," says veterinarian Heather Case in <a href="https://www.youtube.com/watch?v=Q9NRJkFKAm4" target="_blank">a video</a> produced by the American Veterinary Medical Association.</p><p>It's important to determine where to take your pet in the event of an emergency.</p><p>Red Cross shelters and many other emergency shelters allow only service animals. Ask your vet, local animal shelters, and emergency management officials for information on local and regional animal sheltering options.</p><p>For those with access to the rare shelter that allows pets, CDC offers <a href="https://www.cdc.gov/healthypets/emergencies/pets-in-evacuation-centers.html" target="_blank">tips on what to expect</a> there, including potential health risks and hygiene best practices.</p><p>Beyond that, talk with family or friends outside the evacuation area about potentially hosting you and/or your pet if you're comfortable doing so. Search for pet-friendly hotel or boarding options along key evacuation routes.</p><p>If you have exotic pets or a mix of large and small animals, you may need to identify multiple locations to shelter them.</p><p>For other household pets like hamsters, snakes, and fish, the SPCA recommends that if they normally live in a cage, they should be transported in that cage. If the enclosure is too big to transport, however, transfer them to a smaller container temporarily. (More on that <a href="https://www.spcai.org/take-action/emergency-preparedness/evacuation-how-to-be-pet-prepared" target="_blank" rel="noopener noreferrer">here</a>.)</p><p>For any pet, a key step is to establish who in your household will be the point person for gathering up pets and bringing their supplies. Keep in mind that you may not be home when disaster strikes, so come up with a Plan B. For example, you might form a buddy system with neighbors with pets, or coordinate with a trusted pet sitter.</p>
4. Prepare a Pet Evacuation Kit<p>Like the emergency preparedness kit you'd prepare for humans, assemble basic survival items for your pets in a sturdy, easy-to-grab container. Items should include:</p><ul><li>Water, food, and medicine to last a week or two;</li><li>Water, food bowls, and a can opener if packing wet food;</li><li>Litter supplies for cats (a shoebox lined with a plastic bag and litter may work);</li><li>Leashes, harnesses, or vehicle restraints if applicable;</li><li>A <a href="https://www.avma.org/resources/pet-owners/emergencycare/pet-first-aid-supplies-checklist" target="_blank">pet first aid kit</a>;</li><li>A sturdy carrier or crate for each cat or dog. In addition to easing transport, these may serve as your pet's most familiar or safe space in an unfamiliar environment;</li><li>A favorite toy and/or blanket;</li><li>If your pet is prone to anxiety or stress, the American Kennel Club suggests adding <a href="https://www.akc.org/expert-advice/home-living/create-emergency-evacuation-plan-dog/" target="_blank" rel="noopener noreferrer">stress-relieving items</a> like an anxiety vest or calming sprays.</li></ul><p>In the not-unlikely event that you and your pet have to shelter in different places, your kit should also include:</p><ul><li>Detailed information including contact information for you, your vet, and other emergency contacts;</li><li>A list with phone numbers and addresses of potential destinations, including pet-friendly hotels and emergency boarding facilities near your planned evacuation routes, plus friends or relatives in other areas who might be willing to host you or your pet;</li><li>Medical information including vaccine records and a current rabies vaccination tag;</li><li>Feeding notes including portions and sizes in case you need to leave your pet in someone else's care;</li><li>A photo of you and your pet for identification purposes.</li></ul>
5. Be Ready to Evacuate at Any Time<p>It's always wise to be prepared, but stay especially vigilant in high-risk periods during fire or hurricane season. Practice evacuating at different times of day. Make sure your grab-and-go kit is up to date and in a convenient location, and keep leashes and carriers by the exit door. You might even stow a thick pillowcase under your bed for middle-of-the-night, dash-out emergencies when you don't have time to coax an anxious pet into a carrier. If forecasters warn of potential wildfire, a hurricane, or other dangerous conditions, bring outdoor pets inside so you can keep a close eye on them.</p><p>As with any emergency, the key is to be prepared. As the American Kennel Club points out, "If you panic, it will agitate your dog. Therefore, <a href="https://www.akc.org/expert-advice/home-living/create-emergency-evacuation-plan-dog/" target="_blank" rel="noopener noreferrer">pet disaster preparedness</a> will not only reduce your anxiety but will help reduce your pet's anxiety too."</p>
Evacuating Horses and Other Farm Animals<p>The same basic principles apply for evacuating horses and most other livestock. Provide each with some form of identification. Ensure that adequate food, water, and medicine are available. And develop a clear plan on where to go and how to get there.</p><p>Sheltering and transporting farm animals requires careful coordination, from identifying potential shelter space at fairgrounds, racetracks, or pastures, to ensuring enough space is available in vehicles and trailers – not to mention handlers and drivers on hand to support the effort.</p><p>For most farm animals, the Red Cross advises that you consider precautionary evacuation when a threat seems imminent but evacuation orders haven't yet been announced. The American Veterinary Medical Association has <a href="https://www.avma.org/resources/pet-owners/emergencycare/large-animals-and-livestock-disasters" target="_blank">more information</a>.</p>
Bottom Line: If You Need to Evacuate, So Do Your Pets<p>As the Humane Society warns, pets left behind in a disaster can easily be injured, lost, or killed. Plan ahead to make sure you can safely evacuate your entire household – furry members included.</p>
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