Caffeine and confusion: Debunking the 10 biggest coffee myths
If there’s one beverage that’s sparked countless conversations, heated debates, and passionate opinions, it’s coffee.
You can’t browse the internet without stumbling on a rumor or two about this beloved bean juice. In the spirit of truth, let’s demystify the top 10 coffee myths once and for all.
1. Myth: Dark roast coffee is stronger than light roast coffee
Here’s a fact that might surprise you: dark roast coffee isn’t higher in caffeine than light or medium roasts.
That bold, smoky flavor we all associate with a serious caffeine jolt? It’s actually the result of a longer roasting process, which can reduce the caffeine content by weight.
So, if a dark roast doesn’t have more caffeine, why does it taste so strong? The longer beans roast, the more they caramelize, creating those rich, smoky flavors. But that intensity is about taste—not energy.
If you’re chasing that extra caffeine buzz, a light or medium roast might be a better choice. However, if you’re like me and can’t resist that deep, roasted flavor, dark roast is still the way to go. It comes down to what you enjoy most!
2. Myth: Espresso has way more caffeine than a cup of drip coffee
Espresso might feel like a jolt of rocket fuel, but here’s the surprising part—unlike what coffee myths would have us believe, it usually contains less total caffeine than drip coffee.
Because espresso is so concentrated, it tastes stronger. Ounce for ounce, it does pack more caffeine. A single shot (about 1 ounce) typically contains around 63 milligrams of caffeine.
However, since the serving size is so small, you’re actually consuming less caffeine overall compared to an eight-ounce cup of drip, which averages about 95 milligrams.
3. Myth: Decaf means zero caffeine
Here’s something decaf drinkers should know—”decaf” doesn’t mean caffeine-free. It’s mostly free of caffeine.
Decaf coffee still has a little caffeine in it—usually around 2 to 5 milligrams per cup. That’s much less than regular coffee, but it’s not zero.
So, if you’re super sensitive to caffeine, don’t assume you can chug six cups of decaf at midnight and still sleep like a baby.
4. Myth: Instant coffee is “fake” coffee
Instant coffee is real coffee—it’s just made a little differently. Manufacturers brew real coffee beans, then freeze-dry or spray-dry the liquid to create those familiar, dissolvable granules.
Sure, you might notice a difference in flavor compared to freshly brewed coffee. Instant won’t deliver the same depth or complexity—but that doesn’t mean it’s not the real deal.
If you’re short on time or need a quick caffeine fix on the go, instant coffee can be a total lifesaver. It still comes from authentic beans, after all.
5. Myth: Coffee after 3 p.m. will keep you awake all night
Caffeine hits everyone a little differently, and it depends on how sensitive you are and how fast your body breaks it down.
Some people can enjoy an espresso after dinner and sleep like a baby. Others? One cappuccino after lunch, and they’re staring at the ceiling all night.
The trick is to pay attention to how your body reacts. If that afternoon shot of espresso keeps you wide-eyed at bedtime, try shifting your caffeine window earlier in the day.
On the flip side, if you’ve got a higher tolerance, you might be able to sip on coffee well into the evening without missing a wink.
6. Myth: You need fancy equipment to brew good coffee at home
Those sleek espresso machines and fancy coffee gadgets might look amazing—but here’s the truth: you don’t need them to make a great cup of coffee at home.
What really makes the difference? Fresh beans, the right grind, and water at the right temperature. That’s it!
Tools like a French press, a simple pour-over, or even a well-loved drip machine can brew a seriously good cup—no need to spend a fortune (unless you want to, of course).
7. Myth: Coffee cures hangovers
Wouldn’t it be great if a strong cup of coffee could magically erase a post-party headache? Unfortunately, it’s not a miracle fix.
While caffeine might give you a temporary boost and help you feel more alert, it doesn’t rehydrate you or clear out the toxins from alcohol.
In other words, coffee can perk you up but won’t speed up your recovery. Your body needs water, rest, and time to bounce back. So go ahead and sip that cup of joe—but pair it with a big glass of water. Your head (and your body) will thank you!
8. Myth: Freshly roasted coffee should be consumed immediately
Fresh coffee is key, but many people don’t realize that newly roasted beans actually need a little time to rest. Right after roasting, they go through a “degassing” phase, releasing carbon dioxide for several days.
That’s why many roasters suggest waiting a bit before brewing. Letting the beans rest helps their flavors develop more fully. In fact, many coffee lovers find the taste is best between 3-10 days after roasting.
So don’t rush it! Just store your beans in an airtight container in a cool, dry spot, and aim to use them within a few weeks. That way, you’ll get the freshest, most flavorful cup every time.
9. Myth: Cold brew is weaker than iced coffee
Cold brew might taste smooth and mellow, but don’t let that fool you—it often packs more caffeine than your regular iced coffee.
Here’s why: cold brew usually uses more coffee grounds and steeps for a much longer time. That slow process pulls out a strong, concentrated brew that’s low on acidity but high on caffeine.
So while it might go down easy, a well-made cold brew can definitely deliver a serious jolt. If you’re looking for a smooth sip with a bold kick, cold brew’s got your back!
10. Myth: Coffee must be brewed with boiling water
Although some people swear by using boiling water to brew coffee, it’s not the best approach. Water at a rolling boil (212°F / 100°C) can be too hot and may scorch your coffee grounds.
Most coffee experts recommend brewing between 195°F and 205°F (about 90°C to 96°C). Staying within this range helps extract the best flavors without tipping into bitterness or over-extraction.
Don’t have a thermometer? No worries—just let your water sit for about 30 seconds after boiling. That quick pause brings it down to the ideal temperature for a smooth, delicious brew.
