Add a Pinch of This to Your Coffee and the Bitterness Disappears
Most people have a way of dealing with bitter coffee. Some pour in cream until the cup turns pale, while others stir in spoonful after spoonful of sugar. A few just grit their teeth and drink it black, telling themselves they’ll get used to it. But there’s a simple trick that many old-timers swear by, and it’s probably already sitting on your kitchen table.
The secret is a tiny pinch of salt. It sounds strange, and plenty of people make a face when they first hear about it. But salt has a surprising effect on how we taste bitterness, and a few grains can make a harsh cup of coffee taste smoother without making it salty. Here’s how the trick works, where it came from and how to try it at home.
Why Salt Cuts Bitterness
Our tongues detect five basic tastes: sweet, sour, salty, bitter and umami. These tastes interact with each other in complicated ways. Food scientists have found that salt can suppress our perception of bitterness, which is why a little salt can make bitter foods taste better.
Coffee contains compounds that taste bitter, especially when it’s brewed too strong, made from cheap or over-roasted beans, or left to sit on a hot plate for too long. A small amount of salt doesn’t remove those compounds, but it changes how our tongues react to them. The bitterness fades into the background, and other flavors come forward.
How Much Salt to Use
The key is using just a tiny amount. For a single cup of coffee, a few grains or a very small pinch is enough. For a full pot, about an eighth to a quarter of a teaspoon added to the grounds before brewing is a good place to start.
Too much salt will make your coffee taste salty, which is not the goal. Start small and add more only if needed. Many people find that once they get the amount right, they can’t go back.
Add It to the Grounds or the Cup
There are two ways to add salt to coffee. You can sprinkle it directly onto the coffee grounds before brewing, so it dissolves evenly as the water passes through. Or you can add a few grains to your cup after the coffee is brewed and stir.
Adding it to the grounds is often easier for a full pot, while adding it to the cup lets you adjust each serving. Either way works.
Where the Trick Came From
Adding salt to coffee isn’t a new idea. It has been practiced in different parts of the world for generations. In some parts of Scandinavia and Eastern Europe, people have long added salt to their coffee. Sailors and soldiers are also said to have used salt to improve bad coffee, especially when it was brewed with brackish water or old beans.
The trick got a big boost in popularity when TV food scientist and cook Alton Brown recommended it, explaining that salt helps cut bitterness. Since then, many coffee lovers have tried it and become converts. In parts of Asia, “sea salt coffee,” topped with a lightly salted cream, has also become a popular drink.
Will It Make My Coffee Salty?
When used correctly, salt won’t make your coffee taste salty. The amount is so small that you won’t notice it as a flavor. Instead, you’ll notice that the coffee tastes smoother and less harsh.
If you can taste the salt, you’ve used too much. Simply cut back next time.
Is It Healthy?
A pinch of salt adds only a small amount of sodium to your diet. But if you’re watching your salt intake for health reasons, it’s worth keeping in mind. The American Heart Association recommends that most adults limit sodium, and its guide explains how much sodium you should eat per day.
Using salt in coffee may also help some people cut back on sugar and cream, since smoother coffee may not need as much to make it taste good. That could be a healthier trade-off for some.
It’s also worth remembering that coffee itself contains caffeine. The Mayo Clinic says up to 400 milligrams of caffeine a day appears to be safe for most healthy adults, according to its guide to caffeine.
Other Ways to Reduce Bitterness
Salt isn’t the only way to make coffee taste better. Using fresh, good-quality beans makes a big difference. Grinding beans just before brewing and storing them in an airtight container can help too. Using the right ratio of coffee to water and not brewing too long can also prevent bitterness.
Coffee that sits on a hot plate for a long time can turn bitter, so it’s best to drink it fresh or keep it in a thermal carafe. Cleaning your coffee maker regularly can also improve the taste.
What Coffee Experts Say
Professional baristas generally focus on fixing the cause of bitterness, such as stale beans, water that is too hot or brewing too long. But many agree that a pinch of salt is a handy rescue for a cup that has already gone wrong. It won’t turn cheap coffee into a specialty roast, yet it can make an ordinary morning cup noticeably smoother.
Some cooks also add a tiny pinch of salt to cold brew, iced coffee or hot chocolate for the same reason. Salt is already used to balance sweetness and bitterness in baking and candy-making, so using it in coffee follows the same logic. Once people try it, many keep a small salt shaker next to the coffee maker.
Try It Tomorrow Morning
The next time your coffee tastes too bitter, try adding a pinch of salt. It’s an easy, cheap trick that many people swear by. You may find you need less sugar or cream and enjoy your coffee more.
If you love experimenting with your morning cup, these coffee bar ideas can make your routine more fun, and a vintage find from these coffee mugs worth grabbing at the thrift store makes it even better. Have you ever tried salt in your coffee, and did it make a difference?
