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Alton Brown’s Coffee-Brewing Trick Is Strange, but It Works

Updated: 3 days ago

Alton Brown's Coffee Trick
Alton Brown's Coffee Trick

If you brew coffee at home every morning like me, you probably think you can make your cup perfectly. French roast, vanilla cream, sugar, and a dash of cinnamon tell me it’ll be a “Good Morning” (and so does everyone in hearing range of me as I sing to my coffee machine).

I’ve had time to hone my preferences from a sugary mug of Café Bustelo before school in the 6th grade (really) to what I love 20 years later. So, when someone tells me how to brew the perfect cup of coffee, I take it with a grain of salt.

Imagine my surprise, then, when, thanks to a tip from Alton Brown, I learned I apparently needed to be a little more literal about it.

Recently, Buzzfeed revisited an old episode of Good Eats hosted by food genius and horned-rimmed-glasses aficionado Alton Brown. In the clip, Brown shares several tips on making the perfect brew, but one suggestion in particular sticks out: add a dash of salt to your grounds before brewing.

(Image credit: Joseph Lamour)

Although the clip is from 2010, the tip is something Brown himself says he often hears about. “I touched upon this on Good Eats, but I often read about my addition of salt to coffee from fans all the time,” Brown says on his Facebook page.

“Not only does salt cut the bitterness of coffee, but it also smooths out the ‘stale’ taste of tank-stored water,” Brown continues. “I’ve added a quarter teaspoon of kosher salt to every six tablespoons of grounds. That isn’t enough to taste, but it’ll do the trick.”

I Tried Alton Brown’s Coffee Tip

I tried this trick and brewed two identical coffee batches using a French press instead of a drip machine. One batch had a quarter teaspoon of salt and was brewed like I do every morning.

As you can see, the one on the left, brewed with salt, even looks smoother (which just might be what salt looks like in coffee, but it still made me ooh at the sight). Bottom line? It tasted less bitter — and yes, more salty (I mean, it’s salt). You're fine if you don’t salt it like movie popcorn. Minutes after the test, I realized I drank a cup of coffee, black without adding anything to it. That hasn’t happened in a long time.

Still, I had an additional two cups (one with salt, one without), adding my usual items (sugar, cream, cinnamon), and found I needed less of them to fight the bitterness of my coffee. This is because our tongue’s sense of taste has more sodium taste receptors than bitterness receptors, which is also true for protein, which is why we like heavy cream and almond milk in our coffee.

Brown also mentions that scientific research has proven that salt is better at neutralizing bitterness than sugar, which salted grapefruit lovers worldwide can attest to. Sugar is slightly more acidic, and salt is not at all, so salt coffee also tastes smoother. The thought of salt in coffee only sounds strange initially — until you remember sweet and salty are a remarkable pair.

Brown suggests ways to improve the quality of every element of your morning coffee on his blog (part one was written three years ago, so I’ll remain patient for part two), and you should try them. Just space out your comparison tests a little — I only realized I drank four extra cups of coffee in one day. Only for Alton.


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