Citric Acid Can Transform Your Dishes — So Why Aren’t Home Cooks Using It?

We all cook with acid. We add a squeeze of lemon to our salad dressing or a splash of vinegar to our pan sauce. It’s an essential flavor element that balances the sweetness, savoriness, bitterness, or spice of a dish. Why then, do so many people turn their noses up at citric acid?

Citric acid is a weak organic acid that is naturally occurring in sour foods like citrus, berries, and hibiscus. The commercial version is made when sugar is fermented with a fungus called Aspergillus niger, then filtered out, forming a dry, white seasoning that looks similar to salt but is mouth-puckeringly tart. 

It’s completely safe to cook with and sold at most grocery stores, and yet it's not a common pantry ingredient. “What people don’t know is that the American public used to be very familiar with citric acid,” says 2021 F&W Best New Chef Paola Velez. What’s changed? According to Velez, fewer home cooks are canning — a process that was once the most common application for citric acid. In fact, to this day, you’re most likely to find citric acid in the canning section of your supermarket. 

Citric acid is often used as a preservative, prolonging the shelf life of sauces, jams, and spreads. But now, not only are fewer people preserving at home, but the word “preservative” has a negative connotation. It’s evident when we share our editor-led taste tests, with comments like, “Are the ones you chose preservative-free?”

“When you hear the word ‘preservative’ you think ‘fake,’” says Velez. “But humans have been preserving things with the sun, salt, mold, and through different processes [for centuries]...a preservative is just making sure that you don’t have to eat it within 24 hours.”

How chefs use citric acid

Beyond canning, citric acid can be treated like any other acidity source, adding a burst of sour to whatever it touches without the flavor or additional volume that comes with citrus juice and vinegar. 

“It lets you dial in brightness exactly where you want it without adding extra liquid or competing notes,” says Devan Cunningham, a private chef who uses citric acid in the spice mix for his chicken wings. “Especially in dry spice blends, it adds this almost salivating quality that makes everything feel more craveable. It hits your palate immediately and lifts everything else. Heat feels sharper, salt feels more intentional, and the whole dish just feels more alive.”

Like you might do with salt, Velez seasons to taste with citric acid. She adds it to store-bought guava paste to cut its sticky-sweetness, to vinaigrettes when she wants to incorporate more acidity without adding more vinegar, and to lemon curd when it isn’t quite lemony enough. “You add a pinch of citric acid and all of a sudden you have this bold, vibrant, lemony lemon curd.”

Citric acid also unlocks the possibility to make homemade candy, like frozen sour grapes or tamarind jelly candies. And a little goes a long way — you only need a pinch of citric acid to make an impact. 

“It’s in your pantry for the long haul,” says Velez. “You never know when you’re going to need it.”