Citric acid is a sour-tasting compound found in citrus fruits like lemons and oranges. It’s also used as a food additive to make sour foods more palatable.

In addition to its culinary uses, citric acid can also be used to make cocktails more sour. For example, a margarita made with citric acid instead of lime juice will have a more pronounced sour flavor.

There are many different ways to add citric acid to cocktails. One common method is to use …