The Science of 1 Drop: Do Coffee Minerals Actually Matter?

Can a single drop of minerals completely transform your cup of coffee? Today, we’re testing out the Apex Water mineral kit (Tonic, Lilac, and Jam) against plain reverse osmosis (RO) water. Using a washed Ethiopian coffee featuring notes of white peach, jasmine, and lychee, we brew a base cup and compare how each mineral profile shifts the acidity, body, and delicate floral aromas. Is dialing in your water chemistry the ultimate next step for coffee hobbyists, or is it too much fuss? Let's taste and find out!