Red cabbage juice is a pH indicator. Lemon juice (an acid) turns it pink. Baking soda (a base) turns it blue-green. The pigment is called anthocyanin, and you already own everything you need. #kitchenscience
Red cabbage juice is a pH indicator. Lemon juice (an acid) turns it pink. Baking soda (a base) turns it blue-green. The pigment is called anthocyanin, and you already own everything you need. #kitchenscience