Can’t afford fancy gear? Use red cabbage. Yes, the sad vegetable at the bottom of your fridge is a pH superhero. Boil it, save the purple water, and add your test sample.
If the liquid turns hot pink, your water is acidic (like vinegar). If it turns greenish-blue, it’s basic (like baking soda). And if it turns clear? Well, you’ve just defeated the cabbage, and it’s time to congratulate yourself.
This method is ridiculously fun and smells like a forgotten science fair. Also, now you have an excuse not to eat that cabbage.
