Deionized water is fantastic for car batteries, aquariums, steam irons, and lab experiments. It’s also great for watering sensitive plants that hate tap water minerals.
Deionized Water For Cooling System at Milla Gadsdon blog
But please, don’t drink it as your main water source! Deionized water is so pure it can actually leach minerals from your body. That’s great for cleanup, not so great for your teeth.
It also tastes super flat and boring—like drinking a glass of nothing. You’ll miss the tiny tang of minerals that gives tap water its personality.
