Because it’s not “potable”, or rated for human consumption, like cat food.
Demineralised water is mineral deficient, we need minerals. It’s also better at leeching contaminants from the material it’s, usually plastic, container is made out of. If it’s been stored for years in a bottle that may not have been sterilised correctly there’s a chance something may have grown and died in there. Doesn’t taste so good either.
Latest Answers