STEAM distillation removes everything. At least according to the book "Water the shocking truth that can save your life". By Paul c. Bragg and Patricia Bragg. Bragg enjoyed superior health all through out his life until he accidently died by the water wave I think. Through out his carrier he wrote many books on health. His main thing however was distilled water. He praised it and claimed that it is the only type of water that is pure and free of concerns. But things have changed quite a bit. A lot of companies now make distilled water, but can we trust them? Anyhow, this latetest book above was about the types of safe water. I've read it till the end and then and only then did Bragg finally said and apologized for keeping the reader waiting that STEAM distilled water is better than any, including Reverse Osmosis. However, Bragg never mentioned that distilled water is dead water. Because it is dead it is unutual for human consumption. I guess due to its lack of minerals it actually takes minerals out of one's body. So, the solution I found is to add your own minerals to the dead water to make come alive. I trust the minerals I add to the STEAM distilled water I drink. But for the water I am not sure. Even though it claims that it's pure, only the company really knows that. I get mine from health store. So, true distillation removes everything, but whether it was done properly is up in the air.