Claim: Electrolysis of tap water and distilled water shows that tap water contains something that is dumbing us down.
Fact-check: Electrolysis video doesn't prove tap water is dangerous - Full Fact
Verdict: the cup of tap water going green doesn't prove there's anything untoward in it. the colour change is likely to be the metal electrodes of the device breaking down, which is only possible in non-distilled water.
Organisation: Full Fact
Author: Grace Rahman
Date published: 2021-09-22T00:00:00