When boiling water (for tea) sometimes a white foam forms on the top of the water? What causes this, and is the foam likely to be comprised of anything other than water? -
![Why does my boiled water seem to have white bits of minerals? | Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum Why does my boiled water seem to have white bits of minerals? | Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum](https://cdn.homebrewtalk.com/data/attach/123/123796-DSC06000.jpg)
Why does my boiled water seem to have white bits of minerals? | Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum
![safety - Can groundwater still be consumed if after boiling the water turns brown with an oily substance floating on top? - The Great Outdoors Stack Exchange safety - Can groundwater still be consumed if after boiling the water turns brown with an oily substance floating on top? - The Great Outdoors Stack Exchange](https://i.stack.imgur.com/lIJXp.jpg)
safety - Can groundwater still be consumed if after boiling the water turns brown with an oily substance floating on top? - The Great Outdoors Stack Exchange
![Why does my boiled water seem to have white bits of minerals? | Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum Why does my boiled water seem to have white bits of minerals? | Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum](https://cdn.homebrewtalk.com/data/attach/123/123795-DSC05999.jpg)
Why does my boiled water seem to have white bits of minerals? | Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum
![24. Many times when we put filtered water in the electric kettle or in a pot to boil it, a white residue can be observed. Does this mean that my water is 24. Many times when we put filtered water in the electric kettle or in a pot to boil it, a white residue can be observed. Does this mean that my water is](https://cy.camelotwater.com/wp-content/uploads/sites/9/2020/06/24-en.png)
24. Many times when we put filtered water in the electric kettle or in a pot to boil it, a white residue can be observed. Does this mean that my water is
![Does anybody know what causes boiled water to leave this white residue? Also, what is this residue? Lol.. Commack NY. TIA! : r/longisland Does anybody know what causes boiled water to leave this white residue? Also, what is this residue? Lol.. Commack NY. TIA! : r/longisland](https://i.redd.it/fvb1w1ghjoe61.jpg)