News & Views: Down the drain

In your article on Milk Paint (June/July 22), Kimberly Winkle says it can be washed down the drain. Most paints are classified as household hazardous waste because of their chemical contents—VOCs, lead, chromium, among others. Milk paint doesn’t contain those chemicals in either its powdered or liquid form. Even so, milk paint shouldn’t be washed down the drain, despite some manufacturer claims, because it is clay-based. It can, however, be thrown away with regular trash or even composted. But to be safe, check your local regulations.

—Kendall Pickering, Buckeye, AZ

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