'Black mold-like substance' and water contamination uncovered by FDA at Tom's of Maine toothpaste factory

A man puts toothpaste on a toothbrush.

The Food and Drug Administration (FDA) found concerning bacteria and a "black mold-like substance" while inspecting a facility that makes Tom's of Maine products, namely toothpaste.

Following the inspection, the FDA sent Tom's of Maine a warning letter, which was posted publicly Tuesday (Nov. 19). The letter notes that inspectors observed "significant violations of Current Good Manufacturing Practice regulations" at the facility in Sanford, Maine.