When you think of all the items that can recalled for being tainted by bacteria, “craft paint” is probably pretty low on that list. But if you’ve got some tempera paint sitting around the house or schoolroom for craft time, you’ll want to check to make sure it’s not included in a new, massive recall.

Sargent Art announced this week the recall of 2.8 million units of craft paint sold at national retailers like Walmart, Hobby Lobby, and Amazon after finding the products may be contaminated with harmful bacteria.

According to a notice posted with the Consumer Product Safety Commission, exposure to the unspecified bacteria could have adverse health effects in immunocompromised individuals, posing a risk of serious illness through infection.

Sargent Art says that the high level of bacteria — which is not harmful to healthy individuals — was discovered during routine testing.

In all, the recall involves 13 types of Sargent Art Tempera and Finger Paints in different colors and sizes sold from May 2015 to June 2016.

So far, the company is unaware of any injuries or illnesses related to the recalled products.

Still, customers are urged to immediately stop using the past and contact Sargent Art for a full refund.

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