Two lots of cheese curds have been recalled from Trader Joe’s stores after random sample testing turned up listeria in some finished product. Manufacturer Face Rock Creamery’s recall notice said the Oregon company did the testing itself on its Vampire Slayer Garlic Cheddar Curds.

Trader Joe’s has issued a recall on a specific cheese product due to a potential contamination with Listeria monocytogenes, a harmful bacterium that can cause serious illness in vulnerable individuals.