Sabra Dipping Company has voluntarily recalled about 30,000 cases of its Classic Hummus due to possible Listeria contamination, the Food and Drug Administration announced Wednesday.

The products being recalled are sold nationwide across all stores and supermarkets, and consumers can find the affected codes below on the top of the packages:

• 040822011143/300067 -- Sabra Classic Hummus, 10 oz -- 3.059 Best before May 11, 2015.

• 040822011143/300067 -- Sabra Classic Hummus, 10 oz -- 3.060 Best before May 15, 2015.

• 040822014687/300074 -- Sabra Classic Hummus, 20 oz -- 3.059 Best before May 11, 2015.

• 040822342049/301216 -- Sabra Classic Hummus without Garnish, 32 oz - 3.059 Best before May 11, 2015

• 040822017497/301290 -- Sabra Classic Hummus, 17 oz Six Pack -- 3.058 Best before May 11, 2015

• 040822017497/301290 -- Sabra Classic Hummus, 17 oz Six Pack -- 3.059 Best before May 11, 2015

• 040822342209/301283 -- Hummus Dual Pack Classic/Garlic, 23.5 oz -- 3.058 Best before May 11, 2015

So far there have been no reported illnesses associated with the product.

FDA officials say the contamination was discovered by routine random sample of the product collected on March 30 by the Michigan Department of Agriculture and Rural Development that tested positive for Listeria monocytogenes.