Kraft Foods Group announced on Saturday that it was voluntarily recalling 1.2 million cases of four brands of cottage cheese products due to improper storage. The company statement noted that, while it was unlikely, improper storage could create conditions that could lead to premature spoilage and/or foodborne illness, so it was instituting the recall as a precaution.

The products were shipped nationwide from the company’s plant in Tulare, CA, and include cottage cheese sold under the Breakstone, Simply Kraft, Knudsen and Daily Chef labels. According to Kraft, some ingredients in the affected cottage cheese products were not stored at company temperature standards.

All the affected products have code dates from May 9, 2014, through July 23, 2014, which can be found on the bottom of hte cup or the top of the package. Those Simply Kraft products with a plant code of 36-2158 on the cups or a “W” in the case code (e.g., “W 21 JUL 2014”) are not affected. Simply Kraft products subject to the recall are only those with a plant code of 06-245 on the bottom of the cup and case code date without any “W” (e.g., “21 JUL 2014”).

No other Knudsen, Breakstone’s, Simply Kraft or Daily Chef products are included in the recall.

Consumers who purchased any of these products should not eat them but should return them to the store where purchased for an exchange or full refund. Consumers also can contact Kraft Foods Consumer Relations at 1-800-396-6307 between 9 a.m. and 6 p.m. Eastern Daylight Time.