Beware of sharp objects in your SPAM. More than 228,000 pounds of the canned meat product are being recalled after customers found pieces of metal in their tins, the Associated Press reports.

The U.S. Department of Agriculture says four customers complained about biting into metal, and “minor oral injuries" were reported. The 12-ounce cans in question were produced on one particular day in February at the Hormel Foods plant in Fremont, Nebraska. Only the “classic” variety of SPAM is being removed from store shelves.

If you bought a can of SPAM from Costco, Sam’s Club, or BJ’s Wholesale Club, you’re in the clear because none of those stores are part of the recall, according to Hormel.

To find out if your SPAM is safe to eat, check the bottom of the tin. Throw it out or return it if it contains the establishment number “EST.199N," a February 2021 expiration date, and one of the following production codes: F020881, F020882, F020883, F020884, F020885, F020886, F020887, F020888, or F020889.

Hawaii—whose residents consume the most SPAM per capita in the U.S.—was not among the 31 states affected by the recall, according to Honolulu’s KHON-TV. For the full list of affected states, you can read an update from Hormel here.

[h/t NBC News]