(UPI) — Hormel Food Corp. is recalling approximately 228,614 pounds of canned pork and chicken Spam and luncheon loaf products that may be contaminated with pieces of metal.

The U.S. Department of Agriculture’s Food Safety and Inspection Service announced Saturday the recalled products were produced from Feb. 8-10 in 12-ounce cans.

Affected are “Spam Classic” with a “Best By” February 2021 date and production codes: F020881, F020882, F020883, F020884, F020885, F020886, F020887, F020888 and F020889. These products were shipped throughout the United States.

Also recalled are “Hormel Foods Black-Label Luncheon Loaf” with a “Best By” February 2021 date and production codes F02098 and F02108. These products were shipped to Guam only.

The products bear establishment number “EST. 199N” on the bottom of the can.

Hormel, headquartered in Fremont, Neb., decided to recall the products after four customers reported finding the metal pieces and informed the USDA on Thursday. Customers had minor oral injuries from consumption of the recalled products.

Consumers are urged to throw away the products or return them to the place of purchase.

The USDA said the recall is listed by the USGA as a Class 1 recall, meaning the health risk is high because there is a “reasonable probability that the use of the product will cause serious, adverse health consequences or death.”

Consumers can contact Consumer Response, Hormel Foods, at 800-523-4635.

Spam was first introduced in 1937 and gained popularity for its use during World War II. It’s six ingredients are pork with ham, salt, water, potato starch, sugar and sodium nitrate.