You'd better not eat those Mini-Wheats if they have a certain code on them.

Kellogg's has initiated a voluntary recall of some cereals due to the possible presence of fragments of flexible metal mesh from a faulty manufacturing part, the company said.

Products covered by the recall include Frosted Mini-Wheats Bite Size Original and Mini-Wheats Unfrosted Bite Size with the letters KB, AP or FK before or after the "Best If Used Before" date.

Products impacted are:

Kellogg's Frosted Mini-Wheats Bite Size Original cereal

• UPC 3800031829 - 18-ounce carton with Better if Used Before Dates between APR 01 2013 KB - SEP 21 2013 KB
• UPC 3800073444 - 18-ounce carton with Better if Used Before Dates between APR 01 2013 KB - SEP 21 2013 KB
• UPC 3800031834 - 24-ounce carton with Better if Used Before Dates between APR 01 2013 KB - SEP 21 2013 KB
• UPC 3800046954 - 30-ounce carton with Better if Used Before Dates between APR 01 2013 KB - SEP 21 2013 KB
• UPC 3800031921 - 70-ounce club store carton with Better if Used Before Dates APR 01 2013 KB - JUL 29 2013 KB
• UPC 3800004961 - single-serve bowl with Better if Used Before Dates between 04013 KB - 09213 KB
• UPC 3800021993 - single-serve carton with Better if Used Before Dates between AP 04013 - AP 09213 or FK 04013 - FK 09213

Kellogg's Mini-Wheats Unfrosted Bite Size cereal

• UPC 3800021983 - single serve carton with Better if Used Before Dates between FK 04013 - FK 09213
• UPC 3800035982 -18-ounce carton with Better if Used Before Dates between APR 01 2013 KB - SEP 21 2013 KB

Consumers with affected products or who have questions should use the "Contact Us" feature on Kelloggs.com or call 800-962-1413 from 8 a.m. to 6 p.m., Monday through Friday.

Source: FDA website.