Does blue cheese dressing have penicillin?

Blue cheese dressing does not have penicillin. Penicillin is an antibiotic that is produced by certain types of mold, but it is not used in the production of blue cheese dressing. Blue cheese dressing gets its flavor from the mold Penicillium roqueforti, but this mold does not produce penicillin. Additionally, penicillin is not safe for human consumption in large quantities, so it would not be added to blue cheese dressing even if it was produced by the mold.