Be A Sticker Do not be confused on the codes you see when buying produce. These codes are often the bane of any supermarket checkout employee's existence. The four-, sometimes five-, digit code is punched in for each produce that is bought, signifying to the computer how much it either costs per pound or by number of items. While they are a pain to learn, the codes signify certain types of produce.
4 digit code starting with a 3 or 4 = conventionally grown
5 digit code starting with a 9 = organic
5 digit code starting with an 8 = genetically modified