What are those codes on produce?

Ever wonder what or if those stickers on you banana meant anything other than to help the cashier figure out what the price was? Turns out they do!

a four digit code means it was conventionally grown

a five digit code starting with 9 means it was organically grown

a five digit coded starting with 8 means was genetically modified

Go here for more info on PLU codes

Thanks to Ideal Bites for the tip!