Ever notice the numbers attached to your produce? You see them on stickers, or on the wire holding a bunch of leafy greens together. Those numbers reveal more than the price you pay at the cashier. Produce number codes also clue you in to the way your fruit and vegetables are grown.

5 digits starting with 9 means the produce is organic.
5 digits starting with 8 means the produce is genetically modified.
4 digits means the produce was grown using conventional farming methods, with chemical fertilizers.