Most of us don’t know that the stickers attached to the fruits and vegetables are there for more than just scanning the price.
The PLU code, or the price lookup number on the sticker can help you determine if the product is genetically modified, organic or produced with chemical fertilizers, fungicides or herbicides.
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1. A four-digit code beginning with a 3 or a 4 means the produce is probably conventionally grown. The last four letters of the code represent the kind of the fruit or vegetable you are buying. For example, bananas are always labeled with the code of 4011.