Betcha didn't know, those small stickers on produce have something to tell you! According to the International Federation for Produce Standards (IFPS), the first number of these PLU or Price Look-Up codes actually tells you how these guys were grown.
Here's how to decode the codes. If the first number is:
• 3 or 4 - This means conventionally grown produce (pesticides, herbicides and fertilizers).
• 8 - This indicates genetically modified (GMO) or genetically engineered (GE) produce.
• 9 - This means that the produce is organic (non-GMO and no hormones, fertilizers, synthetic pesticides or any other "-cides").
Of course, price is always a factor, but when possible, do your best to go for the 9s. What I always do is spot what organic produce is on sale and stock up on that first. Happy shopping!