With all the publicity about organic food lately and how conventionally grown and genetically modified food is inferior quality, or at the least, not as nutritious or safe, knowing for sure how that head of lettuce or bag of potatoes or bunch of grapes was grown might be important to you.
PLU (Price Look Up) codes are four or five number codes that bring up the price of each item. Within these codes is information about the food itself.
If the code number (you can see it on the label or price tag) is four numbers, the product was grown conventionally.
If the code is made up of five numbers, the product is either organic or genetically modified. An organic product code starts with the number 9, while a genetically modified product code starts with the number 8. Never buy a product (unless it's at a farmer's market or direct farm to consumer) without a PLU code and know what it stands for.
Knowing about food before you buy it can insure that you get fresh, nutritious food not by chance or by trick, but by choice.