Like Costco’s price codes or the tags on your bread, the numerical codes printed on those sticky little fruit and vegetable labels can reveal a lot of information to us consumers. Once you understand the codes, you can look at that little label (also known as PLU, or “price look up” label) and know whether the produce you’re about to buy or eat was treated with pesticides, genetically modified, both, or neither.
Four-Digit Codes = Conventionally Grown Produce
These codes typically begin with a 3 or 4 and indicate that your fruit was grown conventionally, which includes the presence of pesticides. Don’t panic, though: the pesticide levels are so low they aren’t harmful. Knowing how to properly wash produce also helps remove any residue as well as bacteria and germs.
Looking Up Information on a PLU Code
You can find out pertinent details like the type of commodity, variety, size, restrictions, botanical name, etc. using PMA’s PLU codes search tool online. Just search using the four-digit code. If you don’t get any results, you could be looking at a retailer assigned code, in which case you’re best asking your grocer for more info.
Grocery store computer systems can also tell what country grew the produce, and according to U.S. law, all produce must use Country of Origin Labeling (COOL). The country must be either on the label, or on a sign next to the produce bin or display.
How to Tell What Produce Is Genetically Modified
If the label’s code has five digits and begins with an 8, then the fruit or vegetable has been genetically modified (also known as GMOs, or genetically modified organisms). Twenty-six countries currently ban or have strict restrictions on GMO produce (Poland and Italy signed on to ban Monsanto GMO corn in 2013).
Note that if you’re looking up information on the PLU code, do not include the first number of a 5-digit code—the first number is just an identifier for GMO products. For example, 4011 would be a standard yellow banana, but an 84011 would be a genetically modified standard yellow banana.
How to Tell What Produce Is Organic
Five-digit codes beginning with a 9 mean that the fruit is grown in accordance with USDA organic standards. It’s more expensive, but there’s a reason why: the USDA National Organic Program has many requirements that growers have to meet to get their food labelled “organic.”
Image via Reseau Veille Tourisme
Remember: words like “natural” or “from nature” on foods don’t have to meet government standards and mean something very different from organic.
Image via Emile Noel
Again, only search PLUs by their last 4 digits, as the first in a 5-digit code is just an identifier. The only identifiers currently are 8 and 9—no others exist.
A Word of Caution
While this information is pertinent for PLU codes issued by the International Federation for Produce Standards, it is important to note that the PLU system is voluntary and not mandated by any governing body (as stated on their home page). This article serves as a guideline, but your best resource will always be the grocery store itself, which keeps a catalogue of PLU codes and their indications.