What Do Those Numbers Mean?

A lot! Below is direct information from the website of Dr. Frank Lipman.

1. If there are only four numbers in the PLU, this means that the produce was grown conventionally or “traditionally” with the use of pesticides. The last four letters of the PLU code are simply what kind of vegetable or fruit. An example is that all bananas are labeled with the code of 4011.
   
2. If there are five numbers in the PLU code, and the number starts with “8″, this tells you that the item is a genetically modified fruit or vegetable. Genetically modified fruits and vegetables trump being organic. So, it is possible to eat organic produce that are grown from genetically modified seeds. A genetically engineered (GE or GMO) banana would be: 84011
   
3. If there are five numbers in the PLU code, and the number starts with “9″, this tells you that the produce was grown organically and is not genetically modified. An organic banana would be: 94011

From Frank Lipman: The Voice of Sustainable Wellness.