The other day, health/fitness blog Mark’s daily apple had an interesting post titled Cracking the Code. We all see the PLU coded stickers on fresh produce at local grocery store - I was thinking it meant just for speeding the checkout process. But it has more to it.
Basically you start with counting the number of digits.
A four-digit number applies to conventionally grown produce, that is, those that were grown with pesticide and other chemical.
A five-digit code that has the first digit 9 applies to organically grown produce.
A five-digit code that has the first digit 8 applies only to genetically engineered items, such as seedless grapes.
You can read more on this article here
http://www.marksdailyapple.com/cracking-the-code/
