What traditional prefix signifies a conventionally grown item in a standard four-digit PLU code?
Answer
A prefix beginning with '3' or '4'
PLU codes are standardized labels used across the industry to identify bulk produce items efficiently. The structure of these codes communicates key growing practices. For items grown conventionally, meaning without specific organic or genetically modified modifications indicated by other prefixes, the standard four-digit code typically utilizes a starting digit of either '3' or '4'. This numeric prefix serves as the baseline identifier in the system, distinguishing these standard items from those marked with specialized prefixes designated for organic or, historically, GMO production.

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Produce: fruits and vegetables - YouTube
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