Food label stickers, especially on produce, often contain a four or five-digit "PLU" (Price Look-Up) code, which indicates whether the fruit or vegetable is conventionally grown (4 digits) or organic (5 digits starting with 9). Here's a breakdown:4-digit PLU:Indicates conventionally grown produce, meaning it might have been grown using synthetic fertilizers and pesticides. 5-digit PLU starting with 9:Indicates organic produce, meaning it was grown using natural methods, avoiding synthetic fertil