Idiom:

Pot calling the kettle black ( the same )

Hit the book:

Rotate

Sticky

Residue

Flourish

Spoiled product

Cross-contamination

Rinse

Detergent

DATE AND ROTATE AND THROW AWAY

If you don't do anything else, do this. Not only is labeling required by law, it keeps your product fresh and your customers happy. Health inspectors look for rotation, too. Food labeling isn't as simple as slapping a piece of masking tape with a date on to product containers or trays. Masking tape can leave a sticky residue where bacteria flourishes. There are specific labels made for indirect contact with food. Popular brands include DayDots, FreshMarx, and DayMark.