Use-by': Foods must be eaten or thrown away by this date. After this date, foods may be unsafe to consume even if they appear fine physically. This is because the nutrients in the food may become unstable or a build-up of bacteria may occur. It is illegal to sell foods after a 'use-by' date as they may pose a health or safety risk.

'Best-before': Foods are still safe to eat after the date as long as they are not damaged, deteriorated or perished. The 'best-before' date simply indicates that the product may lose some of its quality after this date passes. Food can be legally sold after a 'best before' date as long as they are not damaged, deteriorated or perished. You can expect these foods to retain their colour, taste, texture and flavour as long as they are stored correctly. (Department of Primary Industries, Food Authority NSW).