Definition per Regulation 146 (1 March 2010) to the Foodstuff, Cosmetics and Disinfectants Act 54 of 1972 (as amended)
"Date of minimum durability" ("Best Before" or "Best Before End") means the date which signifies the end of the period under any state storage conditions during which the product will remain fully marketable and will retain any specific qualities for which tacit or express claims have been made. However, beyond the date the food may still be perfectly satisfactory.
This Definition interpreted by the Department of Health in the Media Statement it issued on 9 March 2010
“Best Before" date to be mandatory for non-perishables but no prohibition placed on sale thereof after date has expired in view of it relating only to the optimum freshness, thus quality aspects, of these products.
The 'Best Before" date does not provide a health and safety guarantee. The "Best Before" date provides only a quality guarantee up to that date. Therefore, after that date, the product should still be safe for consumption, unless the container is showing signs of rust, is blown, is damaged, or has been opened.