According to the Food Labeling Law, all foods marketed for sale are required to be labeled with a clear shelf life and production date on the packaging. The most common shelf life for industrially-concentrated honey on the domestic market is two years or 18 months, and over time, it has been agreed that everyone labels it this way.

But it is important to note that not fully ripe honey or other honey products with additives, fermentation bubbles, sour, rancid, dilute and other phenomena after a long period of time, is already deteriorated, can not be consumed. If the fermentation is not serious, and do not want to throw away, a little treatment can still continue to eat, but the nutritional value and role to be far from it (in about 60 ° C in hot water heating 0.5 ~ 1 hour).