The other day we found a very old can of honey in my storage. Somehow, it had gotten pushed into a corner. Anyway, it was a metal can, now metal cans have a bad effect on honey if it is stored for long periods. The honey turns black and the taste charges, it becomes much stronger. If it gets too strong, you will not be able to eat it.
Upon opening this can, we found the honey to be crystallized and starting to turn black. When I bought this honey, it was a mild tasting clover honey. Now it tastes like a strong molasses. Now I don’t mind crystallized honey, where I was raised overseas all the honey we got was crystallized. It is great just spread on bread that way. However, in this case because of the taste, we felt it would best be used for cooking. We heated it at a low temperature and turned it back into a liquid and poured it into glass jars. Do not over heat it because it will kill the healthy enzymes. We will go ahead and used this honey like you would use molasses. If it had been left in the can much longer, the taste would be too strong to use.
If you have any old honey in metal cans check them now and transfer the honey into another type of container. In the correct containers, honey will never go bad.