I've boughten a couple bottles, school size bottles when it's on sale in the Fall before school starts. This was a couple years ago and it's still as good as when I bought it. Just about out of 1 bottle too. Checked the other bottle and it still looks good. This is the white school glue too. I also thought about getting a gallon of the clear stuff I saw at Walmart but I really don't anywhere to put it so will continue using the white stuff.