Leopard gecko food and diet ?

The fridge trick only really works with certain worms. Butterworms, mealworms, and waxworms mostly. Butters and waxes will last a few weeks, maybe a month or a bit longer. I have found small containers of mealworms that I had forgotten about, and they are fine. I actually have never had mealies die in the fridge. I'm sure its possible, but it would take a while.

I know the manufacturers are being their own advocates, but until there is some advancement in technology, insect just don't keep much nutrition when dried, no matter who does it.