I wonder how much longer frozen food would last if you could plunder some of the -60 freezers common in bio labs. I'm often amused that the one good university

I wonder how much longer frozen food would last if you could plunder some of the -60 freezers common in bio labs. I'm often amused that the one good university cafeteria in smack in the middle of one of the biology building, and the corridor is lined with freezers alternating between -60 microbial storage and "Food Freezer. Do not use for sample storage!"