Question about F/T rats.

[Gocntry]

How long to the last in the freezer? I have 3 snakes and the each eat a different size rat (fuzzy, Pup and weaned) currently. I placed an order of 25 each but have noticed that some are starting to get freezer burn on them after a month or so. Is that normal? Do people separate them and vacuum seal them?

Last order I made was from Perfect Prey, they come vacuum sealed in packs of 15 (small rats), I order enough for a years worth of feeding (unless I add a snake or 2), then it's not quite a years worth

I haven't had any issues with quality yet (last order received in February).

I also order from Big Cheese (depending on who has what I need in stock) No issues there either.