I keep mine in one of these (about to order the larger one!) along with boveda 32% packs. It’s in two large ziplocks with desiccant packs in each layer of ziplocks. Kept in the bottom drawer of my fridge.
I take it out and let it sit for at least 20-24 hours before opening it. So far so good but I have no way of knowing if I’m doing this right and only time will tell lol. There is never any moisture present inside the box from what I’ve seen.
Just figure since I only use 1-3 packs at a time, and am constantly replacing things with new gear, freezing would do more harm that good?
edit: I also have a little lock on it because why not