Where to keep baby brine shrimp

Does anybody know where to keep brine shrimp eggs before put in water like when they are still in the jar.
if you can help that would be great

I keep mine under my tank in my basement which is in the 60 degree mark but the pet store where i buy them from has them out front and its always ssooooooo hoootttt in the pet store.

All my brine shrimp eggs are stored in the refrigerator. I do bulk purchases from brineshrimpdirect. I purchase vacuum sealed cans and store them in the refrigerator, the cold maintains high yields. I buy sealed cans because the eggs stay viable longer and that way if one can does go stale I always have unopened cans as a backup supply. Once a container is opened I transfer the unused eggs to a glass jar with screw lid and add silica gel desiccant packs to the container to absorb any moisture and humidity. The sealed jars are also stored in the refrigerator and I write the date on the lid so I know how long they have been opened. The desiccant and cold keeps the eggs fresh for a much longer period. I go through a lot because I also breed dwarf seahorses and always have 3-4 cultures going at once.