Can I store my Atmos vacuum canister in the freezer? October 16, 2018 01:01 Follow We don't recommend storing Atmos in the freezer since it'll likely degrade the silicone seal overtime. Related articles Is there any advantage in choosing between the stainless steel or clear glass canister? How does Atmos differ from other storage containers? Can I store ground coffee in Atmos? How do I prevent the handle from melting? What are the product dimensions for each size?