Is it safe to store coffee in a plastic airtight canister?
Plastic canisters may transfer flavors and chemicals to coffee over time. Glass or stainless steel canisters are cleaner.
What's actually in it
The answer to this question depends on conditions: what material, what temperature, how often, and what alternatives you have available.
Research shows that under some conditions this is low risk, and under others, chemical transfer is measurable. Understanding when matters.
What the research says
Plastic canisters may transfer flavors and chemicals to coffee over time. Glass or stainless steel canisters are cleaner.
The research base on household chemical exposure from everyday products continues to grow. Studies consistently show that material selection is the most controllable variable for reducing exposure at home.
The research at a glance
What to use instead
Browse our vetted, non-toxic alternatives. Every product is third-party certified.
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