Starting with a newly cleaned, reusable container, until you disassemble and scrub all the parts with soap.

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[–] 17 points 7 months ago (2 children)

Mold and bacteria can grow in it within a day or two, even if it's not visible. I hand wash mine once every week or two. I also sanitize it regularly by pouring boiling water in the tumbler (it's metal) when I make tea, then leaving the hot water in for about 10 minutes.

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