Is a 1960's flask safe to use every day?
I've got a 1960's flask. Can it still be used safely?
It's in very good condition with no rust or flaking at all. I've cleaned it well and it seems to be OK.
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My parents have routinely used old flasks for many years with no ill effects.
As the flask is metal / glass both of which can be sterilised I expect it would be fine to use. I recommend you check the seal in the lid which keeps it watertight. If this is rubber it is likely to be degraded and could leak and, as rubber is porous, is a potential hiding place for bacteria etc. There is less risk if the seal is plastic.
Before the first use I would fully immerse the whole flask in a mild bleach solution to sterilise it. Use a baby bottle solution, not household bleach. Follow the instructions on the baby solution and you should be fine.
After every use make sure you wash the flask and dry it out completely before using again the next day. Periodically sterilise it as above to keep any lingering bugs at bay.
This post was sourced from https://outdoors.stackexchange.com/a/11538. It is licensed under CC BY-SA 3.0.
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