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Beazore t1_ixay6s7 wrote

Hot water bottles expire! The material breaks down and will let far too much heat through - this is usually what causes injury. Check that yours is in date if you use this tip, and replace hot water bottles regularly.

Also, getting just a genuine wool thermal tank top has done wonders for me in keeping warm!

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LightConquersDark_ OP t1_ixe5knf wrote

That's interesting to read. Never seen any "sell by dates" on a hot water bottle, how long would you say they last for before needing to be replaced?

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