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  • I've used a stainless Thermos daily for a couple of years and its insides are encrusted in coffee and it smells of old milk. My cleaning routine is a quick soak in the wup bowl, rinse, turn upside down. Should I be cleaning more thoroughly (for health reasons)?

  • Once you get it clean, I find a silicone spatula useful for getting off day to day residue in combination with dish soap

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