green19frog t1_j8uj4sw wrote on February 17, 2023 at 1:11 AM Reply to comment by Old-Ranger1405 in Cleaning a thermos bottom from coffee traces "properly". by iBo0m I agree with the hot water. Like really hot water. I have had luck with baking soda and hot water before when letting it sit for hours. Permalink Parent 1
green19frog t1_j8uj4sw wrote
Reply to comment by Old-Ranger1405 in Cleaning a thermos bottom from coffee traces "properly". by iBo0m
I agree with the hot water. Like really hot water. I have had luck with baking soda and hot water before when letting it sit for hours.