When adding additional water, it is important that it is cold. Hot water mixed with the ice will cause the pot to crack or shatter.

When the water becomes too dark for you to see a difference in the stain and/or discoloration, empty the coffee pot and start the process of adding salt, ice, water, and lemon juice to the pot to continue the process. [4] X Research source Continue to swish the mixture in multiple directions. Keep in mind that severe burns will need more time to soak in the solution so be patient and trust the process. [5] X Research source

Alternatively, you can soak it in warm water and dishwashing liquid. [11] X Expert Source Susan StockerGreen Cleaning Expert Expert Interview. 8 November 2019. Then scrub it with a scrubby sponge. [12] X Expert Source Susan StockerGreen Cleaning Expert Expert Interview. 8 November 2019.