I think pcolbeck's water is soft so limescale is a smaller part of the issue for him.
I use orange squash, 1/3 to 2/3 water, or a "fair bit" of lemon juice with water to clean tea stained mugs. Just leave to soak for an hour.
My only question would be - Why? if it's inside the pots nobody will see it and the hot coffee should kill any germs
Quote from: ElyDave on 20 March, 2019, 01:10:32 pmMy only question would be - Why? if it's inside the pots nobody will see it and the hot coffee should kill any germsTaste.
There's stuff called Puly Caff that'll shift the gunk. Got something like sodium peroxide in it along with standard detergent.