How can I clean my stainless steel coffee/teaware?

For external cleaning, we recommend use of the Steelfix Stainless Steel Cleaner, that can be purchased here.
For internal cleaning, we have had success with the following:

• Make up a paste of bicarbonate of soda and smooth this over the stained area, leave overnight and then wash off in the morning.
• Pour enough Coke into the teapot to cover the stained area. Leave for about 30 minutes and then wash the pot as normal.
• Use a Stainless Steel De-scaler. These are usually recommended for kettles but will work just as well with teapots.