If your staining is from the hard water in your area, you may also need to descale your soup maker. To do this, you can clean with vinegar. Simply fill your soup maker with some white vinegar and ...

Fill your kettle halfway with equal parts white vinegar and water. The amount of vinegar you'll need depends on your kettle's size. For a standard 1-liter kettle, mix ¼ cup of vinegar with ¾ cup of ...