If you have a Tassimo machine, you should wipe it with a clean cloth once a week. Rinse off any excess liquid and mop up any spills. At least once a month, however, you should also use the coffee ...

If you’re using citric acid you should add about one part to 20 parts water, with a more even 50/50 split if using lemon juice or vinegar – and run the solution through the coffee machine in ...