Sometimes a brown residue builds up in the bottom of my electric steam sterilizer. What is it?
After several use, mineral deposits may build up on boiling plate, please decalcify the boiling plate. Put 3-4 tablespoons of vinegar into boiling plate, push start button to boil for approx. 5 minutes. Pour out the surplus and wipe out the deposits with a damp cloth. FARLIN Auto Steam Sterilizers used the stainless boiling plate which is firm and durable, and easier to clean up.