For light soiling. Place approx. 400 ml of water and a little washing-up liquid in the cooking chamber and select the cleaning program. The environmentally friendly cleaning system softens burnt-in residues so that they can then be wiped off much more easily bT Round, 1090057 was ordered from us and sent by us to a customer. After receiving it, the customer decided on a different set and returned it to us. The berbel exhaust air set ECO I 150 bT round, 1090057 is unused and in perfect new condition; this was only inspected by the customer and sent back to us. Of course, all accessories are complete. The guarantee is 60 months.