The hob must be cleaned after each use. Do not use abrasive sponges or scouring pads. Their use, over time, may ruin the glass. Do not use chemical irritants, such as oven sprays or stain removers. After each use, leave the hob to cool and clean it to remove deposits and stains caused by food residue. Sugar or food with a high sugar content damage the hob and must be removed immediately. Salt, sugar and sand may scratch the glass surface. Use a soft cloth, absorbent kitchen paper or products specifically for cleaning the hob. Do not use steam jet cleaners. If liquids accidentally or excessively leak out of the pots, the drain valve located on the lower part of the product can be opened so as to remove any residue and be able to clean in conditions of maximum hygiene. For cleaning, simply use a cloth moistened with neutral liquid detergents. Do not use cleaning tools or instruments. Avoid the use of products containing abrasive components and do not use alcohol.