en Causes of damage32]Causes of damageCausesofdamage Caution!■ Rough pot and pan bases scratch the ceramic.■ Avoid boiling pots dry. This may cause damage.■ Never place hot pots or pans on the control panel,the display area or the surround. This may causedamage.■ Damage can occur if hard or pointed objects fall onthe hob.■ Aluminium foil and plastic containers melt on hothotplates. Oven protective foil is not suitable for yourhob.OverviewYou will find the most frequently caused damage in thefollowing table.7Environmental protectionEnvironmentalprotection In this section, you can find information about savingenergy and disposing of the appliance.Energy-saving tips■ Always place suitable lids on saucepans. Whencooking without a lid, considerably more energy isrequired. A glass lid means that you can see insidewithout having to lift the lid.■ Use pots and pans with even bases. Uneven basesincrease energy consumption.■ The diameter of pot and pan bases should be thesame size as the hotplate. In particular, smallsaucepans on the hotplate cause energy losses.Please note: cookware manufacturers often indicatethe upper diameter of the saucepan. This is usuallybigger than the diameter of the base of the pan.■ Use a small saucepan for small quantities. A larger,less full saucepan requires a lot of energy.■ Cook with only a little water. This will save energy.Vitamins and minerals in vegetables are preserved.■ Always cover as large an area of the hotplate aspossible with your saucepan.■ Switch to a lower heat setting in good time.■ Select a suitable ongoing cooking setting. You willwaste energy by using an ongoing cooking settingwhich is too high.■ Use the residual heat of the hob. For longer cookingtimes, you can switch the hotplate off 5-10 minutesbefore the end of the cooking time.Environmentally-friendly disposalDispose of packaging in an environmentally-friendlymanner.Damage Cause MeasureStains Boiled over food Remove boiled over food imme-diately with a glass scraper.Unsuitable clean-ing agentsOnly use cleaning agents thatare suitable for glass ceramic.Scratches Salt, sugar andsandDo not use the hob as a worksurface or storage space.Rough pot andpan basesscratch theceramic.Check your cookware.Discolouration Unsuitable clean-ing agentsOnly use cleaning agents thatare suitable for glass ceramic.Pan abrasion (e.g.aluminium)Lift pots and pans when movingthem.Blisters Sugar, food with ahigh sugar con-tentRemove boiled over food imme-diately with a glass scraper. This appliance is labelled in accordance withEuropean Directive 2012/19/EU concerningused electrical and electronic appliances(waste electrical and electronic equipment -WEEE). The guideline determines theframework for the return and recycling of usedappliances as applicable throughout the EU.