As with all metal, microwave energycan not pass through foil, but providedthat you keep the foil away from theside of the oven it will not cause sparksand there will not be any damage toyour oven.Using foil is a good way of shieldingparts of food that you do not want tocook as quickly as others – perhapswhere the food is narrower andwould otherwise overcook.Place the foil over the area you wantto shield, taking care that the foilwill not touch the sides of the ovenwhen the turntable rotates. Only useone piece of foil at a time so that youdo not get sparks between the separatepieces.Follow these guidelines when usingfoil in your microwave:Remove foil lids from containersbefore using in the microwave.Some lids are made of cardwith a foil covering – theseshould be removed too.Use a microwave-safetransparent lid if possible.Stir food during cooking if thecontainer has a lid or filmcover.Always use the glass turntable.Use shallow containers with alarge surface area. Do not usecontainers that are more than1.25in (3.5cm) deep.Use oven gloves when handlinghot foil containers.Do not completely cover foodwith foil. The microwave energycannot pass through the foil sothe food will not cook.Do not let aluminium foil touchthe inside of the oven.Do not use more than one pieceof foil in the oven at the sametime.Using aluminium foil in yourmicrowaveIt is safe to use aluminium foil in your microwave oven as long as you follow these safety guidelines.27Using aluminium foil