GB-12● Microwave ovens cook food using microwaveenergy that is similar to naturally occurring radiowaves. Normally, these “waves” would fade asthey dispersed into the atmosphere but in amicrowave oven they are concentrated ontofood causing it to heat up.● Microwave energy cannot pass through metal– so it cannot escape from inside yourmicrowave oven – but it can pass throughmaterials like glass, porcelain, plastic and paper.These materials are used in the manufacture ofmicrowave safe cooking equipment.● Microwave safe cooking equipment will still gethot as the food it contains heats up.The microwave energy focuses on the moisture inthe food causing lots of tiny vibrations. Thevibrations get so great that the moisture, and thefood heats up. (Fig 1)checking your cooking utensilsMost heat-resistant, non-metallic cooking utensilsare safe to use in your microwave. If you are notsure if you can use a utensil in your microwave,follow this simple test:1. Put the utensil into the microwave next to acup of water – use a cup that you know ismicrowave-safe. Close the door.2. Turn the microwave on for 30 seconds only.3. After 30 seconds, carefully check to see ifthe water has warmed up.If the water has not warmed up but the utensilhas, the utensil is not microwave-safe andshould not be used in the microwave.4. Do not use your hands to touch the utensilsas it may already be hot.NOTE: Your microwave comes with a microwavesafe grill rack. If you want to use anothergrill rack, please carry out this test toensure that it is microwave safe.1Kenwood K23GSS10_IB_GB_100315.indd 12 3/15/10 4:05 PM