It is for the very basic reason that you put food in them or that you use them directly in cooking your food. Therefore, it only follows that their cleanliness are ensured. In the same case, the turntable should also be maintained clean. It is important that it is dirt-free and unsoiled so no bacteria will find their home in it. In fact, there was a study that came into the undeniable conclusion that up to 97% of the nutrients in foods can be destroyed through the process of microwave heating. In 1991, there was a tragic and well-documented case involving a hip surgery patient, Norma Levitt, who has undergone blood transfusion and has died due to the microwave heating of the blood that was supposed to save her life. The best advice probably is to set a time limit that does not exceed more than 2 minutes when boiling water. Stay Away From Microwave Radiations The Food and Drug Administration (FDA) monitors each and every microwave oven that are being sent out for commercial use to ensure that the amount of radiation they emit are far below the level that is known to harm people. How about if you are usually rushing in the morning or when you normally get home late at night? Of course you need something that is too convenient to use. And so having been regarded as a trusted cooking device, you should likewise know how it is to maintain its good condition. You don't just use it. Meanwhile, the built-in type is mounted into the cabinetry and is more expensive because it allows you to cook and grill. Most of this kind needs an exhaust fan. Its capacity. Depending on your purpose, choose the appropriate capacity of your microwave. If you prefer cooking large meals, then, you should buy a larger one. The best thing to do is to keep it in medium heat and just prolong the time of cooking so that the heat would be gradually distributed in all parts of the meat. Also, you can rotate your food once in a while to prevent the occurrence of cold spots. Reheating If a food has already been cooked and will just be reheated, remember to put it in a covering or a container that is microwave-friendly.