Safety and Maintenance Tips for Microwave

Microwaves are almost indispensable in modern kitchens. But which foods and materials are allowed to go in and which substances can be really dangerous? Almost all foods can be easily heated in microwaves. However, there are exceptions that you should not warm up with a microwave.

Eggs, chestnuts and bread are not allowed

For instance, eggs and chestnuts are not suitable for this device. They can explode. With chestnuts, this can take some time, but especially eggs burst after a few moments and would leave a complete mess in your appliance. Bread rolls cannot explode, but it makes more sense to use the oven because they would not be enjoyable after heating in the microwave. On the outside, they become extremely hard and dry, on the inside only lukewarm at best and of a pulpy consistency.

Microwave Safety

Can I heat metal in microwaves?

It is a common misconception that any metal in microwaves is basically taboo. Basically, thicker objects only become very hot, which is why it makes little sense to heat them up in this way. What you should definitely note: Thin metal layers are completely unsuitable. In the worst case, aluminum foil, metallic decorations on dishes or gold edges of plates can even melt. Other materials that cannot be heated in the microwave are plastic and polystyrene. By the way: pieces of metal that have an unsuitable geometry (forks, for example) or those that are placed too close to the wall of the cooking space can cause arcing. Here too, it’s better not to try it out!


And what about fat?

Fat in the microwave? Better not! Never come up with the idea of heating oil or frying fat in a microwave! Both can ignite in your appliance. And since oil and fat fires cannot simply be extinguished with water, in the worst case, there would be a lot more on fire in a very short time than just the kitchen appliance.

Which vessels to use

The dish you put the food in the microwave is important. With plastics, it is very important that they are microwave-resistant and do not warm up in the microwave. Homo-polypropylene can withstand a temperature of up to 120° C. You can even heat polybutylene terephthalate and polysulfone up to 160° C. Polyetherimide and polyethersulfone can even withstand temperatures up to 200° C. However, the best is liquid crystal polymer, which you can heat up to 230° C. Only put plastic in the microwave that has received the OK from the manufacturer. Porcelain plates can also be put in the microwave. However, not all porcelain is suitable for the microwave. This also applies to glass: it can only be put in the microwave if the manufacturer says so.

How To Maintain Your Microwave

Apart from getting microwave insurance, there are various ways to maintain your microwave. Reheated food from a dirty microwave? Not very tasty! Even though cleaning the microwave is a nuisance, there are some useful tricks that will save you time and money. By the way, you don’t have to clean the microwave with chemical clubs. With helpful home remedies, you can get rid of incrustations and bad smells easily.

Cleaning your microwave with home remedies

One way of cleaning your microwave is with detergent. Put a little detergent in a bowl with water and let the whole thing boil briefly in the microwave and then let it rest. The food residue can then be easily wiped away with a damp cloth or rag. Alternatively, vinegar water can be heated in a vessel in the microwave, and the microwave can then be wiped out with a dishcloth. If you don’t like the smell of vinegar, you can alternatively use a lemon. Simply slice a lemon and place it in a bowl or in a plate with water and heat for a short time at the highest setting. The evaporated lemon water not only removes unpleasant smells, but dirt can also be easily removed with a cloth. By the way, lemon juice is also a miracle cure for cleaning ceramic hob.


The right place for your microwave

 Sometimes there are problems with the location of the microwave. There is a lack of space in many kitchens, and microwaves generate a lot of waste heat. You have to pay a lot of attention to where you can set up the microwave. Microwaves are not always built the same way. As a rule, most of the free-standing units emit the waste heat to the sides, which is where the most space and distance from other units is required. Microwaves with a grill often require a lot of space upwards. The manufacturer specifies the dimensions for sufficient safety distances. They must be strictly adhered to and must never be undercut, as otherwise there is a risk of overheating (damage to the microwave) and even fire.


Built-in microwaves can be installed in the corresponding installation shafts in the kitchen since the ventilation of the microwave is specially designed for this. Of course, you should also make sure that you reach the microwave comfortably (ideally, you can easily reach it while standing). It is best to take this into account when planning the kitchen.

Use the right dishes

Use heat-resistant dishes to heat food in the microwave. Nevertheless, take care when removing: the dishes can get hot due to the rays. There’s an easy test to see if you can use your dishes: Place the empty dishes together with a cup of water in the microwave (the microwave must not run empty; otherwise damage can occur) at 600 watts for half a minute. If it stays cold or only slightly warms up, you can use it without hesitation. Crockery that gets hot, however, has no place in the microwave.

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