With its fast and convenient advantages, microwave ovens have become an indispensable "weapon" in every kitchen, but everything has both good and bad sides. The microwave oven brings convenience and is not absolutely safe to use. In particular, pay attention to the following 9 Taboo.
1. Avoid using metal utensils. The working principle of the microwave oven is to use electromagnetic waves to emit energy to heat the food, and the electromagnetic wave and the metal react, and there is no way to absorb or conduct it, and the food in the metalware cannot be heated.
2. Raw meat thawed in a microwave oven, avoid being placed in the refrigerator for freezing. Because the meat is thawed in the microwave oven, the outer layer has actually been heated at a low temperature, at which temperature the bacteria can reproduce. Even if the freezing can stop the reproduction of the bacteria, the live bacteria cannot be killed. Meat that has been thawed in a microwave oven must be heated to full ripe if it is frozen in the refrigerator.
3. Avoid heating for too long. Microwave ovens use high-frequency heating, which heats up quickly. Too long time will make the food dry, hard, and even produce toxins. Therefore, when using, adjust the time according to the type of food.
4. Avoid placing ordinary plastic containers and plastic bags in a microwave oven. Ordinary plastic containers and plastic bags are not resistant to high temperatures, and heating is easily deformed. In addition, it may release toxic substances at high temperatures, which is harmful to health. Try to choose a special container for high temperature microwave ovens.
5. Avoid heating fried foods. High temperatures can cause oil to splash, may cause an open flame, and cause a fire. If you accidentally cause a fire in the furnace, do not open the door immediately. Turn off the power first, and then open the door after the fire is extinguished.
6. Avoid using closed containers. Steam is generated after the local high temperature generated by the microwave oven, that is, high pressure is generated. Once the closed container is used, blasting may occur. The container with the vent hole is used, even if the food is shelled, the shell is first pierced with chopsticks.
7. Avoid heating the food wrapped in plastic wrap. In the case of high temperature, the plastic wrap will undergo chemical changes, posing a hidden danger to the safety of the food.
Eight. Avoid putting things on the microwave. There is an air outlet above the microwave oven. If it is covered by other items, it will cause the interior to age due to excessive temperature, and a short circuit may occur.
9. When working in a microwave oven, avoid standing around it. In order to reduce the microwave radiation, after the microwave oven is turned on, it is best to keep a distance of at least 1 meter, and the eyes should not stare at it.
A Blind flange is round plate which has all of the relevant boltholes but no center hole, and because of this feature this flange is used to close off the ends of a piping systems and pressure vessel openings. It also permits easy access to the interior of a line or vessel once it has been sealed and must be reopened.
The blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to a line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made.
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