Which is better, aluminum alloy pressure cooker or stainless steel?

See what harm aluminum alloy pressure cooker has? In recent years, due to the propaganda of aluminum poisoning, many people are worried that aluminum in aluminum alloy will escape when using pressure cooker, which is harmful to human body. Does aluminum really dissolve in soup when cooking? There is a very dense oxide film on the surface of aluminum alloy pressure cooker. Although the thickness of this film is not large, it is in the range of 10-20 microns, but its hardness is relatively high. As long as bamboo and plastic spatula are used, the alumina film will not be destroyed. Let's look at aluminum alloy pressure cookers and stainless steel.

What is the material of the pressure cooker? The pressure cooker is mainly made of stainless steel and aluminum alloy.

It can be subdivided into four categories:

1, Germany 18/ 10 stainless steel, the representative brands are wmf and Fishler.

2.SUS304 stainless steel (slightly lower than the grade of 18/ 10) represents the brands Supor, Asda and Shuangxi.

3. The purity of ordinary domestic 304 stainless steel is lower than that of ordinary second-line brand SUS304.

4. Aluminum alloy material, and the quality of Mn-Ti-Al alloy pressure cookers produced during Shenyang Shuangxi 08- 1 1 is basically the same as that of domestic 304, followed by aluminum alloy materials of various brands. More+.

What are the product types/characteristics of pressure cookers? Advantages and disadvantages Service life (1 day 1 hour) Ordinary aluminum alloy pressure cookers are light in weight, fast in heat transfer, cheap in price, and can be quickly cooled with cold water. Stainless steel composite aluminum alloy pressure cooker is not suitable for induction cooker for about 8 years. They have the advantages of ordinary aluminum alloy pressure cookers and are suitable for induction cookers. When used in open flame, avoid the fire source and cool it quickly for about 8 years. Stainless steel pressure cooker is heat-resistant and beautiful, and it is not easy to react with acid, alkali and salt in food around 10 years old. The electric pressure cooker has low working pressure and heat preservation function, and the inner cooker can be disassembled and replaced. Can be intelligently controlled without worrying about cooking food. Expensive, it takes too long to cook for about five years. What material is good for buying aluminum pressure cookers?

Ordinary pressure cookers are aluminum pot (including aluminum alloy) and aluminum pressure cookers, which can hold rice and other foods that are neither acid nor alkali nor salty for a long time (but not recommended). But the acid resistance, alkali resistance and salt resistance are not very good, because the surface layer is alumina, which reacts with acid, alkali and salt in food, and most foods are slightly acidic and salty, so it is usually best not to hold food for a long time.

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Stainless steel pressure cookers are heavier and brighter than aluminum ones, and are more acid, alkali and salt resistant. However, stainless steel is good and bad. Type 340 is poor in acid and alkali resistance, type 304 is in the middle, and types 3 16 and 3 16L are very acid and alkali resistant. So, if you know that you bought a 3 16L stainless steel pressure cooker, you can hold any food for a long time, but if you are not sure about the model of stainless steel, it is better to shorten the time as much as possible! More+.

Selected stainless steel pressure cookers recommend WMF Futenbao Germany imported stainless steel pressure cookers, induction cookers, gas universal pressure cookers11August sales: 85+ stores WMF Futenbao flagship store >> Supor pressure cookers 304 stainless steel pressure cookers, 20CM gas cookers, induction cookers, ordinary sales in March: 2 1+ stores Supor Walker specialty stores > & Gt domestic 6L high-speed fast cooker 304 stainless steel pressure cooker of FISHEX Germany 1380 Store FISHEX official flagship store >> Is the aluminum alloy pressure cooker poisonous? Anodic oxidation should be carried out after the aluminum alloy pressure cooker is formed, so that a very dense oxide film is formed on the surface of the aluminum alloy. Although the thickness of this film is not large, it is in the range of 10-20 microns, but its hardness is relatively high. As long as bamboo and plastic spatula are used, the alumina film will not be destroyed. With a metal shovel with a smooth end, as long as you don't scrape hard, the problem is not big, and it won't cause aluminum to dissolve or fall off. Even if this oxide film is destroyed, we learned that aluminum has a chemical property in middle school. Aluminum is an extremely active element, which will be oxidized immediately in the air to form a hard alumina film, thus protecting the aluminum body from further oxidation and playing a good protective role. In this way, under normal circumstances, aluminum ions run out very little. You can use it safely. Therefore, as long as food (especially sour, alkaline and salty food) is not stored in aluminum pot for too long, aluminum ions will not escape from the food, which has little impact on health.

Pay attention to the use of aluminum pressure cooker. In the process of use, to prevent the corrosive effect of chemicals on aluminum, we should pay attention to the following aspects:

1, do not use in foods with caustic soda and strong acidity.

Don't use it for a long time to cook foods and soups with high salt content.

3. Wash and dry immediately after use to prevent food and soup from staying in the pot for too long.

4. When not in use, try to put it in a dry place without excessive smoke.

5. Once you accidentally burn the pot, don't scrape or shovel hard.

6, choose a pressure cooker, it is best to go to a big supermarket to choose a brand.

Pressure cooker 1 frequently asked questions. What is the principle of pressure cooker?

The principle of pressure cooker is simple, because the boiling point of water is affected by air pressure. The higher the air pressure, the higher the boiling point. On mountains and plateaus, the air pressure is lower than 1 atmospheric pressure, and water can boil below 100℃. Eggs are not cooked in ordinary pots and pans. When the air pressure is greater than 1 atmospheric pressure, water will boil only when it is higher than 100℃. The pressure cooker commonly used by people is designed by using this principle. The water in the pressure cooker is closed tightly, so the water vapor generated by water evaporation can't diffuse into the air, and only stays in the pressure cooker, which makes the pressure in the pressure cooker higher than 1 atmospheric pressure, and also makes the water boil above 100℃, thus forming a high-temperature and high-pressure environment in the pressure cooker, and the rice is easy to cook quickly and is quite crisp. More+.

2. What is the pressure of the domestic pressure cooker?

The pressure of the pressure cooker is determined according to the weight of the gland and the strength of the spring, which is generally 0.5-0.8 kg.

If the pressure in the pot increases, the temperature will also increase, so when the pressure in the pressure cooker is 0.56 kg/cm2 = 0.55 Pascal, the boiling temperature of water is112.6℃; If the pressure is 1 kg/cm2 = 0.98 Pascal, the boiling temperature of water can reach 120- 12 1℃. More+.

3. What is the temperature of the domestic pressure cooker?

The operating temperature of domestic pressure cooker is about 1 10 ~ 120℃, and the maximum temperature cannot exceed this temperature, otherwise the automatic exhaust valve will open, and it is unsafe to exceed this temperature.

4. Is autoclaving useful?

Because the temperature of the domestic pressure cooker can be above 100 degrees, it can also play a role in disinfection and sterilization. But not all viruses can be killed, because some viruses are inactivated at low temperature. Sterilize with boiling water, and the heating time should be 5 ~ 65438 05 minutes. When this condition is reached, most harmful bacteria can be killed. More+.

What brand of pressure cooker is a good industry recommendation brand Supor Shuangxi Electric ASDZwilling founder Fissler Fissler Lagostina Lagottini WMF Futengbao UKK Shunda SND Shunfa recommended reading 0 1 Is the aluminum pressure cooker poisonous? What are the hazards of aluminum alloy pressure cooker or stainless steel? In recent years, due to the propaganda of aluminum poisoning, many people are worried that aluminum in aluminum alloy of pressure cooker will run out. ...

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