What are the types of plastic crisper boxes
1. Plastic PP material
Non-toxic, tasteless, low density , strength, stiffness, hardness and heat resistance are better than low pressure polyethylene, can be used at about 100 degrees, has good electrical properties and high frequency insulation not affected by humidity, density 0.90-0.91, high heat resistance, toughness and resistance Chemical corrosion is very good. One of the most commonly used food plastic products. Disadvantages: brittle at low temperature, not wear-resistant, easy to age.
2. Plastic PET material
Milky white or light yellow, highly crystalline polymer with smooth and shiny surface. It has excellent physical and mechanical properties in a wide temperature range. Heat-resistant to 70°C, it is only suitable for warm or frozen drinks, and it is easy to deform when loaded with high-temperature liquids or heated. Such as mineral water bottles, so do not take mineral water bottles for hot water.
3. Plastic PC material
An amorphous thermoplastic resin with excellent comprehensive properties, excellent electrical insulation, extensibility and dimensional stability It also has the advantages of self-extinguishing, flame retardant, non-toxic and colorable. Disadvantages: The disadvantage is that compared with metal, the hardness is insufficient, the appearance is more likely to be scratched, and the PC glue releases bisphenol A when heated, so pay special attention when using this plastic container. Many drinking glasses and feeding bottles use this material.
Can the plastic crisper be heated in the microwave?
1. The plastic crisper can be heated in the microwave, but it is necessary to control the time and temperature. And do not seal the fresh-keeping box when heating it in the microwave oven. The sealed fresh-keeping box is easily deformed when heated again. Correctly heating the food in the fresh-keeping box ensures the health of the family and the service life of the fresh-keeping box.
2. The heating time of the plastic crisper should not be very long each time, not more than 2 minutes and 20 seconds, because the heating time will be shortened a lot when the lid is closed. If you want to heat for a longer time, you need to leave a gap in the lid. The crisper is usually very tight. If you heat enough steam, the lid will expand until it collapses.
3. Remind everyone that it is best not to use plastic utensils for microwave heating. If the temperature exceeds 140 degrees, the PP material will release harmful substances. But this degree is difficult to grasp. If there is oil in the heated food, it will easily exceed 140 degrees.
4. The general PC fresh-keeping box can also be put into the microwave oven. PC is an amorphous, odorless, non-toxic, highly transparent colorless or slightly yellow thermoplastic engineering plastic with excellent Physical and mechanical properties, especially excellent impact resistance, high tensile strength, flexural strength, compressive strength; small creep, dimensional stability; good heat resistance and low temperature resistance, with a wide temperature range Stable mechanical properties, dimensional stability, electrical properties and flame retardancy, can be used for a long time at -60 ~ 120 ℃; no obvious melting point, in a molten state at 220-230 ℃.
How to use plastic crisper correctly
1. Try not to microwave it
Ordinary Generally, the highest temperature of plastic fresh-keeping box can only withstand 120 ℃, and it is easy to deform when heated in a microwave oven. It is best to use a special box for microwave heating, especially for foods containing more oil and sugar. When placing in the microwave, the lid engagement mechanism must be released before use. If the lid is locked and used, the crisper may deform or burst due to pressure. When used in a microwave oven, if the food contains a lot of oil and sugar, the crisper will be deformed when the temperature rises rapidly.
2. Don’t rush to open
Take out the crisper from the freezer, don’t open it right away, leave it at room temperature for 1 to 2 minutes before opening it would be better.
3. Not all foods can be placed
Foaming or fermented foods, as well as carbonated beverages will reduce the sealing ability of the crisper and even lose it , so try not to put it in the crisper. This is also true of food that is too hot, and it is best to cool it before adding it.
4. Don’t keep it for too long
Even if you put it in the crisper and then put it in the refrigerator, it is not a panacea. The time of food preservation is different. Relying on the sealing ability of the crisper, it is better to eat it as soon as possible.
5. Don’t rely too much on the fresh-keeping function
The storage time of different foods is different, don’t simply rely on the sealing ability of the fresh-keeping box, and eat it as soon as possible .
Declare: The above methods are derived from the program system index or shared by netizens. They are for your reference only and do not represent the research views of this website. sex and authority.
