Traditional Culture Encyclopedia - Traditional customs - How long does an insulated dish cover keep food warm?
How long does an insulated dish cover keep food warm?
Using an insulated dish cover will keep a hot meal fresh from the pot warm for three to four hours. Warm meals can stay warm for about two hours.
Insulated dish cover is able to keep warm, the general regular dish cover is basically composed of three layers, the innermost layer is aluminum foil, which can reflect heat rejection, the middle of a layer of pearl cotton sandwich, the surface layer is also plated with a layer of aluminum foil, so the three layers of insulation, it can control the blocking of the dish cover inside and outside of the air convection and heat transfer, so that regardless of the outside of how the air is low, the inside of the heat is also not dispersed. out, to achieve the effect of heat preservation.
So every time we stir fry in winter, as long as the food on the table, and then covered with heat preservation dish cover, the heat inside the food will soon be in the dish cover inside the lock temperature, after the investigation shows that even if the dish into the heat preservation cover for 30 minutes, the temperature will only drop 5-8 degrees.
Methods of meal insulation:
1, with foam box.
Foam box has a thermal insulation, we see some selling box lunch, are using foam box to keep warm.
2, with insulation dish cover insulation.
Markets or online, there are selling thermal insulation dish cover, you can use thermal insulation dish cover, the burned dishes for thermal insulation.
3, with thermal insulation lunch box.
Thermal insulation lunch box, also known as thermos, is the traditional meal insulation supplies, inside the gall bladder, similar to the past thermos, insulation. Now there are also new styles.
4, thermal insulation pot.
Insulation pot, with insulation, is a vacuum stainless steel, similar to our thermos, thermos, currently widely used.
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