Three common sealing methods of tin cans

Tin can be made in addition to tin cover but also tin box.Whatever the product, good seal storage performance is one of the great strengths it, generally there are three kinds of sealing method, whatever the method improving air tightness by isolation of tin box for food contact, we just need to make good use of this principle can be very good use the tin to store items.

1, high temperature heating exhaust, in the packaging of meat class food generally use 80-90 degrees Celsius high temperature in a short time to quickly exhaust the air and seal.For fruits and vegetables, exhaust at 60 to 75 degrees Celsius for a long time until the vacuum is just right.

2, vacuum compressed air, when the food will be sealed in the special vacuum sealing machine, using the pressure in the vacuum will be compressed out of the air tank.Vacuum treatment also avoids microbial residues from bacteria, and it is not limited to food heating, making it one of the most commonly used methods.

3. Steam drives away air. This method can achieve the effect of vacuum by rapidly spraying air into the package into the steam drive tank and condensing the steam in the pipe after the air is exhausted.This method is more economical and convenient, but is limited by the commodity application.