Why canned meat choose metal cans packaging?
Now metal cans packaging materials are tinplate, tin coating has a strong resistance to corrosion, and ensures
the mechanical strength of steel packaging. Although metallic tin has a strong corrosive, the risk is still etched
high-acid foods, there are reports that some people appeared nausea and vomiting after ingestion of tin
containing a concentration of 200mg / kg of canned food. However, a 2002 study showed that in 1200 tested
metal cans, food tin content of 99.5% lower than the UK national standard defined 200mg / kg, relative to the
previous study, the results of this test than in the past has a very big increase, the researchers concluded that:
the manufacturer of the metal tank painted surfaces approach greatly improves the corrosion resistance of metal
cans, metal cans makes safer in high-acid foods applications.
As for a class of beverage packaging cans are cheaper aluminum skin, aluminum also has high corrosion
resistance, although the strength of the aluminum is poor, but inside the high pressure used to hold
carbonated beverages are just right.
We have not noticed metal cans of thinner skin than canned Coke precisely because of internal high pressure
such that the entire metal tank like a balloon drum up, the use of a tensile force to resist the impact of the metal
skin from the outside world in all directions stress, so they do not like the tank wall as canned done so thick.
Canned interior is negative, in order to prolong food quality, before sealing filling hot food as much as possible
to exclude the air tank, and then sealed. Canned vacuum has two advantages, the first is to reduce the oxygen
content of the tank to reduce the oxidation of food; second lid retraction, once inside the food spoilage
deterioration under the action of anaerobic bacteria produce gas, it will lid drum out to remind consumers not to
If you have need for metal cans, please contact us at your free time.