Austria invents new ways to improve cans

Attempts to make cans with thinner tinplates are currently unsuccessful because they can easily deform during transport. Austria invented a new method to enhance the compressive capacity of cans by adding some liquid nitrogen to cans filled with food. As liquid nitrogen evaporates, nitrogen can create higher pressure inside the can, which increases the ability of the can to resist impact and impact. There is also an advantage that nitrogen can displace a portion of the oxygen in the can, thus reducing the possibility of deterioration of the food due to oxidation. â—†