If the fruit is not covered by a liquid, it may darker during storage (but it does not necessarily mean that it is destroyed, because all the fruits are darkened). To avoid this situation, ensure that the fruit is covered with bubbles removed from the tank liquid while retaining the recommended head space. In addition, be sure to remove trapped air bubbles as described previously.

 

Canned peach, pear and Apple may also show changes in blue, red or pink. This is the result of natural chemical changes that sometimes occur when fruits are heated. It's harmless, it doesn't affect the taste!

 

In addition, avoid storing canned foods near sources of heat, such as stoves, water heaters, hot water or sunny areas. The pot needs to keep cool and longer storage time to prevent corruption. It must be stored in a dry place. If the cover or belt rusts, it will lead to seal fracture.