People often think that they can save money by buying larger containers of canned food, transferring the contents (or leftovers from the first use) to smaller jars and re-processing it. Others wonder if this is a way to save leftovers from any size can for a longer time than they will keep in the refrigerator.
There are three main problems with doing this:
- There are no safe tested process to do this. The way heat goes through a jar of already canned food is different than fresh food. The food will become very soft and compact more. This could lead to underprocessing and spoilage.
- There is no cost savings in re-canning foods.
- The food quality will be greatly reduced. Nutrients will be lost and more textural changes will occur.
Bottom line, do not plan to re-can any food.
Source: http://nchfp.uga.edu/questions/FAQ_canning.html#32
