From Canning Homemade

As the canning community grows the need for new and educational post are so important. With all the information available to a newbie regarding canning on the web I am writing the list of the “do not can” ingredients and foods. Some of the listed ingredients are safe in other ways such as pumpkin is not safe to can mashed or as a pumpkin butter, but you can put up cubed pumpkin in a pressure canner.

What you are “able” to put into jars is a much longer canning list than those you can’t so for any additions to the list below I will continue to update as I find or research either the ones that I missed or ingredients that have changed their “status”.

Reasons for not using the products below:
For Fats and Dairy these products will go rancid and develop bacteria within your jar if left unrefrigerated and mixed in with other ingredients to form a recipe. … read more here