Asked July 17, 2016, 11:46 AM EDT

after canning tomatoes the top 1 inch of tomatoes turn dark. jar is sealed. I use a pressure canner. Any suggestions..

Aitkin County Minnesota pressure canning

3 Responses


For information about canning please follow this link to the Food Safety section....

Hope this helps.

your information was not beneficial to my problem. told me nothing as to why tomatoes get dark in upper part of jar.

If you weren't able to find an answer to your question on the Food Safety webpage, then use this link to contact staff in the Food Safety Department...

Also, here is a link to the Food Safety Staff Directory.....

Hope this helps.