Your home canned tomatoes in jars have a white film on them?

Natural Substance: The white film on your home-canned tomatoes may be a naturally occurring substance called tyrosine or calcium phosphate. These substances are released during the canning process and can form a harmless, chalky layer on the tomatoes.

Spoilage: Another possibility is that the tomatoes have spoiled due to improper canning practices, allowing for bacterial growth. Check for any off-odors, abnormal texture, or signs of mold. If you suspect spoilage, discard the jars immediately.

Hard Water: If you used hard water during the canning process, it may contain high levels of minerals like calcium and magnesium, which can react with the tomatoes and form a white film. Using filtered or distilled water can help prevent this issue.

Air Bubbles: If there were air bubbles trapped inside the jars during canning, they can rise to the surface and create a white film. This is generally not a safety concern, but it can affect the appearance of the tomatoes.

To ensure the safety of your home-canned tomatoes, follow recommended canning guidelines, maintain proper hygiene during the process, and check for any signs of spoilage.