While you might be used to using canned tomatoes for a sweet tomato sauce or savory soup, this pantry staple can be helpful in plenty of other ways too. For example, once roasted in the oven ...

It is especially dangerous when used for canning tomatoes or tomato products where the acid level ... Occasionally people ask about processing jars in the oven. They claim a friend or neighbor ...

Preheat the oven to 190C/375F/Gas 5. Pour boiling water over the plum tomatoes, leave for 10 seconds, carefully remove from the water and refresh in a bowl of cold water. Peel off the tomato skins.