I have no idea if I'll ever can anything, but I'm intrigued in this method. I think I never bothered before because of the hassle with all the boiling and equipment. Can you give tips on how this works?
So easy! Wash your jars and lids in hot soapy water.
Put on tray.
Start oven (need to not preheat oven as glass may shatter from cold to warm quickly, but minimal risk if washed in hot water) to 350ºF/180ºC. Leave for about 25-40 minutes. Fill hot things into hot jars. Or let cool and fill with cool things. Don't touch insides of lids and jars.
Bob's your uncle.
You can do the same thing with the dishwasher on a hot cycle, just don't touch insides of jars. (But my dishwasher often leaves things wet with the nasty dishwasher water, even after drying, so I don't use this way)
You can also use the microwave! Leave the jars a bit wet after washing and microwave for a minute or so.