In article ,
says...

"Janet" wrote in message
t...
In article ,
says...

You could do it by putting your filled jars in a pressure cooker.
You would need to be certain all parts of the contents were heated
through.

Have you never used a pressure cooker?

You would need to be certain they were cool (unpressurised before opening
the pressure cooker.

Nobody who has ever used a pressure cooker would find it remotely
difficult to depressurise or cool.

So even then a bit dodgy.

Using a pressure cooker is not in the least bit uncertain difficult or
dodgy; just unnecessary in this instance.


http://www.1900s.org.uk/1940s50s-preserving-fruit.htm
http://www.kilnerjar.co.uk/Preserving/guides/how-to-
preserve#.UixMLH8WYuc

Janet

Clearly you are one that needs to be made aware of the dangers.
If you rapidly depressurise a pressure cooker and there is a closed
container inside, the container may explode due to over pressure and/or
thermal shock.

Who said "rapidly depressurise a pressure cooker"?
Take it off the heat. Do nothing. That's how easy it is.
The pressure cooker will depressurise all by itself.

Janet