John Weston wrote:

In article , "Terry Fields"
wrote:

wrote:

My dad told me they were issued with self-heating tins of food after
the D day landings. Always curious how they worked.

The tins had a pull-tab (IIRC) on the lid, which when activated
started a small pyrotechnic charge in a tube that ran through the
centre of the tin. It took about five minutes to burn through to the
bottom, leaving a nice hot meal.

Some I've used had a piercing pin that punctured a membrane between
water and quicklime (AFAICR) in a tin that surrounded a smaller inner
tin containing the food. Worked extremly well but limited choice of
contents.

Found it - http://www.hotcan.com/

--
John W
To mail me replace the obvious with co.uk twice

Thanks!. Sounds like the technology aligns with the period .
(He'd mentioned something about sticking a bayonet in to start 'em
off.)