"Al Reynolds" wrote in message
...
"David Lang" wrote:
Hi All

Why is beer sold in 440 ml cans?

500ml - half a litre I can understand, 568 ml - a pint I can understand,
but 440 ml doesn't convert to anything!

You will think that I am slightly sad for having noticed
this, but on pondering the 13.5% extra free offer on some
beer cans, I realised that:
440ml + 13.6% = 500ml (0.5 litre)
500ml + 13.6% = 568ml (1 pint)

I can't believe this is a coincidence.

It is a remarkable piece of forward planning if it is not a coincidence.
Tennent's lager appeared in 440ml cans in 1955 but 500ml cans marked as
13.5% extra don't seem to have been used before 1989, about a year after
they introduced the 500ml can.

Colin Bignell