>More to the point, trying to sterilize a 5l can and make sure there's no baddies left in there would be difficult. I reckon steam cleaning would be necessary.
That does sound tough
>Filling it would be not TOO bad I think - they tend to have a reasonably large aperature at the top - about the size of a 2 euro coin. The only difficulty would be to know when to stop filling - it would gush out quickly....
When the mass increases by a bit less then 5 kilos stop pouring?
A beer supplying robot seems much better then a this though
[img:33hcpezg]http://blog.makezine.com/chassis1.jpg[/img:33hcpezg]
[img:100s1g0e]http://asciimation.co.nz/bender/nobubbling.jpg[/img:100s1g0e]
Except, perhaps, for the tap positioning. Reaching for that would probably have me drinking less beer.
The tins could be tricky to fill, but 5 litres means 10 less bottles to fill. I like the idea of these things and would probably get one but I'm a bit short on space.