cask shelf life tests

[Brewberosa]

I woud like to do some cask shelf life tests and am looking for ideas. I remember a brewery that took 10l/20l and put them in to plastic polypins but do not know where to get them. Are there any other ways beside taping otherwise merchantable beer?

[dick murton]

Murphy's in Nottingham do them
Lovebrewing, chesterfield & Liverpool also do them or wine boxes instead