The Trangia bottles are very strong plastic and the safety pourer makes refilling very easy so well worth getting, stopp faffing about and buy one or two, come in different sizes, shop around for the best price these are money well spent.
http://www.amazon.co.uk/s/ref=nb_sb_noss_1?url=search-alias%3Doutdoor&field-keywords=trangia+fuel+bottle I've used nothing else for years now and not just for meths, paraffin and naptha too without problem.
What he said right tool for the right job. I use a 300ml triangia meths bottle