I use what was originally called Data Cube,a collapsable plastic bag inside a cardboard container.When filled with any liquid the air can be squeezed out before attaching the cap/spout. These containers are now available with a variety of liquids in them;from wine to orange juice.I find that developer life is extremley long using these containers.They are however only 3.8 ltr containers so I have to use two when mixing Xtol 5 ltr packs.These containers are only usefull when using one shot chemistry as pouring chemicals back in is a pain.(posted 8272 days ago)