Bags are the largest containers available in UrW. They cannot be made unless modding is used, but can be purchased from people or shops (filled with grains/salt). You get an empty bag after using all of the salt/grain in a bag of salt/grain.
Bags can hold up to 12 Lbs of a fluid, which makes them the best (though most unrealistic) choice if you wish to milk an animal as milking fills the container, meaning you get quite a bit more than if you would have used a bowl or cup. This makes them quite valuable, and considering that much travelling must be made to get them, should be kept safe and not used to club a squirrel out of a tree.
Various Bags that are sold in Villages[]
Bag of Salt
A bag of salt, which is 12 lbs, can thus preserve 120 cuts of meat. A bag of salt is very expensive, though (for example I bought one for 15x "Käpälälauta"-fox_traps ). (unverified from Salted_food page)
Bag of Rye
Variant of bag mod entry is shown below:
.Bag. *COMMON* /25/ [patch:5]
{Cloth} #1.0# [remove] [patchwise]
{Tying equipment} [remove] [patchwise]
{Knife}