I'm not sure; the bags are very sturdy and if you take care of them should last many many rounds.
I let mine air dry.
I am mentally clear this morning... I had a bout of lakkanooky over the weekend but the elixir showed up at my tenants' apartment last night, a pleasant surprise, and gave two thumbs (among other things) up to the hash...
stinkyattic Reviewed by stinkyattic on . Stinky Bubbles oOo.O..ooO.o.Oo.Oo.o.OO.o. Mmmm bubblehash! I I know SOMEONE was wondering whether there was going to be a bathtub involved. Today I got a chance to use a set of bubble bags- a custom 4 bag/5 gallon set, working mesh, 73u, 45u, and 25u. I used 2- 5 gallon pails, about a cubic foot of dried shredded trim loosely packed, 2 bags of ice, and a stiff whisk for agitation. Rating: 5