I've been raising them for about 8 years,I use a clear med size tote with a hinged lid.I cut a 2"x 4" hole in the lid and hot glued a piece of mesh screen over the hole to keep out spiders,and allow air in.I use wheat bran for bedding and food,every 2 weeks I halve a med potato for food and moisture.
I also place a couple opened cardboard egg cartons on top the bran and potatoes ( inside facing down ), this allows the worms to seperate and not bunch up,( prevents them from eating their own eggs as much ). Every summer I sift the worms,and beetles from the castings (bran poop ) and put them in new bedding.
Keep the castings for a few weeks,there are copious amounts of eggs left in the Sifted poop,once they hatch,simply add them to the newly sifted ones from a few weeks earlier.This all may sound laborious,but it really only takes about an hour or so once a year,the rest of the time,just keep some fresh bran for them ,and some sort of water source ( the potato ).I keep mine in a warm location,and they actually prefer darkness if possible.
There are several ways to raise them,find what works for you,even a caveman can do it.