Since worms will naturally migrate towards food and I'm not a fan of cleaning out my worm bin, I looked at some commercially available composters and decided I could make one. As the worms eat the food in the bottom bin and move up to the next one, you're left with super compost without the tangled mass of worms.
Step 1: You will need...
-- At least 3 stackable totes with lids. I used shoebox sized Rubbermaid totes but Styrofoam coolers would work too. Consider the amount of scraps your family created in a week to help choose the size of bins. 2 people live in my house and we don't generate much scrap.
-- A drill
-- A large drill bit. I used a 21/64 because that's what I found in the basement.
-- 4 small plastic containers to use as risers. I used small yogurt cups (not shown)
-- Some newspaper, shredded
-- A handful of dirt. For indoor composters, bug free potting soil.
-- Red worms
Step 2: Prepare the bins...
Leave one bin untouched! Rotting foods tend to leak and you'll need something to catch the drips. This water can be used to water plants.
For the rest of the bins: drill as many holes in the bottom of your bins without compromising structural integrity. The holes should be big enough to allow an adult worm to pass through. You may need to get more bins as time goes by. I started with 3 bins and will be upgrading to 6 soon.
Step 3: Using the bins
Put some shredded paper in the bottom of the bin and your bin is now ready to use! I keep an empty bin (with the paper in the bottom of it) under the kitchen sink. When it's full, I add a layer of paper and a bit of dirt and move it to the basement. I also keep one of the spare lids under the bin in the kitchen to catch whatever may slip through the holes. If your bin starts to smell, add more newsprint. Newspaper is very good at absorbing odors.