Read more worm factory reviews. The Worm Factory advertises that: the worms will migrate upwards as food sources are exhausted. So you won’t have to separate the worms when the lowest bin is ready.
This never worked out for me. The worms were perfectly happy to stay in the lowest level. The worms were in every level but they never all migrated upwards to the food source. Or they went downwards to the bottom where the leachate collects.
So when the lowest tray of vermicompost was finished there was always a big job of separating the worms from the vermicompost.
Here is a review on Amazon where the customer had a similar experience to mine. Also other things didn’t work out so well for this reviewer:
. . . Although the worms are SUPPOSED to migrate upward, I found most of my worms in the very bottom trays where it stays very wet. The trays that were supposed to have the fewest worms always had the most. The compost created by the worms is very wet and messy and nothing like what they advertise. That’s ok, I just don’t appreciate being mislead. And, unless you have massive — and I mean massive — numbers of worms, the composting doesn’t go as fast as they claim. A 5 pound bucket of worms won’t compost even 2 or 3 stacked bins as fast as they claim.
I have since started my own very inexpensive home-made bins and I don’t bother with the half bin stuff. I use inexpensive Sterlite bins with some air holes and drain holes poked through or drilled. . .
You can continue reading this review at Amazon Review on Worm Factory
So with my experiences with the Worm Factory I wanted to go back to worm bin composting with my Worm Friendly Habitat. You could really use any plastic or wooden container. You don’t have to buy a Worm Friendly Habitat. It is just a plastic bin with ventilation. I sold my Worm Factory on Craigslist. I kept two of my Worm Factory Composter Extra Trays for worm separation (see picture to the right)because they work in an excellent way along with a bright grow light and tantalizing food choices in the new tray to get the worms out of finished worm compost. See my blog post on How to Separate the Worms from the Vermicompost.