You are a successful worm farmer, your bin has eaten pounds and pounds of kitchen scraps and now it’s full of beautiful finished castings. It’s a foot deep with rich nutrient filled worm cast and you don’t have a clue what to do with it. It’s minus 70 million outside and you haven’t even seen a sprig of green popping out of the 6 foot snow drifts. Do not despair, you can bag those castings.
Vermicast is a living product, think of it as the yogurt of the soil world. Even if the castings seem too wet or unfinished there are plenty of solutions for aging and storing your “black gold”. The first thing you want to do is STOP feeding the bin. The worms will be fine without food for up to two weeks depending on the quality of the existing vermicast. You’ll be able to judge this through simple observation. If there is identifiable food scraps, leave it for an additional week or so. Once the bin has composted everything into cast, use the hostile environment method to harvest. http://www.naturesperfectplantfood.com/2013/08/30/harvesting-worm-castings-from-your-bin/
The castings can now be stored till spring if you do not want to use them for house plants. You treat and store them the same way you would a root vegetable; cool, dark and dry. Find a “breathable” type of bag or leave the top of a heavy-duty plastic one open, the microbial action of the castings will continue and finish up the composting process. By spring you’ll have class A organic fertilizer to wow your neighbors.