How to build a worm bin?
Basically you take a container of some kind, with a lid, drill a lot of tiny holes in it for aeration and some on the bottom for drainage. Place this box, bucket, tub, bin, what have you, on a tray, and you have a worm bin. I prefer to use recycled food boxes made of PE or PP plastic. These can be had for free in all sizes and shapes at cafe’s, restaurants and supermarkets. I like a nesting box of design, where one box acts as the worm bin, and the other as a tray (inner is the bin, other is the tray). See the attached drawing. Shallow worm bins and farms work best, with maximum depth of 30 cm (12″). Please also see this perfect thread in the organic foods forum – “How to build a worm bin?”: www.overgrow.com/edge/showthread.ph…
