Just had a query from someone in our facebook group looking for a blog I did ages ago about our “soil factory”. I couldn’t find it either (how do you just lose a blog entry??!!) so I posted up a few pictures in the facebook group with a quick description. For the sake of posterity here are the pics:
Just like any other raised bed, but reserved only for producing soil! Saves you thinking about where to dig down your next Bokashi bucket, just keep digging them down here and fill the wheelbarrow with good healthy soil when you need it. Add whatever else you have at hand, wood chips, straw, harvest leftovers. Not weeds! I generally cover mine with a big black tarp to keep seeds blowing in and preserve moisture. Breathes enough and helps warm the soil. You can do this in any shape or size, it doesn’t have to be this big!
btw we found out it’s easier to build these big boxes on a flat surface (driveway?) upside down then tip them right side up and carry them into place. It’s really hard to get them straight and nice if you build them on site.