By the end of this lesson: you will know when a shallow single-bin setup is the better choice.

A single-bin system is often cheaper and very flexible. It might be a storage box, a tote, a wooden box or another container adapted for worms. The benefit is simplicity. The downside is that harvesting is usually more manual because you do not have trays helping you separate active feeding areas from finished castings. Single bins can work very well, but they need good bedding, good airflow and sensible feeding and usually require some adpation.

Top Tip – A wormery has usually been manufactured for worms.  A plastic tote hasn’t so it will need adjusting correctly.

Single bins are cheap, easy to label and simple to rotate. The downside is harvesting: unless you migrate the worms to one side, you may need to separate them manually. Drainage and ventilation also depend entirely on the design you create.

A single bin is easy to understand and often gives better control over surface area, moisture and population. Shallow, broad bins are particularly useful for breeding because composting worms work mainly in the upper active layer.