I have been looking into composting for those living in apartments in cities with only containers. So far there are not many options apart from communal composting and small wormeries/bokashi bins. Worms are quite delicate creatures and the thought of killing the worms has prevented me from using worm composting. Bokashi bins also need investment in terms of buying the bokashi powder and perhaps also having a wormery to go with it. So having tried the composting using plastic sheeting last year, I thought of another variation.
This consists of taking elements of composting bins and using them differently, utilising my knowledge as an architect. So I took an ordinary plastic pot and have started filling it up with kitchen waste. It is covered up to prevent flies and other vermin from reaching it. But the main thing is it is placed inside the container as shown in the photo on the right. The holes at the bottom of the plastic pot drain into the soil and therefore there is no mess. The nutrients reach where they need to. The soil around the pot keeps it insulated much as a piece of carpet or double walled construction would. At present, as you can see, the plants are loving it and I have had no problem with this. The waste keeps getting compacted automatically and I keep putting new material in. You have to be careful with the balance of dry and wet materials- I found out. Too much wet stuff like apple or pear cores is not good- I balance it out with onion skins, twigs, dry soil etc but this is much easier than using a shop bought composting bin and reuse of the many plastic pots that come free with any plant purchase. Also, so far no cleaning has been involved and no smells! This home made ‘mini composting bin’ has been working well. I hope to report later in spring to see how it all went.