Reducing biodegradable waste… using a hot bin

Around a year ago, Cardiff Council seemingly ran out of money and most basic services were cut. There were no bags for compostable waste anywhere for months. I have a pet rabbit, so he gets through a fair amount of sawdust and straw. I had a compost bin, but it was constantly full and it couldn’t possibly process the volume of waste our house was producing, with all the garden waste too. Then a rat moved in to the compost. So I investigated online, and found a HotBin. This is a very well insulated compost bin that allows air to flow freely through the composting material, super-charging the speed that the matter composts down. It also stated the added benefit of being rat-proof, plus it could take all food waste, including cooked meats (which the rest of the household eats).

The price was a major consideration. It would mean buying when I’d promised to reduce consumption. However, I couldn’t bring myself to throw green waste in to the landfill bin, so I took the plunge and ordered one.

A year later, I still think this is the best thing ever. I now dig out the compost from the base every four months and move this to the old compost heap to finish maturing until I need to mulch the garden. (Digging out the hot bin would be a great task for any budding archeologists.) I spent the day yesterday spreading the best compost I have ever made, soft and black and crumbly, with evidence of crushed egg shells and dark brown meat bones as the only sign of food waste.

Setting up the bin was easy, with steam being produced within a few days. My only wish is that I had a greenhouse, as I reckon if this was located inside, the amount of heat this bin produces could keep a winter greenhouse or polytunnel a few degrees warmer to keep salads going for longer. (Although it can smell if it starts to go anaerobic, so it may make the greenhouse a less pleasant place to be. I just use a stick to stir holes through to keep the air flow moving.)

There is more information on the website, HotBincomposting.com

Seeing as my council may soon take all food waste for anaerobic digestion, and garden waste for composting, is it worth having my own waste treatment system? I would say at the moment, definitely. The cost to the council to treat the waste will be at least £35/tonne, but they will be able to generate power from the biogas. When they get the digester started, it may be different. But for now, I get superb compost and no hassles when the council don’t collect the waste.

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