Ben Elms is an expert compost-maker. But his latest way to create better soil is by adding biochar, made in his new bespoke kiln. Words & images: Ben Elms I first read about the wonders of biochar about 10 years ago, but it was an idea I left smouldering on the back burner while I … Continue reading How Dr Compost Ben Elms makes biochar in a bathtub (and how he uses biochar in the garden)