Hot Composting Temperature

Feed Me - The temperature rises as bacteria consume waste and release heat. It falls a few Working Well - With like for like' waste and other conditions, composting is 64 times faster at 70°C and 32 times faster at 60°C than it is at 10°C. degrees when new 'cold waste is added, rising again as soon as bacteria start to consume the new waste. The HOTBIN needs regular addition of food and waste to maintain a constant 60°C. It would take 6 months in an open heap laverage 10°C) to reach the same stage the HotBin reaches in 7 days at 60°C. 70 60- Top layer temp 50 Y 40 Middle layer temp Bottom layer temp 30- | Ambient temp 20- 10 -10 63 70 77 84 91 14 21 28 35 42 49 56 NOV DEC JAN FEB DAYS The top layer The bottom layer In the HOTBIN the upper 10-20cm of waste is the hottest, typically 50-70°C. As the maturing phase sets in and lignin decomposition starts, less heat is produced and the temperature is marginally above ambient at around 10-20°C. TEMPERATURE "C