70 Gallon Tumbling Compost Bin TumblerRotation is a simple matter, as the Joracomposter is specially constructed for this purpose. Insufficient aeration can lead to unpleasant odors in the compost. The Joracomposter Heat and efficiency. The Joracomposter is well insulated and this allows the temperature to achieve at least 167 degrees Fahrenheit. Using an insulated, rotating composter ensures a more even heat distribution and an active decomposition process throughout the entire volume of