Bins and piles measuring one cubic yard or greater can sustain active composting temperatures independent of ambient temperatures, provided the initial recipe is optimal.
M. A. King, K. A. Matassa, G. MacDonald, M. S. Clark, A. Cariddi, M. Huitt and R. Burgess
BioCycle October 2012, Vol. 53, No. 10, p. 37
Tags: Winter composting