Winter composting with a tumbler
Since early November I have been depositing food scraps and other greens and browns into my compost tumbler. It is about full. When the outside night time temp is above freezing for several days I rotate the tumbler. Is the material breaking down during these colder weeks? Does turning in winter aid decomposition? If I stop adding material, in spring will I be ahead of schedule more than if I simply suspended the process til warmer weather? In other words, what microbial activity takes place when daytime temps average 40's and nights drop into the low-mid 20's about 50% of the nights? I'm new at composting and charged up for the springtime.