I suspect you’re not far enough up North to benefit from the method of composting I’ve just posted on my blog but this guy was absolutely determined to keep his composting going all year round – despite the freezing temperatures and large snowfall. Of course in Britain its not really worth going to all this effort to keep composting going but you could put an extra layer of insulation around your bin just to keep things moving a long. Composting slows down as the cold weather arrives because the creatures that do the composting become less productive or lay dormant completely. But in Britain this period of total inactivity is not as long as in Canada and other really cold places. Its ok just to keep adding to your bin until it is full. Once the composting creatures get active again they will have plenty of material to work on.