Only freshly cut, disease-free wood should be used. Old or rotting wood should be avoided as it will likely contain contaminant fungi or be too dry to support mushroom growth. Once cut, the sooner you can inoculate the log the better, though you can wait up to 4 weeks after cutting before inoculating the log. When temperatures are consistently below freezing, the inoculation window can be extended for several months by covering freshly cut wood with snow to maintain moisture until you are ready to inoculate in early spring.