Are WCT composts and mulches free from weeds and plant propagules?

Yes, they are. Pasteurisation is the treatment phase of composting during which the number of plant and animal pathogens (disease-causing organisms) and plant pests and propagules (viable plant materials or seeds) are significantly reduced. The entire mass of organic waste inside our tunnels is exposed to temperatures higher than 65oC for more than 3 consecutive days to guarantee the elimination of plant propagules. For each batch of feedstock composted at the facility, we meet approved methods by recording temperature and moisture content and maintaining and retaining these records as proof that pasteurisation was achieved.