Biomass pellet fuel can serve its purpose well only if it is oaf high quality and if it complies with the standards. There are many steps that must be followed to ensure that the biomass pellet fuel that is produced is of high quality. Some of these steps include the following:

1. Feedstock grinding:
2. A pellet mill of standard size will generally require ground biomass that has diameter which does not exceed 3 mm in size. There are various types of equipments that are available for the carrying out this important task. If the biomass is dense and quite large e.g. wood, the materials should first be run through a chipper and again through pelletizer or similar device so as to ensure that the particles are required to the desired size. The biomass that is smaller such as straw can be directly fed in to the pellet making machine without being chipped first.
3. Moisture control:
4. Another vital technique of improving the quality of biomass fuel is by controlling its moisture. The maintenance of the ideal levels of moisture in the feedstock is very important in ensuring that the biomass pellet fuel is of general high quality. For the wood, the required feedstock moisture level is close to 15%. The other biomass types have some other requirements that you may have to experiment for a while.

The removal of moisture from feedstock can be done by the blowing of hot air over it, oven drying, or through particles. The quality of feedstock that is too dry can be improved by addition of moisture through injection of steam or water to it.