Of course, as with conventional fuel, biofuel’s quality is very important. However, we must be aware that in contrast to some conventional fuels (e.g. wood), there are strict requirements of the quality standards, regulations and procedures that determine the marketing of biofuels and their widespread use. It guarantees very high quality and safety of the fuel purchased to the buyers. Before the biofueal is used in our fireplace, it undergoes a series of tests and examinations conducted by qualified specialists. Unfortunately, in the case of conventional fuels we have no such certainty, because the supervision process of the suppliers is much more random here, and if left uncontrolled.