The article presents the analysis of quality properties of briquettes produced of blends of chosen plant raw materials in the plumbing piston of a briquetting machine. The moisture of the raw materials, the length, diameter and mass of the produced briquettes as well as their specific density and mechanical strength were determined. The produced briquettes of blends of agglomerated plant raw materials were characterized by diversified parameters of the studied physical properties. With the increase of camomile waste rate in the briquettes made from applied blends of plant raw materials, their length were reduced about 5–31% and mass about 2–26%, however the specific density increased about 1–8% and mechanical strength about 4–6%. Better parameters of the analysed properties were obtained for the briquettes from sylphium perfoliatum and camomile waste when compared to the briquettes from giant miscanthus and camomile waste.

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