Degassing device (21) for systems for treatment of food products (12) such as leaf vegetables, tuberous, fruit of meet, cheeses or sausages, and like, characterized in that it comprises - a degassing conduct (22) for a food product (12) treatment fluid, said degassing conduct (22) having, in sequence along its development trajectory, an inclined inlet tract (23), within which said flow fluid rises, a degassing tract (24), and an outlet tract (25), within which said flow is directed downward and - a degassing chamber (27), in correspondence of said degassing tract (24) said degassing tract (24) having, at least on its upper wall (24a), a plurality of holes (26) suitable to communicate said degassing tract (24) with said degassing tract (27) to permit exit of air bubbles trapped within said flow from said degassing chamber (27), preventing exit of food products (12).
