Twisting apparatus (10) comprising a loading device (20) intended to load a food product inside a casing (21) and a braking device (12), wherein the loading device (20) comprises a filling assembly (14, 19, 22) in which a feeding path of the food product is defined. The filling assembly (14, 19, 22) is intended to support the casing (21). An inlet conduit (31) is also provided for feeding the food product into the filling assembly (14, 19, 22). The filling assembly (14, 19, 22) includes a passage duct (22). The inlet conduit (31) is structurally separate from said passage duct (22) of the filling assembly (14, 19, 22) and is situated on one side of said passage duct (22). The filling assembly (14, 19, 22) is adapted to assume at least one first operative position in which the filling assembly (14, 19, 22) is connected to the braking device (12) and said inlet conduit (31) is in fluid communication with said passage duct (22) and a second operative position in which the filling assembly (14) is linearly displaced in a spaced relationship or detached from the braking device (12), the passage duct (22) in said second operative position closing or interrupting the fluid communication with the inlet conduit.
