The invention relates to a sprinkling apparatus (1) comprising:conveying means (3) defining a surface (P) for advancing containers (2) along a main direction (X) anda flow distribution element (4) arranged above the surface (P) and fluidly connectable with a source of a heat transfer medium at a given temperaturethe flow distribution element (4) comprising a plate (5) and side walls (6) and defining a channel (7) adapted to be flown along by a flow of heat transfer medium the plate (5) having a plurality of openings (8) such that through them at least a portion of the flow of heat transfer medium is directed to sprinkle over the containers (2) as they advance along the main direction (X) the openings (8) of the flow distribution element (4) being arranged in parallel rows extending along a direction (Y) forming, with the main direction (X), an angle (α) less than 90°.
