Abstract: Installation permitting the rapid chilling of products stored, in particular, inside a bottle (5), consisting of a tank (1) arranged within an insulating chamber, and which contains a liquid (3) maintained at very low temperature by means of a chilling circuit (2), the products (5) to be cooled being held in the chilling medium by means of pockets (4) which descend into the chilling fluid and inside which are arranged the products to be cooled. It is defined in that the pocket or pockets (4) is or are in the form of an envelope open at its upper part (6) with a base consisting of a flexible, leaktight plastic film, and retained along their open zone at the upper part (7) of the chamber (1), and the closed base (8) of which is associated with means enabling it to be displaced from the open upper part (6) to a position near the bottom (9) of the chamber, and vice versa.