Abstract: The present invention relates to a machine for heat exchange with a product, comprising: a tubular recipient internally housing the product, where the tubular recipient comprises a cross-section comprising a U-shaped geometry; at least one thermal device for heating or cooling the product, where said at least one thermal element comprises an inflow duct and an outflow duct for a heat transfer fluid; and at least one scraper blade inside the tubular recipient and configured for entraining the product inside said tubular recipient; which allows accelerating the product heating or cooling time as a result of a great improvement in the heat transfer; as well as simplifying the design of the components forming part the machine object of the invention.