The present invention relates to a machine for heat exchange with a product including a vat, with a first end, a second end and an outer surface, for containing the product to be treated, a shaft, at least one element for heating or cooling a product and for being coupled in the shaft and at least one scraper blade. The machine for heat exchange with a product additionally includes a plurality of separators configured to be coupled in the shaft, at least one separator being located between two contiguous elements. Between two contiguous elements there may be located inner scraper blades anchored in structures fixed to the shaft of the machine at their ends, which in their rotation movement will scrape the outer surfaces of the elements and separators. Additionally, outer scraper blades may be arranged between the structures and the vat to scrape the inner surface of said vat.
