Abstract: The present invention relates to a method (300) for reducing an amount of microorganisms in brewers spent grains (BSG). The method (300) comprises feeding (S305) a liquid (120) and the BSG (110) into a mixing arrangement (130), mixing (S310), by means of the mixing arrangement (130), the liquid (120) and the BSG to form a mixture, feeding (S330) the mixture into a heat exchanger (140), and heating (S335), by means of the heat exchanger (140), the mixture for a predetermined period of time at a predetermined temperature such that the amount of microorganisms in the BSG (110) is reduced.

Abstract: The invention relates to a method and an apparatus for recovering energy in the hot-fill of a liquid food product. The product is heat treated in a first section (5) of a heat exchanger (4) and is held at this temperature during a certain time interval. The temperature of the product is adapted to the hot-fill temperature in a second section (8) of the heat exchanger (4). The product is hot-filled in a filling machine (10) and the product surplus from the filling machine (10) is cooled in a fourth section (15) of the heat exchanger (4). The product surplus is finally cooled in a third section (12) of the heat exchanger (4) and recycled to production.