Optimum solution for the acid/basic hydrolysis of food and feed samples prior to solvent extraction for total fat analysis. The HU 6 offers the optimum solution for the acid/basic hydrolysis of food and feed samples prior to solvent extraction for total fat analysis. Very often the samples to be analyzed have a high fat content and need to be prepared for fat extraction. The HU 6 is a 6-position hydrolysis unit that combines safety with performance, reducing manual handling to the minimum. Hydrolysis is carried out with hydrochloric acid for approximately one hour at a temperature of 170 °C. The hydrolyzed sample is then filtered in a glass crucible and washed with warm deionized water in order to eliminate the residues of hydrochloric acid.