Method for supplying foodstuff samples for microbiological testing

Method for supplying a foodstuff sample for microbiological testing, comprising supplying the sample in a plastic bag, adding physiological nutrient solution to the sample in the plastic bag in a specified weight ratio, mechanically comminuting and homogenizing the contents of the bag, removing a partial quantity of the contents of the bag by means of a pipette via a filter as sample liquid, injecting the sample liquid onto at least one nutrient medium situated in a petri dish, and inserting the injected petri dish into an incubator;

• said method further comprising, in the comminution and homogenization of the contents of the bag, clamping the plastic bag shut and pressing the plastic bag between a fixed jaw and two jaws which oscillate alternately;
• in the injection of the nutrient medium, injecting the sample liquid out in a spiral shape onto the nutrient medium;
• employing a laboratory robot system including a laboratory robot to carry out all handling processes by means of a mechanical hand;
• and controlling the robot and all participating laboratory apparatus with a control unit programmed according to a sequence of examination.