The invention relates to a device for the preparation of a sample to be analysed, in particular a stool sample, comprising a first container which has a first container opening and forms a receiving chamber for a suspension liquid in which the sample is at least partially contained, a second container which has a second container opening and forms a second receiving chamber, wherein the first container is at least partially receivable or received in the second receiving chamber, and a sample holder for insertion into the first container opening. The invention is characterised in that a liquid outlet is formed in the first container, and in that the first container and the second container are formed such that suspension liquid passes from the first receiving chamber into the second receiving chamber when the first container is moved out of the second receiving chamber. Furthermore, the invention relates to a method for preparing a sample to be analysed.
