Abstract: A device and method for descaling flow passages of a pod-type beverage machine is provided. The device includes a container having liquid absorbing material and dry powder vinegar contained therein. As the brewing cycle is started, water is injected into the container causing the dry powder vinegar to dissolve into a cleaning solution. At least a portion of the cleaning solution is absorbed by the liquid absorbing material, which retards the flow of the cleaning solution from out of the container. The increased retention time of the cleaning solution within the container improves the cleaning effectiveness.