The present invention relates to processes for the preparation of a batch of an active pharmaceutical ingredient, e.g. an allergen product. The invention also relates to a container comprising cryogranules of a liquid composition of an allergen product, and to a cryogranule of an allergen product. The processes feature formation of cryogranules using a container having therein a cryogenic medium (e.g. liquid nitrogen) and storage of the cryogranules in the same container. The cryogranules obtained can be stored and handled without prior freeze-drying.
