There is provided a method of processing a foodstuff comprising the steps of: supplying flowable foodstuff into an open package, wherein the package is formed from at least one sheet of material, and an internal shape of the package changes into a predefined internal shape during the supplying of the foodstuff, the internal shape of the package changing toward and finally into the predefined internal shape dictated by one or more structural modifications in the sheet of material that forms the package and the foodstuff within the package, the structural modifications being distinct from any seal of the package sealing the package and at least partially setting the flowable foodstuff to maintain the predefined internal shape.
