Abstract: A package for ingredients comprises a resilient tube which has apertures provided therein. The apertures are held closed by the resilience of the material of the tube and are opened by application of stress in the longitudinal direction of the tube. Aspects of the invention include mounting of the package in a disposable cup for use in the catering industry or supplying a number of such packages each including ingredients for an instant drink for domestic or catering use. In another aspect the invention discloses use of the package in mixing pigment to a base color paint and use of the package in a plant watering or hydroponic culture system.

Abstract: A method of removing haze precursors from wine vinegar and other beverages by passing it through a bed of an ion-exchange resin material in hydrogen form. The resulting clarified wine vinegar is then matured. The resin material is regenerated in situ by sulphuric acid.