Milk, cream and yoghurts packaged in sterile cartons makes it possible to preserve their intrinsic properties, without refrigeration, due to a very thin layer of aluminium foil. These long-life packs are impervious to light, odour and gases, while at the same time providing a crucial barrier to light and oxygen and the preservation of essential vitamins. Such aseptic cartons are lightweight and designed for efficient transportation, storage and on-shelf display. Most importantly, without the need for refrigeration due to the alufoil layer, considerable savings in energy resources along the supply chain can be achieved.
As a robust and non-corrosive material, aluminium foil has played a keyrole in the packaging of dairy products. Alufoil helps to retain essential quality, condition and taste until the moment of use.
More detailed information about the LCA of "Butter" and "Yoghurt" can be found here.
The packaging requirements of cheeses vary according to their individual characteristics. Not all cheeses benefit from being wrapped in an impervious, light and moisture-proof material and some require gas permeability for successful ripening.
As well as reducing the nutritional value of a dairy product such as butter or a vegetable fat, photo-oxidation caused by UV light spoils flavour and appearance. An alufoil wrapper stops this damage. Also, the extra feel and look of quality that a laminated foil/paper wrap brings to the pack ensures outstanding shelf display.