Extending
the viability of foods’ resources has a long history, helping communities to
survive periods of shortage. Today, the techniques of food preservation have
evolved but are no less important in conserving the nutritional value of the
food as well as the investment in labour and energy.
Aluminium
foil plays a valuable role in modern preservation and delivery systems thanks
to its unique combination of properties.
Heat
sterilisation using autoclaves has enabled food products to last, in extreme
cases, for years without refrigeration. Even with the trend away from
traditional rigid packaging towards lightweight pouches, such as containers and
laminated cartons, the same preservation performance, without the weight and
transportation demands, is possible.