Why does aluminium foil fly on an induction cooker
Aluminium foil is made up of aluminium built with reflective
properties and can prevent light, heat and oxygen.
The aluminium foil reflects
the thermal energy back to the food maintaining the freshness of the food
as can be seen in this photo in which it reflects the thermal energy produced
by the induction cooker. For video please click the link at https://www.youtube.com/watch?v=9eQnUEjyCps
Aluminium foil
is not only use in food products for longer storage but it is also put on
windows to keep the house cool during summer and hot during winters. Aluminium
foils should not be packed directly on foods with direct contact but should be
placed a little away from food products so that it can properly reflect back
the thermal energy and keeps the food fresh for a longer duration. We can put
paper between the aluminium foil and food to keep the food fresh longer.
Two layers are usually put together during production
and afterwards separated which produces foil with one bright side and one matte
side. The two sides in contact with each other are matte and the exterior sides
become bright; this is done to reduce tearing. Foil may have a non-stick
coating on only one side. The
reflectivity of bright aluminium foil is 88% while dull embossed foil is about
80%. Aluminiums foil not only
reflect heat but also light energy. Aluminum foil reflects about 95% of the
infrared heat that hits its surface, essentially blocking heat transfer.
Aluminum foil also blocks the flow of radiation, making it useful in preventing
heat loss. When I put on the induction cooker the aluminium foil flies as it reflects
heat and light energy which is produced by the induction cooker. Aluminium foil is 98.5% aluminum with the balance
primarily from iron and silicon to give strength and puncture resistance. Although
aluminium is non-magnetic, it is a good conductor, so even a thin sheet
reflects almost all of an incident electric wave produced by the induction
cooker. In 1910, the first aluminium foil
rolling plant by Dr. Lauber, Neher & Cie. was opened in Emmishofen, Switzerland.
In 1911, Bern-based Tobler began wrapping its chocolate bars in aluminium foil,
including the unique triangular chocolate bar, Toblerone. The first use of aluminium foil in
the United States was in 1913 for wrapping Life Savers, candy bars, and gum.
For video click
