Aluminium foil is a ubiquitous helper in kitchens around the world, but one detail of its use is always confusing: Should you wrap food with the shiny or the matt side of the foil?
An article on Den Offentlige sheds light on this aspect and provides a surprisingly simple explanation that many people are unaware of.
The difference between the shiny and matt sides of aluminium foil is not just a matter of appearance.
According to the Danish supplier Cares.dk, which specializes in cleaning products and household items, among other things, the orientation of the foil actually affects heat regulation.
While the shiny side of the film tends to reflect heat, the matt side lets the heat through better. This means that if you turn the shiny side inward, the food will stay warm for longer.
Conversely, the matt side can be turned inwards to allow the food to cool down more quickly, which can slow down bacterial growth.
This insight into aluminium foil is a perfect example of how traditional kitchen gadgets often have more to offer on closer inspection than is apparent at first glance.
It shows that simple physical principles also play a role in the modern kitchen and that a deeper understanding of these principles can help us improve our cooking and food preservation techniques.
- source: dagens.de/picture: hp
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