Why Is Aluminum Foil Shiny On One Side
Olivia Luz
So which side of the foil do we need to be using.
The reason happens to be a simple one. Or shiny side inwards if wrapping say a joint of meat. The foil is milled in layers. Sorry to disappoint but the two different sides are just the result of the manufacturing process.
This is because the shiny side is more reflective and so will reflect more of the radiant heat than the duller side. It is difficult to produce rollers with a gap fine enough to cope with the foil gauge therefore for the final pass two sheets are rolled at the same time doubling the thickness of the gauge at entry to the rollers. If these layers were not brought into contact with each other during the production process the foil would break. The answer you ask.
In the final rolling step two layers of foil are passed through the rolling mill at the. The reason aluminum foil or tin foil as we sometimes inaccurately call it has a flat side and a shiny side has everything to do with the way it is produced. Since aluminum foil has a shiny side and a dull side many cooking resources say that when cooking foods wrapped or covered with aluminum foil the shiny side should be down facing the food and the dull side up. According to the aluminum.
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Where the foil is in contact with another layer that s the dull side reynold s explains. Most people do it wrong and have shiny side outside. If there s no trick to it then why exactly does aluminum foil have a shiny and a dull side in the first place. These slabs are then pressed between rollers many many times to make them thinner and thinner.
Aluminium foil has a shiny side and a matte side. The shiny side is the side milled without being in contact with another sheet of metal. Aluminium foil should always be used shiny side up say when cooking on top of it ie a pizza or saussage rolls.
Source : pinterest.com