Take it from the people at Reynolds. They make the stuff. They will tell you that it makes no difference which side is in or out.
According to the description on the TV show "Modern Marvels", two "sheets" of aluminum are pulled through the pressing machine and rollers at the same time. The "sheet" started off as a solid block, but as it is pulled through rollers, the "sheet" becomes longer and narrower (several miles long). As the two thinner sheets are pulled along together, the outside of both sheets (one on the bottom, one on the top) are exposed more and longer to heat and to the lubricant coolant liquid that Reynolds sprays on the product as it goes through the rollers. The opposite side of each sheet, unexposed, takes a "matte" or un-shiny appearance. They then take the top sheet to one set of rollers above, the bottom sheet to a roller below and "separate" the 2 sheets from each other and make them into 2 rolls. The two rolls are then sent to the processing/packing plant where they are separately cut into the standard length and width and boxed for sale.
The Reynolds Company states that for cooking or freezing, it makes no difference whether the matte side or the shiny side is out. Optical light scatters differently from the dull side than from the shiny side, which is more like a mirror. But both sides absorb or reflect light (and infrared radiation) equally.
The myth that the shiny side must be out started shortly after the product was first manufactured, according to Reynolds.
Psychologically, the myth may have more to do with human attraction to all things shiny.
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The shiny side should go on the inside. Here's why:
The shiny side is shiny because it is more reflective of light. While light reflectivity doesn't necessarily tell you how well something can reflect things like gamma rays, light and heat are relatively close on the electro-magnetic spectrum, so you can generally assume that heat and light will be reflected in the same way by a certain material.
In the case of cooking foil, if you put the less-reflective side outward, it will absorb more heat than the shiny side would have. Additionally, the shiny side will help heat build up under the foil.
A similar example can be found in the reflective silver safety blankets found in first aid kits. While both sides are reflective, the warming property comes from body heat reflecting inside the blanket. The outside shininess might help with visibility in emergencies, but doesn't help you get warmer.
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Your answer is incorrect acording to Reynolds Co.
I called them last year with this same question and was told that using either side of the foil will yield the exact same results. The only reason for a shinny side and a dull side is because of the way that the manufacturing process works and that is it.
A. The study of how energy and matter interact in the physical world.
A chalkboard has matte surface, which is non-reflective and not shiny.
A dull surface is often referred to as matte or flat.
Matte surface is typically found on materials like paper, chalkboard paint, or some electronic displays (e.g., matte monitors, matte screen protectors). It does not have a glossy or shiny finish and helps reduce glare or reflections.
Matte surfaces have a non-reflective finish, appearing dull and not shiny. They do not produce a glare or reflection of light, unlike glossy or shiny surfaces.
Matte in Hebrew is מטJewish Aramaic uses the same alphabet as Hebrew, so it would be the same in Aramaic.
Beats by Dr. Dre Solo HD's come in: -Matte Light Blue -Matte Blue -Matte Purple -Matte Pink -Matte Green -Matte Teal -Matte Black -Matte White -Matte Red -Futura - Atom - Artist Series Note: Not all colors available in every country
The opposite of shiny is matte or dull.
Fabiola Matte's birth name is Fabiola Matte Larran.
You may say '[Chotto] Matte kudasai,' or more informally, 'chotto matte,' or simply 'matte.'
Tom Matte is 6'.
Lucien Matte was born in 1907.
Lucien Matte died in 1975.
Terry Matte died in 2009.
Magdalena Matte was born in 1950.
A. The study of how energy and matter interact in the physical world.
The two main classifications of matte are matte coated paper and matte uncoated paper. Matte coated paper has a smooth, non-shiny finish due to a coating applied to the surface, while matte uncoated paper has a rougher texture with a flat finish and no coating. Matte coated paper is better for vibrant color printing, while matte uncoated paper is more absorbent and better for writing or drawing.