Why are beef steaks glowing in rainbow colors?

Why is beef steak shining like this? Anything here?

Recently, a girl posted on her personal Facebook page a picture of a "strange" beef in a bowl of pho bought at the airport. Strange, her steak glistened with rainbow colors.

The "rainbow" piece of beef is being shared violently.

The photo quickly received the attention of netizens, with over a thousand shares and comments. Most people think that the piece of meat has had some problems, like chemical contamination, heavy metals . causing color changes. There are even more scary predictions than stores that have used radioactive cows.

So how is it really bad? Is the beef poisonous or not, and if so, what is toxic? We will know shortly.

Beef steak . nothing

Although there are strange colors, this is still a completely natural phenomenon. According to the US Department of Agriculture (USDA) explanation, beef contains a certain amount of iron and fat in beef.

When light comes into contact with a thin piece of beef, iron and fat will create a phenomenon of light refraction, causing light rays to bend and form a rainbow band.

This phenomenon is very normal in nature.

This phenomenon is similar to seeing a rainbow on the surface of a CD - because light comes into contact with a surface and is refracted again.

Light is exposed to a surface and refracted back.

More specifically, Dr. Thomas Powel - executive director of the American Meat Science Association, said that when slicing a piece of beef, we often cut the muscle lines running in the meat.

This combined with the moisture available in beef creates a perfect surface to create a sparkling meat.

The light shining on the thin piece of meat will be bent, becoming a rainbow.

In addition, there are some special pigments in the flesh, reflecting the sparkling or green light when exposed to heat. These pigments are not only in beef, so it can be said that beef is not the only rainbow-colored meat.

In short, all of the above are just one purpose to show you that rainbow-colored beef is perfectly normal . So don't throw it away and bring a crime to the farmer!