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Ground beef – red outside, gray inside

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June 30, 2019, 11:30 AM
Pipe Smoker
Ground beef – red outside, gray inside
When I break up a package of ground beef, I notice that it’s usually gray on the inside, even though it’s a fresh-looking red on the outside. I asked my butcher about that. He told me that the reason is the lack of air (oxygen) on the inside. I was skeptical, but the article linked below confirms his explanation. I was surprised.

I was unable to copy the relevant paragraph, which is quite a ways down.

“Consumers associate bright red color with high quality …”

https://www.fsis.usda.gov/wps/...to-doneness/ct_index



Serious about crackers
June 30, 2019, 11:32 AM
chellim1
I think they sometimes add a red dye to give it color too...



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June 30, 2019, 11:33 AM
mbinky
I have noticed that on red meat that is vacuum packed. It turns a grey color. Then when you open it and let it sit a bit the color comes back.
June 30, 2019, 11:47 AM
Woodman
quote:
Consumers association



Consumers associate bright red color with high quality (Lynch et al, 1986) and are frequently concerned when ground beef appears red on the outside and brown on the inside. Different levels of oxygenation at different locations inside and on the surface of the meat can account for this coloration (the grinding process allows air to contact more surface area of the meat). If ground beef loses contact with the air, as with the inside of the package of ground beef, it will turn grayish-brown. Likewise, as ground beef is stored, even for as little as one day, it might also turn prematurely brown (USDA-ARS/FSIS, 1998).
June 30, 2019, 11:53 AM
Jim Shugart
Where's Lyman?



When a thing is funny, search it carefully for a hidden truth. - George Bernard Shaw
June 30, 2019, 12:23 PM
sigmonkey
Your ground beef has succumbed to carbon monoxide poisoning.




"the meaning of life, is to give life meaning" Ani Yehudi אני יהודי Le'olam lo shuv לעולם לא שוב!
June 30, 2019, 05:19 PM
Sportshooter
Stay away from that “tallow and tomato juice” stuff and grind you own. That way you’ll know what you’re getting. Smile
June 30, 2019, 07:29 PM
Jager
Some meat departments take older meat and pack fresh meat around it.
June 30, 2019, 07:33 PM
Mars_Attacks
quote:
Originally posted by sigmonkey:
Your ground beef has succumbed to carbon monoxide poisoning.


Yes, the put CO into the package.


____________________________

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