FoodReference.com (since 1999)
COOKING TIPS AND HINTS SECTION
Home | Articles | Food Trivia | Today in Food History | Food Timeline | Recipes | COOKING_TIPS | Videos | Food Quotes | Who’s Who | Culinary Schools & Tours | Food_Trivia_Quizzes | Food Poems | Free Magazines | Food Festivals and Events
Cooking and Kitchen Tips and Hints, Measurements, Shopping Advice, Serving Ideas, etc.
You are here > Home >
and other Publications
An extensive selection of free magazines and other publications
What causes iridescent colors on meats?
Meat contains iron, fat, and other compounds. When light hits a slice of meat, it splits into colors like a rainbow. There are various pigments in meat compounds that can give it an iridescent or greenish cast when exposed to heat and processing. Wrapping the meat in airtight packages and storing it away from light will help prevent this situation. Iridescence does not represent decreased quality or safety of the meat.
Why is pre-packaged ground beef red on the outside and sometimes dull, grayish-brown inside?
Oxygen from the air reacts with meat pigments to form a bright red color which is usually seen on the surface of meat purchased in the supermarket. The pigment responsible for the red color in meat is oxymyoglobin, a substance found in all warm-blooded animals. Fresh cut meat is purplish in color. The interior of the meat may be grayish brown due to lack of oxygen. If all the meat in the package has turned grey or brown, it may be beginning to spoil.
USDA Food Safety and Inspection Service www.fsis.usda.gov
Please feel free to link to any pages of FoodReference.com from your website.
For permission to use any of this content please E-mail: [email protected]
All contents are copyright © 1990 - 2020 James T. Ehler and www.FoodReference.com unless otherwise noted.
All rights reserved. You may copy and use portions of this website for non-commercial, personal use only.
Any other use of these materials without prior written authorization is not very nice and violates the copyright.
Please take the time to request permission.