What Are Chicken Drippings?

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A roasted chicken produces flavorful drippings.
A roasted chicken produces flavorful drippings. (Image: Stockbyte/Stockbyte/Getty Images)

Anyone who's ever roasted a chicken has seen the drippings collect in the pan. Some cooks ignore them, others make sauce or gravy with them, and some simply mop them up with a slice of bread and eat them before the chicken ever leaves the kitchen. The drippings are a familiar sight, but most cooks don't really give much thought to how they come about or what they're made of.

The Meat Juices

One significant component of the chicken's drippings is the juices from the meat itself. The chicken's flesh, like that of other animals, is made up largely of moisture and strands of protein. During cooking, the protein strands in the chicken begin to contract. As they do so, they lose part of their ability to bind up water, forcing juices to escape. The longer the chicken is cooked, the more juices escape, which is why an overcooked bird is dry. However, even a properly cooked chicken will shed some moisture while roasting.

Fat

Another major component of the chicken's pan drippings is rendered fat. Commercially raised chickens put on weight quickly, much of it in the form of a layer of fat under the skin and larger deposits elsewhere through their bodies. During roasting this fat melts, or renders out. This is an important part the roasting process, because it moisturizes the meat, crisps the skin and carries flavors throughout the bird. The fat also insulates the meat to some extent, minimizing the loss of moisture during cooking.

Amino Acids and Other Flavor Compounds

One of the most important parts of the drippings is the amino acids that are part of the bird's juices. These are the building blocks of proteins, and when they are heated they undergo a browning process called a Maillard reaction. As they brown, the amino acids in the juices become very complex flavor molecules, providing the savory, rich flavors we associate with roasted meats. The drippings also absorb flavors from any seasonings you've used with the chicken, such as salt, pepper, garlic and herbs.

Gelatin

One further component of the drippings is gelatin, which occurs naturally in the muscles, bones, skin and connective tissues of poultry and other animals. As the bird cooks, its connective tissues are broken down and dissolved by the heat, filling the drippings with natural gelatin. This gives flavor and body to sauces or gravy made from the pan drippings. It's what makes the broth of chicken soup feel rich in your mouth. If you roast several chickens at once, you may have enough drippings left to debone and jelly one of the birds.

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