Sophie Bennett
When cooking chicken, you may notice black stuff oozing out of the meat. This is especially common when cooking chicken drumsticks and thighs, which are considered dark meat due to their higher myoglobin content. The black substance is not blood, as some may assume, but rather bone marrow seeping out of the bones, which can happen when cooking younger chickens with bones that haven't completely hardened. This seepage can also occur when chicken is frozen and then slow-cooked, causing the hemoglobin in the bone marrow to escape and give the meat a darker pigment. While this discoloration may be unappetizing, it is not a health risk and can be reduced by avoiding slow-cooking methods and opting for faster cooking methods like grilling or barbecuing.
| Characteristics | Values |
|---|---|
| Cause | Fluids inside the chicken pieces reaching the boiling point and creating outward pressure |
| Composition | Water or water-based fluids, bone marrow, hemoglobin |
| Colour | Black, maroon |
| Food Safety | Not a health threat, normal occurrence |
| Prevention | Rinse chicken inside and outside before cooking, avoid slow-cooking, precook chicken |
| Other | May be mistaken for blood, but can be due to water absorbed during chilling |
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What You'll Learn
It's likely blood
It's understandable to be concerned about the black substance on your chicken drumstick, and it's important to address food safety and quality. While there can be multiple causes, the black substance you're referring to is likely blood, and here's why: During the butchering and processing of chicken, small blood vessels can be ruptured, leading to the release of blood that gets trapped under the skin or in the muscle tissue. Myoglobin, a protein in muscle cells that stores oxygen and has a reddish-purple color, can also contribute to the discoloration. When exposed to oxygen, both blood and myoglobin can oxidize and turn darker, resulting in the black appearance. This process can occur even if the chicken is thoroughly cooked. It's important to note that while the sight may be unappetizing, small amounts of residual blood are generally considered safe to consume. However, it's always advisable to practice good hygiene and safe handling of raw chicken to minimize any potential risks associated with consumption.
Additionally, it's worth mentioning that the presence of blood or the black substance on your chicken drumstick could be indicative of proper cooking. When chicken is cooked correctly, any bacteria or contaminants, including blood, are eliminated, ensuring the meat is safe to eat. The heat from cooking denatures the proteins in the blood, causing it to solidify and sometimes appear darker in color. This transformation can result in the black substance you've observed, especially if the drumstick has been thoroughly cooked or exposed to high temperatures during the cooking process.
In most cases, the black substance is not cause for concern from a food safety perspective. However, if you're unsure or uncomfortable, it's always best to err on the side of caution. You can take precautionary measures by trimming or removing the affected areas before consumption. Properly cleaning and sanitizing your work surfaces and utensils after handling raw chicken is also essential to prevent cross-contamination. While it's unlikely, if you experience any adverse symptoms or notice any unusual odors or textures, it's best to discard the chicken and avoid consuming it.
To conclude, the black stuff on your chicken drumstick is most likely blood that has undergone oxidation and discoloration. While aesthetically unpleasing, it is usually safe to consume, especially if the chicken has been cooked properly. However, it is entirely reasonable to opt for trimming or removing the affected areas. Maintaining good kitchen hygiene practices and referring to reliable sources for food safety guidelines can help ensure a positive and safe dining experience. Remember, if in doubt, trust your instincts, and don't hesitate to reach out to food safety experts or professionals for further guidance and peace of mind.
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It could be bone marrow
The black stuff that comes out of chicken drumsticks could be bone marrow. Bone marrow is a spongy, soft tissue that fills the cavities of bones and holds cells that create red and white blood cells and platelets, which make whole blood. It comes in two colors, red and yellow. Red bone marrow is located in the spongy tissue at the ends of the bone and produces blood cells, whereas yellow bone marrow is concentrated in the center of the bone and consists mainly of fat cells. The color of red bone marrow is the result of red blood cell production, as it contains high amounts of iron, a mineral crucial for generating blood.
Bone marrow pigment can seep out into the meat next to the bone during thawing and cooking. This could be what happens when chicken drumsticks are cooked, causing the black substance to appear. However, it is important to note that the presence of black substances in chicken drumsticks could also be due to other factors, such as the release of hemoglobin when the bone is cut, or lipid oxidation.
Chicken drumsticks are considered dark meat, and they contain higher caloric content than lighter cuts like the breast. The reddish pigment in the meat turns brown when cooked. It is important to ensure that chicken drumsticks are properly cooked to avoid any potential health risks associated with undercooked meat.
While bone marrow is essential for the body and has important functions, there are also some conditions associated with it. For example, aplastic anemia occurs when the bone marrow doesn't produce enough blood cells, while polycythemia vera results in the body making too many red blood cells, causing thickened blood. Bone marrow aspiration and biopsy are two methods used to test the health of bone marrow and blood cells.
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It might be the umbilical cord
It is possible that the black substance you see on a chicken drumstick is the umbilical cord. This is a black, scabby spot or string found below the vent or "pooper" of the chicken. It is important to distinguish this from pasting, which occurs on the vent itself.
Chicken drumsticks and thighs are considered dark meat due to their higher myoglobin content, resulting from the chicken's frequent use of its legs. When cooked, the reddish pigment turns brown. However, it's important to note that fading to grey or darkening spots on the meat indicate spoilage.
The presence of bone marrow pigment in poultry cuts can also contribute to the black substance. During thawing and cooking, the bone marrow can seep out into the surrounding meat, particularly in frozen chickens. This is more common in younger chickens with less hardened bones. To prevent excessive bone darkening, it is recommended to refrigerate chicken and avoid slow cooking, opting for faster methods like grilling or barbecuing.
Additionally, the black substance could be related to the release of water-based fluids during cooking. As the internal temperature rises, the water reaches its boiling point, creating outward pressure and sometimes oozing out. While this is a normal part of the cooking process, it can be reduced by rinsing the chicken inside and out before cooking.
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It's a sign of spoilage
It's important to be vigilant about the freshness of chicken drumsticks, as they can be a source of foodborne illnesses such as salmonella. While some color changes in raw chicken are normal, others can indicate spoilage. For example, if your chicken has turned grey or has dark spots, it has likely gone bad. Woody white patches on thawed chicken are a sign of freezer burn, while a slimy texture and a foul smell indicate spoilage.
If you notice black goo seeping out of your chicken drumsticks during cooking, it could be a sign that your chicken has spoiled. This black substance is not mold, as some have suggested, but rather the result of fluids inside the chicken—mostly water or water-based fluids—reaching their boiling point and creating outward pressure. While this phenomenon is typical during frying, it can also occur when baking chicken from frozen. In this case, the black goo could be a sign of spoilage, as frozen foods that turn black during cooking may be expired.
To prevent this issue, it is recommended to let frozen chicken thaw before cooking. Pre-bleeding chicken, as is done with Halal chicken, may also help reduce the amount of black goo that appears during cooking. Additionally, removing the veins before cooking may be effective in reducing the oozing of fluids.
However, it's important to note that the black substance is not always a cause for concern. In some cases, it may be the result of bone marrow seeping out of the bones during cooking, especially in younger chickens with bones that haven't completely hardened. This can occur when freezing and then slow cooking the chicken, as porous bones allow hemoglobin, a dark maroon-pigmented protein found in red blood cells, to escape.
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It's a type of mould
It is important to understand the composition of chicken drumsticks to address the presence of black stuff. Chicken drumsticks, categorised as dark meat, originate from the thighs and legs of the chicken. Due to the frequent use of these body parts by the chicken, the meat contains elevated levels of myoglobin, resulting in a reddish pigment. When cooked, this reddish colour typically transforms into a brown shade.
Now, let's delve into the matter of the black substance that emerges from chicken drumsticks. While some people speculate that it could be blood or other organic matter, the more likely explanation is that it is a type of mould. This mould occurs when frozen chicken is left for an extended period, surpassing its expiration date. The black mould is a telltale sign of spoilage, indicating that the chicken is no longer safe for consumption.
To prevent the occurrence of this black mould, it is advisable to avoid freezing chicken for prolonged periods. Instead, opt for fresh chicken and store it in the refrigerator for a day or two to maintain its quality. Additionally, you can consider precooking the chicken through methods such as boiling or microwaving before grilling or barbecuing for rapid cooking.
It is worth noting that the bones of younger chickens, aged between 6 and 8 weeks, tend to darken when cooked. This phenomenon is attributed to the leakage of bone marrow, as the bones have not yet fully hardened. However, this is a natural occurrence and does not pose any health risks, according to food and nutrition specialist Julie Garden-Robinson.
In summary, the black substance observed in chicken drumsticks is likely mould resulting from the spoilage of frozen chicken. To ensure food safety and quality, it is recommended to opt for fresh chicken and practise proper storage and cooking methods.
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Frequently asked questions
The black stuff is caused by fluids inside the chicken reaching their boiling point and creating outward pressure. This is normal and shows that the inside of the chicken is cooking.
The black colour is caused by bone marrow seeping out of the bones during cooking. This is more likely to happen with younger chickens, as their bones are not yet fully hardened.
A slimy texture and foul smell indicate that raw chicken has gone bad. Colour changes to yellow, green, or grey can also indicate spoilage.
