Mia Patel
Chicken is a versatile, nutritious food that's a staple for many households. However, it can spoil, which can affect its taste and texture and, in some cases, make you ill. To tell if raw chicken has gone bad, check the colour, smell, and texture for irregularities. Fresh raw chicken is usually light pink with white pieces of fat, has little to no odour, and is soft and moist. If your chicken is slimy, sticky, tacky, or has a foul smell, these are signs that it has gone bad. If the chicken has been in water, it may smell weird due to spoilage caused by bacteria. However, rinsing chicken with cold water can help eliminate any unpleasant odours.
| Characteristics | Values |
|---|---|
| Smell of raw chicken | Raw chicken has a very mild, meaty, or fleshy smell. |
| Smell of spoiled chicken | Rotten eggs, ammonia, sulfur, or pungent |
| Appearance of raw chicken | Light pink with white fatty pieces |
| Appearance of spoiled chicken | Yellow, green, or gray |
| Texture of raw chicken | Glossy, soft, and moist |
| Texture of spoiled chicken | Slimy, sticky, tacky, or dry |
| Bacteria | Bacteria cause spoilage and can make you ill |
| Storage | Raw chicken should be stored in the fridge for a maximum of 2 days |
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What You'll Learn
Bacteria and spoilage
Bacteria are tiny, simple organisms that live on our food, eat it, and reproduce on it. This process causes changes in the food that make it go "bad". Spoilage refers to the changes that take place in food, causing it to smell bad, feel slimy, change colour, and so on. While spoiled chicken can't make you sick if cooked properly, it's important to know how to identify spoilage and safely store chicken to reduce the risk of illness.
Spoilage is caused by bacteria, but not all bacteria are the same. Specific spoilage organisms (SSOs) initiate the deterioration process, while spoilage-associated organisms (SAOs) represent all bacteria groups found in meat samples before, during, and after spoilage. SSOs are slow-growing bacteria with a low number of tRNA genes in their genome, allowing them to survive and proliferate in raw meat. SAOs, on the other hand, consume glucose, lactic acid, and water-soluble proteins, contributing to spoilage.
Chicken spoilage is influenced by environmental conditions and the interaction of different bacterial groups. Studies have identified Pseudomonas spp., Enterobacteriaceae, B. thermosphacta, lactic acid bacteria (LAB), and Shewanella putrefaciens as potential spoilers of poultry meat. However, the variability in microbial contaminants makes it challenging to definitively identify the spoilage bacteria. Additionally, storage conditions play a role, with low temperatures favouring the growth of certain bacteria, while CO2 has an inhibitory effect on Pseudomonas spp.
To identify spoiled chicken, look for changes in appearance, smell, and texture. Fresh raw chicken should have a light pink colour with white fatty pieces and a mild or no odour. If the chicken has a foul smell, a slimy texture, or has turned yellow, green, or grey, it has likely gone bad and should be discarded. It's important to follow safe storage practices, such as storing fresh chicken in the fridge for no more than 1-2 days or freezing it if not cooked within that time frame.
While cooking chicken thoroughly can kill harmful bacteria, it's important to handle, cook, and store chicken properly to prevent spoilage and reduce the risk of illness.
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How to identify bad chicken
It is important to identify bad chicken to keep yourself and your family safe from foodborne illnesses. Chicken can be contaminated with bacteria that may cause food poisoning. While cooking chicken thoroughly can kill harmful bacteria, it is still important to identify spoiled chicken as it can affect its taste and texture.
Firstly, check the 'best by' date on the package. If the printed date has passed, the quality of the meat may not be great anymore. As a general rule of thumb, if the chicken has a sell-by date, use or freeze it within 3 to 5 days of that date. Uncooked frozen chicken can last about 9 to 12 months in the freezer.
Fresh raw chicken is usually light pink with white pieces of fat. It should be somewhat soft and moist, with a very mild smell or none at all. If the chicken is slimy, sticky, or tacky, it has likely gone bad. If your hands have a slimy residue after touching raw chicken, this is a sign that it has spoiled. Raw chicken can have a somewhat slimy feel to it, but if it remains slimy after being rinsed off and patted dry, it is no longer good. Another test is to press down on the meat. If the flesh is so soft it leaves an imprint, it’s likely bad.
Spoiled chicken may also have a strange and unpleasant smell, sometimes like rotten eggs or ammonia. If it smells sour, throw it out. However, do not rely on smell alone to determine if chicken is safe to eat, as people's sense of smell can vary.
If the flesh of raw chicken is gray, green, or yellow, or if the fat is yellow, this is a sign of spoilage and the chicken should be discarded. However, it is normal if there are mild colour changes in the chicken’s flesh, such as a slight darkening or fading of the pink flesh. This is a normal result of oxymyoglobin, a red protein and pigment, converting to metmyoglobin after being exposed to oxygen. Fresh chicken should be stored in the fridge for a maximum of 1-2 days, and if not cooked within this time, it should be frozen.
Cooked chicken should be white, with no pink pieces of flesh. If you’re storing chicken as leftovers, keep it in the refrigerator at 40°F (4°C) or less, in a sealed container for a maximum of 3 days. Put it in the fridge immediately after cooking or eating. Chicken can spoil if left out at temperatures between 40°F (4°C) to 140°F (60°C) for more than a few hours, as this is a temperature range in which bacteria grows exponentially. If you notice any visible signs of mold growth or colour changes, throw the chicken away.
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Cooking and preparation methods
Chicken that has been in contact with water may smell weird due to spoilage caused by bacteria. While spoilage does not necessarily indicate the presence of harmful bacteria, it is important to handle and cook chicken properly to prevent foodborne illnesses.
Safe Storage:
- Store fresh, raw chicken in the refrigerator and use it within 1-2 days.
- If you don't plan to cook the chicken within this timeframe, freeze it on the same day you purchase it.
- Always check the use-by dates before purchasing and consuming chicken.
Proper Handling:
- Before preparing chicken, inspect it for signs of spoilage, such as a foul smell, slimy texture, or discolouration (yellow, green, or grey).
- If the chicken appears spoiled, discard it.
- When handling raw chicken, ensure proper handwashing and sanitation to prevent cross-contamination.
Adequate Cooking:
- Cook chicken thoroughly to kill any harmful bacteria, such as Salmonella.
- The U.S. Food and Drug Administration (FDA) recommends cooking chicken to an internal temperature of 165 °F (74 °C) for at least 30 seconds.
- Use a food thermometer to ensure the chicken reaches the safe minimum internal temperature.
- For chicken breasts, an ideal temperature of 145 °F will ensure they are tender and juicy while still safe to eat.
Safe Leftovers:
- Refrigerate cooked chicken promptly and consume it within 3-4 days.
- Reheat leftovers to a temperature of at least 165 °F (74 °C) to kill any bacteria that may have grown during storage.
- Avoid leaving cooked chicken at room temperature for extended periods, as bacteria thrive in the "temperature danger zone" of 40 °F (4 °C) to 140 °F (60 °C).
Marinades and Seasonings:
- Be cautious when using marinades and seasonings, as they can mask the signs of spoilage, making it difficult to detect changes in smell or appearance.
- Always store marinated chicken and leftovers in glass containers rather than plastic to prevent unpleasant odours.
Cross-Contamination Prevention:
- Keep raw chicken separate from other foods, especially ready-to-eat items, to avoid cross-contamination.
- Use separate utensils, cutting boards, and storage containers for raw chicken and other ingredients.
Personal Preferences:
- While spoilage bacteria can cause an unpleasant smell, some individuals may be less sensitive to detecting these odours.
- If the smell of chicken is bothersome, consider incorporating strong-flavoured ingredients, such as onions, garlic, or mustard, to mask milder off-flavours.
Remember, proper cooking and handling of chicken are essential to ensure food safety and reduce the risk of foodborne illnesses. Always follow safe food handling practices and consume chicken that is freshly prepared or properly stored.
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Colour, smell and texture irregularities
Colour, smell, and texture irregularities are key indicators of whether chicken has gone bad.
Fresh, raw chicken is typically light pink with white fatty pieces. Spoiled chicken may turn grey, green, or yellow. However, it is normal for raw chicken to exhibit mild colour changes, such as slight darkening or fading of the pink flesh, due to exposure to oxygen. Nevertheless, if the colour change is significant or the chicken has been stored for more than 1-2 days, it is best to discard it.
Regarding smell, fresh chicken should have a very mild or meaty aroma. Bad chicken emits a foul, pungent odour, resembling rotten eggs or sulphur. A sour or fishy smell are also indicators of spoilage. However, it is important to note that people's sense of smell varies, and some individuals may not detect subtle odours.
In terms of texture, fresh raw chicken has a glossy and somewhat soft texture. Spoiled chicken develops a slimy, sticky, or tacky texture. If your hands feel slimy after touching raw chicken, it has likely gone bad. Cooked chicken is firmer and drier than raw chicken. Increased softness, sliminess, or residue on cooked chicken indicates spoilage.
It is crucial to examine the colour, smell, and texture of chicken before consumption to ensure food safety. When in doubt, it is always better to discard the chicken to prevent potential health risks.
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Health implications of spoiled chicken
Consuming spoiled chicken can cause severe health problems. Spoiled chicken is a breeding ground for harmful bacteria like Salmonella and Campylobacter, which can cause food poisoning. Food poisoning can occur just a few hours after consuming contaminated chicken, leading to dangerous dehydration.
Spoilage occurs when bacteria eat the food and excrete waste, causing changes in the food that we recognize as spoilage. These changes include a foul smell, a slimy texture, and changes in color. Fresh, raw chicken should have a light pink color with white fatty pieces, and a very mild smell or none at all. If the chicken has a foul smell, has turned yellow, green, or gray, or feels slimy, it has likely gone bad and should be discarded.
Properly cooking chicken can kill harmful bacteria. The FDA recommends cooking chicken to an internal temperature of 165°F for at least 30 seconds to ensure that any harmful bacteria are killed. However, it's important to note that even properly cooked chicken can still cause food poisoning if the bacteria have left behind harmful chemicals.
To reduce the risk of illness, it's important to follow safe storage practices for chicken. Raw chicken should be stored in the fridge for no more than 1-2 days, and leftovers should be refrigerated at 40°F (4°C) or less for no more than 3-4 days. Chicken should be frozen if it is not going to be cooked within this timeframe.
In summary, spoiled chicken can cause severe health issues, including food poisoning and dehydration. To prevent consuming spoiled chicken, it's important to check for signs of spoilage, such as foul smell, discolouration, and slimy texture, and to follow safe storage and cooking practices.
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Frequently asked questions
Fresh raw chicken is usually light pink with white pieces of fat. If the flesh is grey, green, or yellow, or if the fat is yellow, this is a sign of spoilage. Raw chicken should also have a very mild smell or none at all. If your chicken has a very apparent smell, such as a sour or sulfur-like smell similar to rotten eggs, it has likely gone bad.
Bacteria cause chicken to go bad. Bacteria eat food and excrete waste, causing changes in the food that we recognize as spoilage.
Fresh chicken should be stored in the fridge for 1-2 days. If it is not cooked within that time, it should be frozen.
If your chicken smells weird, it has likely gone bad and should be discarded. However, you can try rinsing the chicken under cold water or soaking it in a bowl of cold water with some vinegar and salt to get rid of the smell.
It is not recommended to cook chicken that smells weird as it has likely gone bad and could make you ill. However, cooking chicken that has gone bad will not necessarily hurt you, but you would be eating smelly chicken.
