Jake Harper
Reheating chicken and turkey can often result in a strange taste and texture. This phenomenon is called warmed-over flavor (WOF) and is caused by the oxidative decomposition of lipids (fatty substances) in the meat, which creates chemicals with an unpleasant taste and odor. The taste is often described as stale, rancid, or like cardboard. WOF is more noticeable in chicken and turkey due to their higher amounts of polyunsaturated fatty acids compared to other meats. While reheating meat is perfectly safe, the strange taste can be minimized by using sauces, herbs, and specific reheating methods.
| Characteristics | Values |
|---|---|
| Phenomenon | Warmed-over flavor (WOF) |
| Cause | Oxidative decomposition of lipids (fatty substances) into chemicals (short-chain aldehydes or ketones) with an unpleasant taste or odor |
| Aiding factors | Release of naturally occurring iron in the meat during cooking or mechanical grinding |
| Tasting notes | Rancid, stale, cardboard-like, damp dog hair |
| Impact | Deterioration of flavor and texture |
| Susceptible meats | Poultry, pork, and fish due to higher amounts of polyunsaturated fatty acids |
| Prevention methods | Use of sauces, herbs, and spices with antioxidant compounds; proper reheating and storage; eating soon after cooking |
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What You'll Learn
- Reheating chicken and turkey causes a change in flavour and texture
- This phenomenon is called warmed-over flavour (WOF)
- WOF is caused by oxidative decomposition of lipids and fats in the meat
- Chicken and turkey are more susceptible to WOF than other meats
- Strategies to reduce WOF include using sauces, herbs, and specific reheating methods
Reheating chicken and turkey causes a change in flavour and texture
Meats with higher proportions of unsaturated fatty acids, such as poultry and pork, are more susceptible to WOF than beef or lamb. Chicken, in particular, undergoes noticeable changes in flavour and texture after being refrigerated and reheated, even within a short period of a few days. The deterioration of flavour and texture is attributed to exposure to oxygen, which affects the polyunsaturated fatty acids in the meat.
To minimise the impact of WOF, certain strategies can be employed. Using a sauce, such as a curry, can act as a barrier to air and help mask the off-flavours. Additionally, herbs like rosemary and oregano, which have antioxidant properties, can be added to the sauce to protect against the oxidation of polyunsaturated fatty acids. Proper reheating methods can also make a difference, with reheating sous vide resulting in the lowest degree of WOF, followed by reheating in an oven.
While WOF does not pose any safety risks, it can be unpleasant and undesirable. It is important to note that the changes in flavour and texture are not limited to chicken and turkey but can occur with other meats and dishes as well, although they may be more noticeable with poultry.
To summarise, reheating chicken and turkey can lead to a change in flavour and texture due to the oxidative decomposition of lipids and the presence of iron catalysts. This results in the formation of chemicals with unpleasant tastes and odours, leading to the characteristic WOF. By understanding the causes and employing certain strategies, such as using sauces and herbs, the impact of WOF can be minimised.
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This phenomenon is called warmed-over flavour (WOF)
The process of oxidation is aided by the release of naturally occurring iron in the meat, specifically iron from iron-containing proteins such as myoglobin and hemoglobin. The free iron acts as a catalyst for oxidation reactions, which break down some of the fats in the meat to form primary oxidation products. These primary products are not responsible for the objectionable taste but further decompose into secondary oxidation products, including alcohols, acids, ketones, lactones, and unsaturated hydrocarbons, which produce the characteristic WOF.
The taste of WOF has been described as "rancid," "stale," "cardboard-like," and even comparable to "damp dog hair." It is worth noting that WOF is not a food safety issue and will not make you sick, but it can significantly impact the dining experience. The intensity of WOF can vary depending on the method of reheating, with reheating sous vide resulting in the lowest degree of WOF, followed by reheating in an oven.
To minimise the impact of WOF, certain strategies can be employed, such as using sauces or herbs with antioxidant properties, proper storage methods, and reheating the meat using the same method it was initially cooked with. While these strategies may help, the formation of WOF is challenging to prevent entirely, and it remains a significant concern in the processed food industry.
Overall, the development of WOF in reheated chicken and turkey is a complex chemical process involving oxidation and the decomposition of fatty substances, resulting in an unpleasant taste and odour that detracts from the dining experience.
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WOF is caused by oxidative decomposition of lipids and fats in the meat
Reheating leftover chicken or turkey can sometimes result in an unpleasant taste known as warmed-over flavour (WOF). This phenomenon is caused by the oxidative decomposition of lipids (fatty substances) in the meat. Specifically, the lipids, primarily from the cell membranes of cells in the meat, are attacked by oxygen, which leads to the formation of chemicals with an unpleasant taste or odour. These chemicals, known as short-chain aldehydes or ketones, are the primary oxidation products and are not directly responsible for the objectionable taste. However, they further decompose into secondary oxidation products, including alcohols, acids, ketones, lactones, and unsaturated hydrocarbons, which produce the distinctive WOF.
Lipid oxidation in meat is a complex process that involves multiple mechanisms and interactions between substrates and catalysts. It is one of the most important degradation processes affecting meat constituents, along with microbial deterioration. This process begins after cooking or processing and is accelerated by the release of naturally occurring iron in the meat, specifically heme and non-heme iron. The iron acts as a catalyst, promoting oxidation reactions that break down the fats in the meat.
The formation of these secondary oxidation products can be influenced by various factors. For example, the presence of metals, particularly metal ions, can mediate the decomposition of hydroperoxides, which are primary oxidation products. Additionally, the interaction between two hydroperoxides can also initiate the formation of secondary oxidation products.
The development of WOF can be minimised through different strategies such as animal dietary supplements, the addition of antioxidants, and processing techniques. For instance, grape seed extracts contain high levels of antioxidants and have been shown to effectively reduce lipid oxidation in both raw and cooked meat. Other natural antioxidants, such as herbs like oregano, rosemary, sage, and thyme, also exhibit significant antioxidant capacity.
While it may be challenging to completely eliminate WOF, understanding the underlying lipid oxidation mechanisms and employing appropriate strategies can help mitigate its intensity and preserve the sensory and nutritional quality of meat products.
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Chicken and turkey are more susceptible to WOF than other meats
Reheating leftover chicken or turkey often results in a deterioration of both flavour and texture. This phenomenon is known as "warmed-over flavour" or WOF, and it can make the meat taste "stale", "rancid", or even like "cardboard". While it is not a food safety issue, WOF can be off-putting enough that people choose to discard their leftovers.
WOF is caused by the oxidative decomposition of lipids (fatty substances) in the meat, which creates chemicals with unpleasant tastes and odours. Specifically, the process involves the breakdown of fats into primary oxidation products, which then further decompose into secondary oxidation products, including alcohols, acids, ketones, lactones, and unsaturated hydrocarbons. These compounds have strong odours and can be tasted at very low concentrations.
To minimise WOF in chicken and turkey, there are several strategies that can be employed:
- Use herbs and spices with antioxidant compounds, such as rosemary and oregano, to protect against oxidation.
- Reheat the meat using the same method it was originally cooked with, such as tossing roasted turkey back in the oven. Avoid reheating in the microwave, as this can exacerbate WOF.
- Serve the meat with a punchy sauce, such as a curry, to mask any WOF flavours.
- Use low-permeability plastic wraps to cover the meat and eliminate air pockets in the packaging to minimise oxygen exposure.
- Eat the leftovers as soon as possible, as WOF becomes more noticeable after 24 hours of refrigeration.
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Strategies to reduce WOF include using sauces, herbs, and specific reheating methods
Reheated chicken and turkey can sometimes taste unpleasant due to a phenomenon called warmed-over flavour (WOF). This is caused by the oxidative decomposition of lipids (fatty substances) in the meat, which creates chemicals with an unpleasant taste and odour.
There are several strategies that can be employed to reduce the WOF in reheated chicken and turkey:
Using sauces
Punchy sauces with strong flavours and antioxidants can help mask the WOF taste when reheating chicken or turkey leftovers. However, it's important to note that sauces may not completely eliminate the WOF taste, especially in larger, intact pieces of meat.
Using herbs
Sprinkling herbs like rosemary and tarragon on reheated chicken or turkey can help reduce the perception of WOF. Herbs provide additional flavours that can help mask the unpleasant taste of WOF.
Specific reheating methods
The method of reheating can also impact the intensity of WOF. Reheating leftover chicken or turkey sous vide results in the lowest degree of WOF, followed by reheating in an oven. Reheating in a microwave tends to produce more WOF. Additionally, ensuring that the meat is thoroughly browned before reheating can help mitigate the perception of WOF.
While these strategies can help reduce WOF, it is challenging to completely eliminate the phenomenon. The best way to avoid WOF is to avoid leftovers altogether and opt for freshly cooked meat.
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Frequently asked questions
Reheated chicken often tastes funny due to a phenomenon known as "warmed-over flavor" (WOF), caused by the oxidative decomposition of lipids (fatty substances) in the meat, which leads to the formation of chemicals with an unpleasant taste and odor.
To prevent WOF, you can use sauces with antioxidant compounds, such as rosemary and oregano, as they protect against the oxidation of polyunsaturated fatty acids. Additionally, avoid reheating chicken in the microwave, and instead, use the same heat source used for initial cooking.
Yes, the "warmed-over flavor" phenomenon is not unique to chicken and can occur with other meats, including turkey. This is because WOF is caused by the oxidative decomposition of lipids, which are present in all meats.
