Sophie Bennett
Scalding is an important step in butchering a chicken, as it helps to loosen the feathers so that the bird can be plucked easily. The size of the scalding tank depends on the volume of chickens that need to be butchered. For example, a 16-gallon poultry scalder can process 3-4 chickens at a time, while a 42-quart scalder can handle two adult chickens simultaneously. If you're butchering a large number of chickens, a combination scalder-plucker unit may be worth considering, although these can be expensive. For smaller-scale operations, a single-element scalder could be a more cost-effective option. Regardless of the size of the scalding tank, maintaining the correct water temperature is crucial, typically between 140-150°F (60-65°C).
| Characteristics | Values |
|---|---|
| Temperature of the water | 140–155°F (60–65°C) |
| Dunking time | 3–5 seconds |
| Time out of the water | 2 seconds |
| Number of dunks | 4–6 |
| Feather pull test | One large wing or tail feather should slide out with no resistance |
| Fasting time before processing | 12–24 hours |
| Number of birds processed at a time | 2–3 |
| Number of birds processed per day | 25–150 |
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What You'll Learn
Optimum water temperature range
The optimum water temperature range for scalding chickens is between 140°F and 155°F (60–65°C). While some sources state that 145–150°F is the ideal range, others successfully scald at temperatures as low as 140°F or as high as 155°F.
The temperature of the water is critical to the scalding process, which serves to loosen the feathers so that the bird can be plucked easily. However, it is not necessary to maintain an exact temperature. Repeated dunking and removal of the bird from the water, along with a "jiggle action," are also important for achieving the desired result.
Over-scalding can weaken the skin and make plucking more difficult, so it is important not to exceed the recommended temperature range or scalding time. The recommended scalding time is 30–90 seconds, with additional 10-second increments as needed to loosen feathers.
To test if the chicken has been scalded sufficiently, perform a feather pull test by selecting a large wing or tail feather and pulling it. If the feather slides out with no resistance, the bird is scalded adequately.
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Scalding time
To achieve the perfect scald, the bird should be dunked in the hot water for three seconds and then vigorously jiggled up and down to ensure the hot water reaches the base of the feathers. The chicken is then removed momentarily before being dunked and jiggled again. After a few repetitions of this process, a feather pull test should be performed by selecting a large wing or tail feather and pulling it. If the feather slides out with no resistance, the bird has been scalded sufficiently. If the feather resists, the bird should be scalded for an additional 10 seconds.
The number of dunks required varies and can range from four to six or more. Each bird is unique, and there is no magic number for the perfect scald. However, it is crucial to repeatedly dunk and test the feathers until the optimal scalding point is achieved.
It is important to note that scalding water should contain soap, as it allows the water to penetrate better. Additionally, the water can get dirty over time, making the perfect pluck more challenging. Therefore, it is recommended to change the water after processing a certain number of chickens.
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Feather pull test
When butchering a chicken, the scalding process is important to ensure the feathers can be removed easily. After dunking the chicken in hot water, you should perform a feather pull test to check if the bird has been scalded enough. The test involves selecting one large wing or tail feather and pulling it. If the feather slides out with no resistance, the bird is ready for the next step in the butchering process. If the feather does not come out easily, you may need to scald the chicken for another 10 seconds.
It is important to note that the temperature of the water for scalding should be between 140 and 150°F (60–65°C). Over-scalding can weaken the skin and make plucking more difficult. Therefore, the feather pull test is crucial to ensure the chicken is not under or over-scalded.
The feather pull test is a simple and effective way to determine if the chicken has been scalded sufficiently. By pulling a large feather, you can get a sense of how easily the feathers will come off during the plucking process. If the feather pulls out smoothly, it indicates that the scalding has loosened the feathers from the skin, and they can be removed without causing damage to the bird's skin.
It is important to be gentle during the feather pull test and the subsequent plucking process. The skin of the chicken is delicate, and rough handling can lead to tears and damage. By performing the feather pull test, you can ensure that you are not applying unnecessary force during plucking, reducing the risk of skin damage.
Additionally, the feather pull test can also provide insights into the overall health of the chicken. Healthy feathers should be shiny and lay flat against the body. During the test, if you notice any issues with the feathers, such as brittleness or signs of parasites, it could indicate underlying health problems in the bird. Therefore, the feather pull test serves as both a quality check for the scalding process and a preliminary assessment of the chicken's health.
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Sanitisation
Sanitising the Workspace:
Start by laying down a disposable plastic tablecloth or butcher paper to catch any mess. This will create a barrier between your work surface and the chicken, making cleanup easier. Use cleaning supplies to thoroughly sanitise the workspace before beginning any processing. Pay particular attention to sanitising the area after each chicken is processed to prevent cross-contamination.
Sanitising Equipment:
All equipment that comes into contact with the chicken should be sanitised before and after each use. This includes knives, cleavers, poultry shears, and any other tools used during the butchering process. Wash these tools with hot, soapy water or use a sanitising solution to eliminate any bacteria. For example, a chicken feather plucker should be thoroughly cleaned after each use to prevent the transfer of bacteria from one chicken to another.
Scalding Water:
The scalding water should be kept clean to ensure effective scalding. It is recommended to add soap to the scalding water to increase its effectiveness and allow for better penetration. However, dirty water will not scald properly, so it is important to change the water periodically, especially when it becomes visibly dirty. This is important for maintaining sanitation and achieving optimal scalding results.
Preventing Contamination:
To prevent contamination, ensure that the chicken's digestive system is empty by fasting the birds for 12-24 hours before processing. Additionally, be cautious when eviscerating the chicken, making a swift, clean cut to avoid puncturing the intestines and reducing the risk of contamination. Sanitation during butchering is crucial to ensure the safety and quality of the meat.
Personal Hygiene:
Maintain good personal hygiene practices by wearing appropriate protective clothing, such as gloves and an apron, and washing your hands thoroughly before and after handling the chickens. This will help prevent the transfer of bacteria from your hands to the chicken or your workspace.
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Scalding tank construction
The size of a scalding tank depends on the number of birds to be processed and the time taken to scald each bird. For instance, one source mentions that a limit of around 150 birds per 30-40 gallon tub of scalding water is reached before a break is required to heat new water. Another source mentions that they scald 51 birds in a single element 110V Dux Industries scalder.
When constructing a scalding tank, it is important to ensure that the water temperature can be maintained in the optimal range of 140-150°F (60-65°C). This can be achieved by using a thermometer to measure the temperature and adjusting the heat source accordingly. The heat source can be a wood fire or an electric element, depending on what is available and the desired level of precision in temperature control.
The tank should be large enough to accommodate the number of birds being scalded at one time, typically two to three birds at a time for small-scale operations. The size of the tank should also consider the space required for the person doing the scalding to dunk the birds and move them in and out of the water comfortably.
The scalding tank can be constructed using materials such as metal or plastic, ensuring that the material is durable and can withstand the hot water temperatures. The tank should have a lid or cover to help retain heat and prevent excess evaporation. A drain valve at the bottom of the tank will also be useful for easy water removal.
Additionally, consider the placement of the scalding tank in relation to the water source and the rest of the butchering setup. A nearby water source, such as a hot water hose, can make filling and refilling the tank more convenient. The tank should be placed in an area that allows for a smooth workflow, with enough space to move birds from scalding to plucking and eviscerating.
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Frequently asked questions
The size of the scalding tank depends on the number of chickens to be processed. For a small-scale butchering business, a 30-40 gallon tub can handle around 150 birds before a water change is needed. For home use, a 42-quart capacity scalder can scald two adult chickens at a time.
The optimal temperature range for scalding water is between 140°F and 150°F (60°C to 65°C). Some sources recommend a narrower range of 145°F to 150°F.
The scalding time can vary, but it typically ranges from 30 to 90 seconds. Dunk the chicken in hot water for around 5 seconds, remove it for 2 seconds, and repeat this process for a total of 6 dips. After scalding, perform a feather pull test by pulling a large wing or tail feather. If the feather slides out with no resistance, the bird is ready for plucking.
