Omar Khalid
Sausages are encased in materials that can be broadly categorized as edible or inedible. Natural casings are derived from animal intestines, while synthetic casings are manufactured from materials like collagen, cellulose, or plastic. Plastic casings are designed to be inedible and are typically thicker, firmer, and more rigid than edible casings. They also do not shrink during cooking and may be smooth, shiny, and uniform in appearance, sometimes bearing brand logos or names. Edible casings, on the other hand, are usually more translucent and pliable, providing a distinctive texture and flavour. While some sausages may have a plastic-like coating, these are typically made from edible wax or cellulose and are safe for consumption.
| Characteristics | Values |
|---|---|
| Plastic casing appearance | Smooth, shiny, uniform, clear or coloured, may have printed logos or brand names |
| Texture | Firm and rigid, lacking the pliability of natural casings |
| Thickness | Thicker than natural casings |
| Cooking behaviour | Does not shrink during cooking |
| Edibility | Inedible, should be removed before cooking and consumption |
| Composition | Polymers such as polyamide, polypropylene, or polyethylene |
| Use | Typically used for sausages that are not intended to have a natural "snap" or bite |
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What You'll Learn
- Plastic casings are inedible and should be removed before cooking
- Natural casings are edible and are made from animal intestines
- Synthetic casings are made from collagen, cellulose, or plastic
- Plastic casings are smooth, shiny, and thicker than natural casings
- Sausages with plastic-like coatings are safe to eat and are made from edible wax
Plastic casings are inedible and should be removed before cooking
Sausages are encased in materials that can be broadly categorized as either edible or inedible. The edibility of these casings varies depending on their composition. Natural casings are derived from animal intestines, while synthetic casings are manufactured from materials like collagen, cellulose, or plastic.
Plastic casings are inedible and are typically used for sausages that are not intended to have a natural "snap" or bite. They are made from polymers such as polyamide, polypropylene, or polyethylene. Polyamide (Nylon) casings are the most common in the production of cooked sausages and hams such as luncheon meat and bologna.
Plastic casings have distinct characteristics that differentiate them from edible casings. They often have a smooth, shiny, and uniform appearance, with printed logos or brand names. These casings feel firm and rigid to the touch, lacking the pliability of natural casings. They are generally thicker, providing a noticeable heft when handled.
It is important to recognize and remove plastic casings before cooking as they are not meant for consumption. If the casing proves difficult to remove, soaking the sausages in warm water can help loosen it. While plastic casings are safe and commonly used in the food industry, they should be appropriately discarded after removal.
Some sausages may have a plastic-like coating or contain additives that resemble plastic. These coatings and additives are typically used to enhance appearance or texture and are generally safe for consumption. They are usually made from edible wax or cellulose, which helps preserve the sausage and prevent moisture loss.
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Natural casings are edible and are made from animal intestines
Sausages are encased in materials that can be broadly categorized as either edible or inedible. The edibility of these casings varies depending on their composition. Natural casings are edible and are made from animal intestines, whereas synthetic casings are manufactured from materials like collagen, cellulose, or plastic.
Natural sausage casings are made from the sub-mucosa of the small intestine of meat animals, a layer of the intestine that consists mainly of naturally occurring collagen. In Western European cuisine and Chinese cuisine, most casings come from pigs, but elsewhere, the intestines of sheep, goats, cattle, and sometimes horses are also used.
The process of preparing the intestines as casings involves flushing, scraping, and cleaning them with water and salt by hand or with machinery. Today, they are primarily machine cleaned. The intestines are first removed from the animal during the slaughter process. They are then cleaned, which involves breaking the inner mucosa, usually with a machine that the intestines go through and rollers to break the inner mucosa so it can be flushed out and removed. The cleaning process can also be done by hand but is primarily done by machine due to its high water intensity. The casings are vigorously flushed with cold water to remove blood from the mucosa, which, if not properly cleaned, can lead to "staining" of the casing, resulting in a pink colour.
The size and usage of natural casings depend on the animal they are derived from. The narrowest casings are made from lamb, followed by sheep, pig, and beef. The size range for lamb casings is 14 mm to 28 mm in diameter, while beef bung caps can range from 115 mm to 130 mm in diameter.
It is important to note that while plastic casings are inedible, they are safe and commonly used in the food industry. They are typically used for sausages that are not intended to have a natural "snap" or bite. Plastic casings are usually smooth, shiny, and may have printed logos or brand names on them. They feel firm and rigid to the touch and are thicker than natural casings. Unlike natural casings, plastic casings do not shrink during cooking and remain unchanged in size and shape.
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Synthetic casings are made from collagen, cellulose, or plastic
Sausages are encased in materials that can be broadly categorized as either edible or inedible. The edibility of these casings varies depending on their composition. Natural casings are derived from animal intestines, while synthetic casings are made from materials like collagen, cellulose, or plastic.
Collagen is a natural protein product that comes from a layer of beef tissue extracted from between the fat and hide. It is removed, refined, and extruded through a mandrel into tubular shapes. Collagen casings are usually more tender than natural casings and do not exhibit the "snap" or "bite" of natural casing sausages. Most collagen casings are edible, but a special form of thicker collagen casings is used for salamis and large-caliber sausages, where the casing is usually peeled off the sausage by the consumer.
Cellulose casings are generally made from cotton linters or wood pulp, which is processed to make viscose. This viscose is then extruded into clear, tough casings for making wieners and franks. They are also shirred for easier use and can be treated with dye to make "red hots". Cellulose casings are peeled off food products and are not meant to be eaten.
Plastic casings are designed to be inedible and are typically used for sausages that are not intended to have a natural "snap" or bite". They often have a smooth, shiny, and uniform appearance and can be clear or colored. They may also have printed logos or brand names on them. Plastic casings are generally thicker than natural casings, providing a noticeable heft when handled. They do not shrink during cooking and may remain unchanged in size and shape. Plastic casings are safe and commonly used in the food industry, but they should be removed before consumption if one prefers to avoid consuming non-edible casings.
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Plastic casings are smooth, shiny, and thicker than natural casings
Sausages are encased in materials that can be broadly categorized as edible or inedible. Natural casings are derived from animal intestines, while synthetic casings are manufactured from materials like collagen, cellulose, or plastic. Plastic casings are designed to be inedible and are meant to be removed before consumption. They are typically used for sausages that are not intended to have a natural "snap" or bite.
Plastic casings have distinct characteristics that differentiate them from natural casings. One of the most noticeable features is their smooth and shiny appearance. They often have a uniform and consistent look, and they may be clear or coloured. Brand labels or logos are sometimes printed on plastic casings, making them easily identifiable. This differs from natural casings, which tend to be more translucent and pliable.
The texture of plastic casings is another key characteristic. They feel firm and rigid to the touch, lacking the pliability found in natural casings. Plastic casings are generally thicker, providing a noticeable heft when handled. This thickness contributes to their overall durability, making them less susceptible to breakage during processing and handling.
Plastic casings also behave differently during cooking. Unlike natural casings, they do not shrink during the cooking process and may remain unchanged in size and shape. This behaviour is due to the material composition of plastic casings, which are typically made from polymers such as polyamide, polypropylene, or polyethylene. While these casings are inedible, they are safe and commonly used in the food industry.
It is important to distinguish between plastic casings and other synthetic casings, such as those made from collagen or cellulose. While plastic casings are inedible, collagen and cellulose casings are generally considered edible. However, it is worth noting that some special forms of thicker collagen casings are used for certain types of sausages, and these thicker casings are typically peeled off and not consumed.
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Sausages with plastic-like coatings are safe to eat and are made from edible wax
Sausages are encased in materials that can be broadly categorized as either edible or inedible. While natural casings are derived from animal intestines, synthetic casings are manufactured from materials like collagen, cellulose, or plastic.
Plastic casings are designed to be inedible and are typically thicker than edible casings. They are used for sausages that are not intended to have a natural "snap" or bite. These casings are safe and commonly used in the food industry, but they should be removed before consumption.
However, it is important to note that not all sausages with plastic-like coatings are made of plastic. Some of these coatings are made from edible wax or cellulose, which helps to preserve the sausage and prevent moisture loss. These coatings are safe for consumption and are not considered plastic.
Certain additives used in sausage production, such as carrageenan and guar gum, can also have a plastic-like texture. These additives are used to enhance the texture and stability of the sausage, and while they may resemble plastic, they are generally considered safe for consumption in small amounts.
When it comes to identifying plastic sausage casings, there are a few characteristics to look out for. Plastic casings often have a smooth, shiny, and uniform appearance, and they may be clear or coloured with printed logos or brand names. They feel firm and rigid to the touch, lacking the pliability of natural casings.
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Frequently asked questions
No, plastic casings are designed to be inedible and should be removed before cooking and consumption.
Plastic casings often have a smooth, shiny, and uniform appearance. They may be clear or coloured and can sometimes have printed logos or brand names on them. They feel firm and rigid to the touch, lacking the pliability of natural casings. Plastic casings are also thicker than natural casings, providing a noticeable heft when handled.
No, some sausages may have a thin, edible coating that resembles plastic. This coating is usually made from a type of edible wax or cellulose that helps to preserve the sausage and prevent moisture loss.
