Objectives:
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(1) To discuss the implications of boxed beef on where beef is now slaughtered.
(2) To identify common trademarks, materials, processes and equipment used to package meat.
(3) To describe advantages and disadvantages of various packaging systems.
Reading material: Principles of Meat Science (3rd Edition), chapter 9, page 220 to 221, chapter 10, pages 253 to 260.
Boxed beef began in the &#;s and caused a major revolution in where beef is now slaughtered (from Chicago, New York, Kansas City, etc., to Amarillo, Plainview, Friona, etc.)
IBP Cattle-Pak &#; Seven-box style of boxed beef where there were two boxes of rounds, two boxes of loins, two boxes of chucks, and one box that contained both ribs that were sold as a unit.
Eventually boxed beef shifted from primals (e.g., round, loin, rib, and chuck) to subprimals (e.g., inside round, eye of round, bottom round, top sirloin butt, strip loin, tenderloin, ribeye, chuck roll, clod).
Pioneers in boxed beef &#; Tyson-IBP, JBS-Swift, Cargill. By their dominance in boxed beef, this has allowed these three companies to control around 75% of the fed beef slaughter and 85% of the boxed beef production in the United States. Today, virtually of all beef produced is boxed.
Cryovac®, a division of Sealed Air®, was instrumental in developing both the packaging materials and equipment for boxed beef to happen. Cryovac®-brand food packaging is the dominate supplier in the food industry today.
Sealed Air® Cryovac® Food Brand Packaging
Cryovac® brand barrier bags &#; Uses layers such as Saran® or other oxygen-barrier materials to provide low oxygen transmission rate (OTR) and low moisture vapor transmission rate (MVTR) allowing excellent shelf life.
Cryovac® brand abuse resistance bags &#; One of the most notable is the Cryovac® bone guard bags used for bone-in products such as beef ribeyes, bone-in, pork spare ribs, and pork back ribs.
Polyvinyl chloride (PVC) overwrapped plastic foam trays &#; This is the historic way that most beef, pork, and lamb has been packaged for the retail marketplace.
Polyvinyl chloride (PVC) overwrapped rigid plastic trays &#; Plastic rigid trays offer recycling options for the tray.
Case-ready packaging is where meat is prepared and packaged in a central location and is boxed and delivered to the retail store. The packaged meat then is placed in retail display cases just like any other grocery item.
Walmart has led the growth in case-ready packaged meat.
Master packaged PVC-overwrapped steaks/roasts &#; Groups of PVC-overwrapped steaks or roasts are placed in a large plastic bag, the air is drawn out, and is back-flushed with a mixture of three gases:
Vacuum skin packaging (VSP) &#; Individual steaks, chops, roasts are placed on rigid or semi-rigid low-profile or flat trays and are vacuum packaged with roll-stock machine where the top film forms over the contour of the cut.
Modified atmosphere packaging (MAP) &#; Individual steaks, chops, roasts are placed in rigid high-profile trays, air is evacuated, and package is backflushed with mixtures of gases before sealing with top film (lid):
PVC-overwrapped packages &#; Used widely where bench trimmings and/or chubs of coarse-ground trimmings are run through a meat grinder in the backroom of the retail store.
Although the shelf-life is shorter than other forms of packaging, the bright red color of the PVC-overwrapped ground beef is very attractive.
Chub packages &#; Tubes of 1-, 2-, 5- or 10-pounds of ground beef that range in lean:fat ratios (e.g., 70% lean:30% fat; 80% lean:20% fat; 96% lean:4% fat) and source (e.g., ground beef, ground round, ground sirloin, ground chuck).
Brick packages &#; Cubes of one-pound packages that are vacuum packaged with roll-stock machine. Cavity formed in the bottom film, product placed in the cavity, vacuum packaged and covered with top film. After labeling, package is displayed with the bottom film on top and the top film on bottom.
Roll-stock vacuum packaging &#; Cavity is formed in the bottom film, steaks are placed in the cavity, vacuum is formed, and top film is sealed.
(1) Terminology associated with packaging.
(2) Leaders in packaging equipment and technology.
(3) Who is marketing different types of prepackaged products.
(4) The different types of vacuum or modified atmosphere packaging systems.
Links to related sites on the Internet
Cryovac &#; Sealed Air Corporation
J.W. Savell, revised March,
- Thursday, December 22,
In the pharmaceutical industry, there are many types of mixers, such as V cone blenders, double cone blenders, drum blenders, ribbon blenders, etc.
If you are looking to buy a ribbon blender, we have brought a complete guideline for you where you will know about the ribbon blender advantages and disadvantages, how it works, and why pharmaceutical industries need it.
However, before digging into the details, let's know some basic things about ribbon blenders.
What is a ribbon blender & mixer machine? The horizontal ribbon mixer is a new type of mixing and stirring equipment with high efficiency, high uniformity, high loading coefficient, low energy consumption, low pollution, and low crushing. The product has a wide range of applications and can be used for mixing and stirring powder and powder, powder and liquid, especially for mixing paste, viscous or high specific gravity materials (such as putty, real stone paint, metal powder, etc.). This equipment is currently widely used in the fields of pharmaceuticals, food, pesticides, dyes, chemicals, plastics, ceramics, coatings, putty, mortar, etc.
Besides being a budget-friendly machine, this blender has its pros and cons, which we will explain in detail.
Ribbon blending machines are powder-mixing type accessories available in the market. Industries use them for mixing solid and liquid ingredient mixing when required. In the corrective maxing pattern of the ribbon blender, you can run short and fast mixing cycles ranging from a few minutes to 15 minutes. These rapid mixing cycles make you think the ribbons move at a high RPM. However, that is not true. Ribbon agitators run up to 300 feet/min tip speed.
One can benefit from its full discharge feature if the machine has a central discharge port. By running the machine at a lower speed, one can easily push the item back and forth till the mixing vessel is empty. In addition, the manufacturers can use several powder valves on the mixer's discharge port. Whereas many plug valves can be flush with the internal surface of the mixer body when in the closed position. That preserves the buildup of the mixture during the mixing cycle.
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The working volume capabilities of a ribbon mixer remain low at 30%. In case the capacity is less, it won't permit contact between the ribbons and materials. The mixer can work with 100% capacity in various applications. Whereas the ideal mixing capacity remains within 50-70.
There is a never-ending list of ribbon blender benefits. One can use such versatile machinery in several industries, including food, cosmetics, agriculture, pharma, etc. Moreover, it is very easy to operate for workers looking to mix heavy ingredients easily. It is a time-saving accessory that ensures flawless outcomes within a quick time. Whether how messy the ingredients are, this machine will deliver quality results.
High shear speed ensures ingredients are mixed quickly and produces smooth output. Furthermore, the solid build of the ribbon blender guarantees no leakage of ingredients during the mixing process. As a result, one can complete the task before the given time without committing any mistakes.
Mixing different ingredients can result in contamination, leading to the transmission of hazardous material, which can adversely impact your overall health, causing infection and other diseases. The ribbon blender machine is built considering such facts and ensures excellent hygiene by avoiding products from cross-contamination. Moreover, the stainless-steel construction of this mixing machine enables It to last for years.
The ribbon blender machine Adopts exquisite craftsmanship making it equally advantageous for dry and wet users. In addition, the blenders of machines are designed so that both ends are sealed.
The blender adopts space-saving size and easily fits limited areas. This means you don't have to arrange a dedicated area for placing your machinery to blend the industry ingredients.
Its double ribbon agitator moves in a counter-current motion sending material from one place to another. As a result, the manufacturers get a homogenous mixture quickly without investing too much effort.
Let's proceed with the disadvantages.
The blending machine does not work well in all laboratories. Therefore, you should decide about the unit as per your needs.
One might experience the issue while using power's bulk density in a high concentration.
If the mixing tank of your blender is overfilled, it will require more time to mix ingredients than its normal routine.
Lack of proper care can lead to broken seals, which can cause leakage of particles creating a mess for you to clear.
Below are the major parts of ribbon blenders:
How does a ribbon blender work? Ribbon mixers are powder blenders having two moving parts on a central shaft. Its mixing medium has helical ribbons inside and outside, which can move both inwards and outwards. They grab product from the sides into the middle and internal ribbons. The back-and-forth folding motion of the materials needs to be blended, forming a connective mixing pattern.
The ribbons of the machine have a distance between its walls. The manufacturers sometimes produce them with soft wipers to ensure the product keeps building up on both sides. Driving mechanism basis of a belt drive for power transmission in the motor and gearbox. It uses a system that produces speed by using flexible belts and pulleys.
Some manufacturers have started using direct drives through gears that use a motor to match the gearbox unit. As a result, machine owners do not have to worry about maintenance expenses over time. However, the owner of the ribbon blender mixer knows the needed volume of the machine.
Knowing several densities of the products to mix is important. Additionally, you should know the required mixer capacity and the need for motor power to ensure proper mixing. Often many designs produce great results with a bulk density of 35 lbs./ft³. However, when mixing the batch initiates, you need to know the requirement for heavy motors and the gear change ratio.
Manufacturing factories and industries use a ribbon blender or ribbon blender mixer. It is useful in mixing items having many particles. Moreover, it is essential to mix these particles evenly. This mixer has a shaft along with mixing blades having different angles. These blades are made in such a way they look like metal ribbons surrounding the shaft, making it easy to move parts in several directions altogether. The manufacturers can use this machine for food or medicines.
For example, the iPharMachine's horizontal ribbon blender is very user-friendly because of its compact size. One can make it fit in the limited overhead space areas. The machine works smoothly, creating a uniform product within less time. It comes with a fast-rotating agitator capable of blending powdered materials of various sizes and densities. The ribbon blender is sharp enough to blend almost 90% of the material, including cosmetics and pharmaceuticals, which makes it a versatile product to be used in any laboratory.
Contrary to ordinary machines in the market, this Horizontal ribbon blender blends various substances. Moreover, its budget-friendly motors and digital control panel make it an ideal mixer. This attribute makes it a reliable mixer and people's choice for mixing substances. In addition, it is a good choice for solid-liquid mixing because of its low operational costs. Besides, the iPharMachine offers small volume CH type powder mixer, Big Volume Type Powder mixer Blender CH200, powder mixer WLDH100-500 and WLDH-.
An affordable option that you can use in the following industries:
Every coin has two sides; the same goes for this ribbon powder mixer.It comes with advantages and disadvantages as well. In contrast, there are remedies available to fix the problems. For instance, if you experience ribbon blockage, use the lower bulk density. Over the advantages of ribbon, the blender outweighs its drawbacks, making it a convenient, user-friendly, and time-saving mixing machine for almost every industry.
Besides its easy user manual, some individuals find it challenging to operate this machine, considering that we have brought an easy guide to operate the ribbon mixing machine. However, it allows you to understand the proper mechanism of operating.
However, you need to take the following:
An easy-to-understand guide enables you to run the machine efficiently. Moreover, proper care will reduce the chances of malfunction and problems in the blender, making it a long-lasting accessory for mixing.
Above are the complete details about a ribbon blender mixer, including its starting process, parts, advantages, disadvantages, etc. While building a ribbon mixer for the process, you must keep one thing in mind: using a variable frequency drive. It will result in smooth performance and reduce operational wear and tear risk.
Another important fact you need to consider is the internal surface finish of the agitators and mixer body. If you use a free-flowing mixed batch, your 80-grit beat blast will remain fine.
A ribbon blender allows you to mix heavy ingredients with ease. Call it a time-saving machine or an efficient mixing accessory. The choice is yours. It is ideal for several industries enabling you to mix heavy ingredients within a quick time evenly. A space-saving machine that you can fit in limited space areas as well. Very user-friendly; even a layman can operate it for the first time. If you find anything difficult, see the above guide to run the machine.
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