Ceramic Balls
Understanding the 2 Most Common Ceramics: AL203 and ZrO2 is Critical for X-ray Inspection
August 1, 2023
25th Anniversary
Celebrating our 25th Anniversary!
October 1, 2023
Ceramic Balls
Understanding the 2 Most Common Ceramics: AL203 and ZrO2 is Critical for X-ray Inspection
August 1, 2023
25th Anniversary
Celebrating our 25th Anniversary!
October 1, 2023

Quality ControlQUALITY ASSURANCE AND QUALITY CONTROL

Quality assurance is the cornerstone of any good food growing, manufacturing, or processing company.  There are, of course, a lot of products on the market that are less than high quality and there are consumers who buy them.  Still, it just makes good sense to consider consumer satisfaction, safety, and the company’s proverbial “bottom line.”  Profitability, whether we like talking in those terms or not, is always a consideration.

There is a bit of confusion, however, between quality control and quality assurance.  These two terms, in some respects, are interchangeable, but do you really know the difference?  And is it important?

In this brief article, we’ll consider:

  • The definitions of quality assurance and quality control as they apply to the food industry.
  • The role of quality assurance in food industry
  • The value of high-quality metal detection and x-ray inspection verification test pieces
  • One key piece of equipment for quality assurance and quality control

To put it succinctly, quality assurance is a pre-emptive set of methods to ensure a desired product quality standard by precluding deficiencies during the processing or manufacturing stages.

But while quality assurance aims to prevent deficiencies in the processing, quality control is meant to recognize flaws in the finished product and then design corrective actions so that quality assurance can be achieved and maintained. One refers to the end-product, the other to the controls that achieve the quality of the intended product.

These two terms are frequently used interchangeably in the industry, in part, because the nature of a QA manager’s role in a small or even medium-sized business is to oversee both responsibilities. Here, this person might direct hygiene, pest control, defect identification and documentation, regulatory compliance and even response to consumer complaints.  In large food processing organizations, a QA manager will be focused on supervision of the QA team and developing the protocols to be charted.

Since assurance and control are interrelate and both are necessary in any food plant.

In New Food Magazine, Gizen Kayar once wrote, “QA is the backbone of food manufacturing…” and went on to indicate that if good systems and protocols are not in place, the results “can be lethal.”*

Compliance with legal regulations along with customer satisfaction and internal/external standards all fall under the heading of quality assurance.  There will also be a focus on continuous quality improvement, documentation, reporting, error detection and solutions, the result being a safe, high-quality product delivered to the customer.

Whether it’s the quality assurance or quality control department, when it comes to food safety, the proper (and best) equipment is required, and this includes metal detection and x-ray inspection systems.  Regal Packaging Services sells and services Fortress Technology metal detectors and before you purchase a system, we believe you should look at Fortress systems.

In addition, here in the Testrods.com division of the company, it’s our privilege to supply you with the best metal detection and x-ray inspection verification test pieces you’ll find on the market.  Ensuring that you can test and verify your equipment is working correctly is a large part of the quality control process.  You need a product and company that you can trust as a part of your overall plan in food safety.  The consistent, high-quality products you put on market builds consumer trust and brand loyalty, keeping you ahead of the competition.

Our job at Testrods.com is to be part of your team.  Look at what we have to offer, and keep in mind that we can customize any design you may need.  We may never set foot in your food plant, but whether we’re there or in any of the 20 countries around the world we currently serve, we value your business and the opportunity to assist in your success.

taken from New Food, “Quality assurance: the greatest business strategy.”

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Some applications involve large tubs, vats, or some other type of product travel where it would be nice to have a test piece that floats. Once again, our thermoform cards provide the simplest solution. We simply insert some type of structure that forces the thermoform card to retain air, which, of course, is what makes it float. We have also manufactured floating rods, which are more difficult because there is less space to close in enough air to make the rod float but is doable.

We took an ordinary plastic “chip clip” as defined by the customer and embedded the contaminant into the clip. The clip can be attached to the product on the line without damaging or opening the product for testing purposes.

Bone is a difficult contaminant to find because it can vary widely based on the size, age, and calcium content (as well as feed used) of the animal. After working with several customers, Regal Packaging Services offers Pork, Beef and Chicken Bone Simulate. We have a small range of sizes at a variety of depths to simulate whatever you might expect to find in the product. Our recommendation (assuming your x-ray has visual display) is always to start with a multi-card. Using a multi-card gives you an easy way to test several sizes and depths to determine what matches the bone you’re using. Once you’ve made a comparison, testing the card against the bone you’re looking for, you can purchase a card with a single contaminant for regular testing.

This small pill shaped test piece is used in a system with a vacuum tube that shoots the test piece through the aperture and returns it to the “home” base. Your system may never be like it, but the point is that we can make a customized solution no matter how unusual or impossible it might seem.

As you may have seen in some of the other thermoform card descriptions, we can put nearly as many seeds as you can imagine on a single card. Pictured here you will find a wide variety of configurations and contaminants. Just let us know your specs: size of the card (up to 8” x 8”) along with size and type contaminant(s) and we’ll get you a quote as quickly as possible. Working with a multi-card is especially helpful when you are looking for multiple types of contaminants or when you want to determine what size of the same contaminant you are able to detect. In that event, once the size is chosen, you can order individual card(s) for regular, standard inspection and detection.

There are a wide range of applications that require a test piece much longer than our standard 5” or 6” Testrods. We can make up to 3/8” x 34” or 1/2” x 34” rigid test pieces which can then be extended well beyond that length with a “handle” made of acetal cylinder larger than the 3/8” or 1/2” extension. In the photos, we used a 1” x 24” cylinder handle with a 3/8” x 24” inch extension.

Test pieces can be made in a variety of sizes and given a pointed end in applications that require the contaminant (metal) to be inserted into a food package such as sugar or some other soft packaged food product. This allows the metal to reach the center of the aperture.

Double-End Test Whips are also available, with metal in both ends. One consideration is to make certain that the whip is long enough to keep the metal on the non-testing side of the whip outside the metal free zone of your detector. If you insert, for instance one end of a whip with 2.0mm and 3.0mm Ferrous, you need to make certain that the 2.0mm metal doesn’t affect the detection of the 3.0mm metal (and vice versa). If the 3.0mm metal is inside the metal free zone, then the detector will be reacting to the 2.0 as well as the 3.0 as if they were combined.

Multi-seed laminate test cards are designed for seeds 4.0mm or less. Multi-cards are useful in x-ray inspection to determine what sizes and types of contaminants your system can achieve. They can be especially useful in temperate environments and applications. If your application is rugged or wet, or your standards are larger, we recommend our thermoform multi-cards.

We can simulate a variety of packaging in an application where you need the test piece to mimic what is traveling down the production line. In this case, we manufactured a clear “package” with the seed inside. With this method, the customer is able to reject the container appropriately, and, in the event the package is not rejected, it is easily seen by the line worker for manual removal.

There are two types of “candy bars” pictured here – one similar to a flat candy bar and the other in a custom, near perfect copy of a candy bar. Since we’re now able to produce many variations using colored material, the copy was made in red (Fe), green (NFe) and blue (SS 316). We have the equipment to accomplish nearly anything you can imagine, and these kinds of designs are proof positive.

Need a test piece that looks and handles like chicken nugget? We can do it. Interestingly enough, in this situation, our first version for the customer left too much “void” in the hole where the metal was placed. Given the sensitivity the customer system was using, the void had the effect of causing false positives. We were able to minimize that hole and supply the test piece with almost no void. It’s an example of how we can work with you before, during and after manufacturing to ensure all the specifications were met.

Our standard acetal card is 2 1/4"x3 3/8,” but if needed, we can cut that size down to as small as 1 1/4” x 1 1/4” (with limited engraving). If a larger card or a card with multiple seeds is needed, see our Custom Shape-Size Blocks and Tablets.

This distinctive test piece was created to mimic an actual hamburger patty. The customer supplied photos of the raw product, which we were able to reproduce and then we placed blue glove contaminant. Using this configuration, the customer was able to determine what size piece the vision scanning system could detect with the raw burger as the background. Had they simply used a blank card with the glove, the system could easily have achieved contaminant rejection, but they needed to be sure the system could “see” the blue against the product itself.

A card with 100 seeds in a 10x10 configuration is used to place beneath whole chickens on a production line. This gives the x-ray system operator the ability not just to see IF the equipment can detect the metal in the card, but also WHERE the equipment can detect it. If there is a problem, the operator (or company) can make any changes necessary to achieve the end goal – safe chicken in this case. This card really highlights another valuable facet of our thermoform cards.

In this scenario, a company processing sugar needed to have a “bag” simulated with the same weight in order to accurately fall through the reject mechanism. A lighter test piece had the risk of passing over the reject mechanism.

Our standard cubes are 1” and 1.5,” but we can also manufacture other sizes if needed. The cubes shown here are 1/2" in dimensions. Cubes can be helpful in applications where a ball or cylinder may bounce or roll away during testing, making their retrieval difficult, or, in some cases, present a hazard to the product or production equipment.

This is a test piece that is dropped into a bottle. It’s designed so that the metal appears in the center of the aperture when testing the metal detector. In addition, the round stop makes the test piece easily removable after testing.

Hexagonal Shaped test pieces can be very useful in places where a cylinder or ball might roll or bounce around a production floor whether dropped by a line worker or ejection from a reject mechanism. Hexagons are similar in weight to the 1inch cylinders without having the smooth, rounded cylinder edge.

Our customer in this plant needed a test piece with a thickness less than 5.0mm. Because we have the capacity to customize sizes and shapes, we were able to mill down a product that met their specifications. That’s always our goal, meeting the specs you need for your product, testing environment and contaminants.