Every food or beverage product needs to ensure it makes it to the shelf in peak condition. Shelf-life testing is what allows them to do that by showing them how all of the elements involved change over time.
An experienced food development consultant would be aware of the significance of shelf-life testing and would incorporate it into their product development process. Neglecting or rushing through shelf-life testing is one of the most common ways of turning a potential product into a product that leads to a recall or negative feedback.
What Is Shelf-Life Testing and How Is It Relevant?
Shelf-life testing involves measuring the changes in the product's flavor, appearance, safety, and consistency over time. This test allows the brand to understand the exact period of time for which the product is edible and safe to consume, and the circumstances that can reduce the shelf life period.
Without shelf-life testing, brands would be merely speculating about the expiration dates and causing potential danger to consumers. Shelf-life testing allows for making sure that the brand has enough evidence and the information needed to print the right expiration date on the package.
How Does Shelf-Life Testing Avoid Costly Product Failures?
The root cause of many product failures lies in a component that was not thoroughly tested before release. A comprehensive test regimen will identify these problems while they can still be easily resolved.
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It points out packaging that fails to shield against moisture, oxygen, and light exposure.
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It spots problems with the degradation of flavor or texture before the products get to their final consumer.
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It points out risks of microbial growth associated with pH, water activity, or storage temperature.
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It highlights issues of separation, sedimentation, or color changes that impact shelf appeal.
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It provides logistics professionals with realistic estimates of product movement.
Fixing such issues in the laboratory setting is much cheaper than dealing with them after product release.
Factors That Affect the Shelf-Life of a Product
The shelf-life is not affected by just one factor alone but rather by various aspects which interact in complex ways and cannot be known until they are studied as a whole.
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Quality and interaction between ingredients such as fats, proteins, and sugars
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Water content and moisture levels
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Type of packaging and effectiveness of barrier
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Temperature range for storage and transportation
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Processes such as pasteurization and high-pressure processing
This means that in studying the shelf-life, the testing process must take into consideration the product as a whole.
How Do RTD Beverages Present Unique Shelf-Life Challenges?
Unlike solid foodstuffs, RTD beverages require special shelf life testing conditions due to their liquid form, higher susceptibility to separation, settling, and taste change, as well as greater sensitivity to changes in temperature during transportation and storage.
A professional RTD beverages consultant understands which testing should be performed to identify possible threats of such nature, including protein stability of a dairy product and carbonation of sparkling beverages. That is important because an RTD beverage looking great at first may fail in separation or lose its required properties in just several weeks due to incorrect shelf life tests.
What Does a Shelf-Life Testing Program Entail?
A complete shelf-life testing program is a process involving multiple stages aimed at answering particular questions related to the behavior of the product during the testing process.
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Initial testing to define baseline characteristics of the product
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Accelerated aging studies to mimic months of storage in a compressed time period
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Real-time studies for the evaluation of the product under normal storage conditions
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Sensory evaluation to check changes in taste, smell, and texture at certain intervals
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Microbiological and chemical analysis to prove the safety of the product over the entire period of its shelf life
Conducting these stages in sequence will provide an entire picture for the brand, not a single data point, potentially overlooking some gradual development.
Why Is It Worth Hiring a Food Development Consultant?
The shelf life testing process produces a great amount of information, which can only be analyzed when you know what all these numbers mean in the context of the real manufacture and marketing environment. That is when external assistance becomes noticeable.
Hiring a food and development consultant gives your company a chance to work with the person who knows how to relate test results to formulas, packaging, and manufacturing conditions so that your product doesn’t remain misunderstood. In the case of food & beverage consultant services brands, the combination of the expertise of a consultant in food development and RTD beverages will make sure that the testing process takes into account all possible dangers typical for liquids and not for solid foods.
Product Development for Longevity
Shelf-life testing isn’t a checkbox prior to market release. Rather, it’s a critical and highly practical process that shields the consumer, protects your brand name, and provides your product with the highest probability of success post-market. Companies that understand this and incorporate testing into their formulation processes launch products with far greater reliability and fewer surprises.
Over several decades, GVDNEXT has successfully helped food and beverage brands bring their concepts to market, developing everything from protein bars to RTD beverages and commercial-scale systems of production. Our approach combines innovation with engineering, so that products aren’t only revolutionary; they’re reliable, too.
Are you ready to develop a product that will withstand the rigors of real-world usage? Contact us today to craft a shelf-life testing and development plan.
FAQs:
How soon should shelf-life testing be initiated in the product development process?
The sooner the better because preliminary findings could affect the choice of ingredients and package that would otherwise cost much to modify.
Is it sufficient to conduct only accelerated aging experiments, or should real-time shelf life tests be conducted as well?
An accelerated aging test gives an immediate prediction but must be conducted alongside the real-time shelf life test for validation.
Does the selection of package material have any effect on shelf life test findings?
The packaging affects exposure of oxygen, moisture, and light to the formulation; therefore, different packaging materials would yield different results for a particular formula.
How does shelf-life test differ between solid foods and RTD beverages?
There are additional risks to beverages, such as separation, sedimentation, and loss of carbonation, that require additional sensory tests in addition to other tests that are not necessary for solid food products.
How frequently should a launched product be tested?
It would be advisable to do this whenever there are changes in suppliers, formulations, and package design, as even small changes can affect the shelf life of the product.