Is Your Product Ready for Shelf-Life Testing?

Is Your Product Ready for Shelf-Life Testing?

A Practical Checklist for Brands Preparing for Launch

If you’re researching shelf-life testing, something has likely already triggered the need. In most cases, brands don’t pursue shelf-life testing out of curiosity. They do it because a retailer, copacker, auditor, or internal team has asked for a best-use-by or expiration date.

Before starting a shelf-life study, it’s important to confirm whether your product is actually ready. Starting too early can lead to delays, re-testing, or unusable data.

Below are four practical considerations to determine if shelf-life testing is the right next step for your product.

Shelf-Life Testing Is Designed for Finalized Formulations

Shelf-life testing works best when your product formulation is finalized. If your formulation, ingredients, or processing steps are still changing, shelf life results may no longer apply once those changes are made.

Your product is likely ready for shelf-life testing if:

• The formulation is final
• Ingredients and processing are locked
• No additional changes are planned

This is one of the most important readiness indicators.

Final Packaging Is Required for Shelf-Life Studies

Shelf-life is influenced by both the product formulation and its packaging. Different packaging materials and seals can significantly affect a product’s stability over time. 

Before starting a shelf-life study, you should know:

• The final packaging type
• Package size and fill weight
• Whether packaging will remain unchanged

If packaging is not finalized, baseline testing such as pH and water activity may be a better first step than a full shelf-life study. These values can give insight into the stability of your product and help you determine whether you may want to change your packaging.

Storage Conditions Must be Defined

Shelf-life testing evaluates how a product performs under its intended storage conditions.

You should already know whether your product will be stored:

• Ambient at room temperature, ambient (shelf-stable)
• Refrigerated
• Frozen

Accelerated shelf-life testing is generally best suited for shelf-stable products. Refrigerated products may be eligible on a case-by-case basis, while frozen products are typically not appropriate for accelerated testing.

If you are unsure what the ideal storage condition of your product is, you can compare similar product types' storage conditions or, for more specific advice, can reach out to a packaging or formulation consultant. 

Your Product has a Target Shelf-Life Goal

If you are new to shelf-life testing, it’s common not to know what an appropriate shelf-life should be. Our team can help advise on realistic shelf life targets based on your product type, formulation, packaging, and storage conditions.

We have designed shelf-life studies for thousands of products ranging from sauces and pickled foods to fresh seafood and supplements, working with companies that range from small businesses to large manufacturers.

pH and Water Activity vs Shelf-Life Testing

A common misconception is that pH and water activity testing alone can determine shelf life.

While pH and water activity can indicate whether a product may be shelf stable, they do not establish a best use by or expiration date.

A shelf-life study:

• Evaluates the product over time
• Monitors microbiological and sensory changes
• Supports a defensible shelf-life claim

pH and water activity testing can help:

• Indicate whether a product may be shelf stable or require refrigeration
• Identify conditions that may support or limit microbial growth
• Provide baseline data to guide formulation, packaging, or next testing steps

Understanding the difference between baseline testing and shelf-life testing is a key readiness signal.