Category: Formulating

Why Bars Harden – Why It Matters

High‑protein bars commonly lose softness during storage. Conventional protein sources such as whey protein concentrate or isolate tend to bind water and crystallize, producing firm dry textures that worsen with age. As protein content increases, this problem becomes more pronounced, increasing the risk of product waste, customer dissatisfaction and reduced repeat purchases.

Hydrolyzed whey proteins offer a proven path to improved texture stability, but not all hydrolysates perform the same.

PROtelyze for Bar: A Functional Protein Designed for Softer, Longer‑Lasting Bars

Hilmar’s PROtelyze for Bar is a low‑degree hydrolyzed whey protein isolate engineered specifically to help bars stay soft and pliable throughout shelf life.

Softness that Lasts

Bars made with PROtelyze for Bar maintain softness significantly longer than those made only with standard WPI. Shelf‑life studies show reduced hardening over time resulting in better texture and improved customer experience.  Click here to download our white paper and view our shelf-life study!

Better Pliability for Improved Texture

Hydrolysis transforms the protein structure to improve water-binding and reduce crystallization. The result: a tender, consistent eating experience from the first bite to the last.

Neutral Flavor Profile

Many hydrolysates introduce bitterness, but PROtelyze for Bar’s low degree of hydrolysis and optimal enzyme selection ensures a neutral flavor profile that integrates smoothly into bar formulations – no masking agents required.

Nutritional Profile Consumers Value

PROtelyze for Bar offers the nutrition attributes today’s consumers expect:

• Low fat, low lactose and low glycemic index
• Highly digestible
• Rapidly absorbed
• A complete amino acid profile with BCAAs

These attributes align with expectations for premium performance and nutrition bars.

A Strategic Formulation Strategy: Finding Your Ideal Blend

While using 100% PROtelyze for Bar produces extremely soft bars, Hilmar’s research shows that blending PROtelyze for Bar with a WPI provides the ideal balance of functionality and cost. The perfect blend depends on your specific bar formulation and is something our applications scientists can help with. This approach:

• Extends shelf life more effectively than WPI alone
• Maintains softness without processing drawbacks
• Reduces equipment adhesion risk
• Supports cost‑efficient formulation decisions

Meeting Modern Consumer Expectations – Naturally

Today’s consumers want bars that deliver high protein, clean label positioning and great taste – without artificial softeners or stabilizers. PROtelyze for Bar supports these expectations by improving texture naturally, reducing the need for additives and helping brands maintain label simplicity.

As bars continue to grow in popularity for wellness, performance and everyday snacking, delivering long‑lasting softness and desirable texture is crucial. PROtelyze for Bar gives formulators a powerful tool to overcome protein‑driven hardening, creating bars that stay soft, taste great, and perform throughout their shelf life.

With its proven functionality, clean flavor and strong nutritional profile, PROtelyze for Bar helps brands meet rising consumer expectations and stand out in an increasingly competitive market.

Challenges in Formulating Clear Protein Beverages

Achieving clarity and stability in protein drinks is not easy. Formulators must address several technical considerations:

• Protein Selection: Whey protein isolate (WPI) is the preferred choice for clear beverages due to its high solubility, low fat and lactose, and excellent heat and acid stability. But not all WPIs perform the same. Functional differences in processing can impact clarity, dispersibility and flavor. Selecting a WPI optimized for low pH is essential.
• pH and Heat Processing: Low pH and thermal treatments are challenging for most proteins and can cause denaturation of the protein. Choosing a protein that remains acid-stable and heat-tolerant is critical.
• Sensory Profile: Consumers expect a clean, refreshing taste without chalkiness or off flavors. Foaming issues during mixing can also affect consumer perception for powdered mixes. Find the right WPI that delivers a clean flavor and rapid dispersion with minimal foam to ensure a smooth, refreshing drinking experience.

Why Alternative Proteins Fall Short

Other protein sources such as milk protein, casein and soy protein present significant challenges in low pH systems. They often denaturize in acidic conditions, leading to cloudy beverages. Their lower solubility and heat stability also make them unsuitable for pasteurized or hot-fill processes in RTDs, frequently introducing off-flavors and textures that require masking.

Hilmar 9020: Engineered for Clarity and Performance

Hilmar 9020 is a 90% whey protein isolate specifically designed for protein fortification in low pH beverage applications. Its advanced functional properties make it the ideal solution for formulators seeking clarity, stability and a superior sensory experience.

• Clear in Solution: Hilmar 9020 delivers exceptional clarity in acidic environments, making it ideal for clear ready-to-drink (RTD) and ready-to-mix (RTM) beverages, protein waters and functional sports drinks. Unlike standard proteins that can cause haze or sediment, Hilmar 9020 remains transparent even after thermal processing, ensuring a visually appealing product.
• Superior Dispersibility: One of the biggest challenges in protein beverage formulation is achieving rapid hydration without clumping or excessive foam. Hilmar 9020 disperses quickly and uniformly, reducing mixing time. Its low foaming properties enhance consumer experience in RTM applications where clarity and convenience are key.
• Exceptional Flavor: Hilmar 9020 offers a clean flavor profile that complements fruit-forward and refreshing beverage concepts. This allows formulators to minimize masking agents and maintain a light, crisp taste.
• Heat & Acid Stability: Clear protein beverages often undergo pasteurization or hot-fill processes, which can destabilize proteins. Hilmar 9020 is engineered to withstand these conditions without compromising clarity or texture. Its acid solubility and heat tolerance make it perfect for RTD products.

Applications Beyond Beverages

Hilmar 9020 isn’t just for clear drinks and protein waters. Its versatility also extends to:

• Sports Nutrition: Sports gels and shots.
• Healthy Living: High-protein gummies, gelatin desserts and carbonated protein drinks.
• Healthy Aging: Nutrient-dense RTD beverages designed for older consumers seeking convenient protein solutions.

Why Choose Hilmar 9020

In addition to its advanced functional properties, Hilmar 9020 delivers superior nutritional benefits. It has low lactose and low fat to support clean-label claims and appeal to health-conscious consumers. With complete whey proteins and an excellent amino acid profile, this product is easily digested and provides all the benefits expected from dairy proteins. Hilmar 9020 enables brands to meet the increasing consumer demand for refreshing, high-protein beverages without sacrificing clarity or taste.