Master the Blend: How to Use Cooling Agent WS-3 (Koolada) in Formulation

The Art of Blending: How to Use Cooling Agent WS-3 (Koolada) in Formulation

In the competitive world of e-liquid and food manufacturing, creating a standard "cold" product is no longer enough. Sophisticated consumers now demand a multi-dimensional sensory experience. They want to feel the chill not just on their tongue, but deep in their throat, mimicking the exact sensation of inhaling a real icy breeze.

To achieve this 3D cooling effect, master formulators rely on the art of blending different cooling agents. And the undisputed backbone of this technique is Cooling Agent WS-3, widely known in the vape industry as Koolada.

While WS-23 is famous for its upfront, aggressive burst of ice on the tongue, WS-3 is the ingredient that provides the deep, satisfying throat-hit and longevity. Here is a professional guide on how to utilize and blend WS-3 in your formulations.

Understanding WS-3: The Throat-Cooling Champion

Chemically known as N-Ethyl-p-menthane-3-carboxamide, WS-3 is a menthol derivative. However, during the synthesis process, the distinct peppermint odor is removed, leaving a pure, raw cooling sensation. Here are its defining characteristics:

• Impact Location: Back of the throat, roof of the mouth, and the back of the tongue.
• Sensory Profile: It delivers a smooth, steady, and lingering chill. It takes a second or two to activate but lasts significantly longer than WS-23.
• The "Throat Hit" Mimic: For vape manufacturers, WS-3 is critical because the sensation it creates in the throat perfectly replicates the satisfying hit that smokers and vapers crave.
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The Million-Dollar Combo: Blending WS-23 and WS-3

If you use only WS-23, the vape or beverage will feel very cold on the first draw, but the sensation will fade quickly and feel hollow in the back of the throat. If you use only WS-3, the cooling effect will feel too slow and heavy.

The secret lies in synergy. By combining the two, you cover the entire oral cavity from front to back. Here are the two most successful industry blending ratios (based on a standard 30% solution of each compound in Propylene Glycol):

Technical Handling: Solubility and Avoiding Bitterness

While WS-3 is incredibly potent, it requires more technical care than WS-23 during the manufacturing process. Product developers must keep two factors in mind:

1. Solubility Issues
Unlike WS-23, which dissolves easily in water, WS-3 is heavily lipophilic (fat-loving). It has very low solubility in pure water. To formulate with WS-3, you must first dissolve the crystals in Propylene Glycol (PG) or ethyl alcohol at a temperature of 40°C to 50°C. Once fully dissolved, it can be seamlessly introduced into your e-liquid or beverage base.

2. The Bitterness Threshold
WS-3 is highly efficient. However, if you overdose it (typically going above 1.5% to 2% of total volume in the finished product), it can leave a slight chemical, bitter, or metallic aftertaste on the palate. Always use a high-quality sweetener (like Sucralose or Stevia) to anchor and smooth out high-percentage WS-3 blends.

Frequently Asked Questions (FAQs)

Q: Can I replace menthol entirely with WS-3?
A: Yes. Many premium e-liquid brands replace menthol with WS-3 because they want the strong throat cooling effect without the herbal mint taste that mutes fruit profiles like mango or strawberry.

Q: Will heating WS-3 during mixing damage its cooling potency?
A: No. WS-3 is extremely heat-stable. Gentle heating up to 60°C to facilitate dissolution in PG will not degrade the molecule or reduce its cooling intensity.

Source High-Purity WS-3 from Xian Taima

Because WS-3 directly interacts with the throat, the purity of the raw material is paramount. Low-grade WS-3 often contains residual menthol impurities that ruin the flavor profile or cause unnecessary harshness.

At Xian Taima, we specialize in high-purity, premium-grade cooling agents. Our WS-3 crystals are strictly tested for zero off-notes, ensuring the cleanest throat hit for your brand. Whether you need pure WS-3 powder or customized WS-23/WS-3 blends, our technical team is ready to support your large-scale production.

Contact Xian Taima today to receive technical data sheets and free samples for your R&D lab.

Learn Cooling Agent WS-23 Mixing Ratios & Formulation Guide