Combining the depositing step with vacuum-a technique we call vacuum depositing-is one of the most effective ways to improve both the clarity and texture of your finished supplements. At KorNutra, we often recommend this approach to clients who seek a premium, air-free product appearance and a smoother mouthfeel.
When you deposit liquid or gel blends under vacuum, trapped gases are pulled out before the product sets. This directly reduces air bubbles, which are a common cause of cloudiness, surface pitting, and uneven texture. Here’s how that affects the final outcome:
Improved clarity
Air bubbles scatter light, making transparent or translucent supplements look hazy or milky. Vacuum depositing removes these micro-bubbles, allowing light to pass through unobstructed. The result is a crystal-clear product-ideal for softgels, chewable gels, or liquid-filled capsules where visual appeal matters.
Enhanced texture and consistency
Without air pockets, the final texture becomes more uniform and dense. You’ll see fewer voids or soft spots, and the product will feel smoother when handled or consumed. This is especially beneficial for gummies or gelcaps, where a consistent, almost silky texture is a sign of high quality.
- Eliminates surface defects - No bubble craters or rough spots after solidifying.
- Reduces oxidation - Less trapped air means lower risk of ingredient degradation over time.
- Improves weight consistency - Filling is more precise because there’s no gas taking up space.
Process considerations
To achieve these benefits, the vacuum must be applied during the depositing step-not just after. The liquid or molten mass is held under a controlled vacuum while it’s dispensed into molds or capsules. This ensures bubbles are removed from the bulk material before it sets, rather than relying on a separate degassing step that might reintroduce air.
What not to expect
Vacuum depositing won’t change the inherent clarity of your ingredients. If the base formulation itself is cloudy (e.g., from natural oils or suspended particles), the final product may still have a slight haze. However, for clear or transparent formulas, vacuum deposition is a game-changer.
At KorNutra, we integrate this technique into our custom manufacturing workflows to help you achieve a flawless, professional finish. If you’re exploring options for your next supplement line, vacuum depositing is a powerful tool to elevate the quality and visual appeal of your final product.