From the perspective of a single sugar crystal entering the gummy production line, its journey is a precise balance of heat, moisture, and time. Our process at KorNutra is designed to guide each crystal through controlled phases to achieve the perfect gummy texture-chewy, stable, and shelf-stable without unwanted graininess.
Phase 1: Dissolution
The journey begins when the dry sugar crystal hits the hot water and corn syrup mixture. As the solution heats to around 240°F (115°C), the crystal's outer layers start to lose their rigid structure. Water molecules wedge between the sucrose molecules, breaking the crystal lattice. By the time the syrup reaches boiling, the crystal is fully dissolved into a homogeneous, clear liquid-no longer recognizable as a crystal.
Phase 2: Amorphous State
Once dissolved, the sugar molecules are dispersed in a supersaturated solution. As the syrup cools and gelatin is added, the molecules do not immediately re-form crystals. Instead, they enter an amorphous (glassy) state. This is critical: if the syrup is cooled too slowly or agitated, crystals can seed. But in our controlled process, the rapid cooling and continuous mixing keep the sugar in a non-crystalline, viscous gel. This amorphous structure is what gives gummies their smooth, chewy texture.
Phase 3: Recrystallization (Controlled)
In some gummy production, a small amount of recrystallization is intentional-called graining. However, for standard soft gummies, we work hard to prevent recrystallization. If moisture evaporates too quickly or if the gummy is stored at fluctuating temperatures, tiny crystals can form, making the gummy gritty. At KorNutra, our drying and cooling chambers maintain steady conditions (low humidity and stable temperature) to keep the sugar locked in its amorphous state.
What determines the final outcome?
- Temperature and time: Rapid cooling favors amorphous; slow cooling can allow reordering into crystals.
- Moisture content: Too much water left can act as a solvent, allowing crystals to form over weeks. We dry to a precise water activity.
- Inhibitors: Ingredients like corn syrup and gelatin interfere with crystal formation, stabilizing the amorphous state.
So for a single crystal entering our line: it dissolves in the cooker, then the molecules are locked into an amorphous state by our cooling and drying processes. Provided conditions remain consistent, they stay that way-giving you a perfectly smooth gummy every time.