From the perspective of a single sugar crystal entering the gummy production line, its journey is a precise balance of heat, moisture, and time. At KorNutra, we guide each crystal through controlled phases to hit that perfect gummy texture—chewy, stable, and shelf-stable, with no unwanted graininess.
Phase 1: Dissolution
The crystal hits the hot water and corn syrup mix. As the solution heats to around 240°F (115°C), the crystal's outer layers start to break down. Water molecules wedge between sucrose molecules, cracking the lattice. By the time the syrup boils, the crystal is fully dissolved—a clear liquid. No longer a crystal.
Phase 2: Amorphous State
Once dissolved, the sugar molecules hang in a supersaturated solution. As the syrup cools and gelatin goes in, they don't immediately re-form crystals. Instead, they enter an amorphous (glassy) state. That's critical: cool too slowly or agitate, and crystals seed. But with rapid cooling and steady mixing, the sugar stays non-crystalline. That's what gives gummies their smooth, chewy texture.
Phase 3: Recrystallization (Controlled)
Some gummy production deliberately allows a little recrystallization—called graining. But for standard soft gummies, we want to prevent it. If moisture evaporates too fast or temperatures swing, tiny crystals form and make the gummy gritty. At KorNutra, our drying and cooling chambers lock in the amorphous state with steady, low-humidity conditions.
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 acts as a solvent, letting crystals form over weeks. We dry to a precise water activity.
- Inhibitors: Ingredients like corn syrup and gelatin get in the way of crystal formation, stabilizing the amorphous state.
So for a single crystal entering our line: it dissolves in the cooker, then the molecules lock into an amorphous state during cooling and drying. Keep conditions consistent, and they stay that way—giving you a perfectly smooth gummy every time.