In gummy manufacturing, certain steps are fundamental to creating a stable, palatable confection. While minor variations exist based on the gelling agent and desired final texture, the core sequence typically remains consistent. Here is the essential process:
- Ingredient blending and hydration: Dry components (sweeteners, gelling agent like gelatin or pectin, any powdered actives) are combined with water or a liquid syrup and allowed to hydrate. This step dissolves and activates the gelling system.
- Cooking and dissolving: The slurry is heated to fully dissolve sugars and activate the gelling agent, reduce water content, and reach the desired Brix level. This produces a uniform, flowable mass, and the final texture and stability depend on this step.
- Addition of heat-sensitive ingredients: After cooking, the mass is cooled slightly before adding acids, flavors, colors, and sensitive functional ingredients. This preserves their potency and prevents premature gelling or flavor degradation.
- Depositing: The liquid mass is precisely deposited into starch-molded or silicone-coated molds. This step defines the shape, weight, and uniformity of each gummy.
- Cooling and setting: The filled molds pass through a cooling tunnel or conditioned room where the mass gels and solidifies into a stable form.
- Demolding: Once set, the gummies are separated from the molds. For starch-molded products, this involves a starch separation process; for coated molds, a simple release.
- Finishing and conditioning: This may include oiling, sugaring, or other surface treatments, as well as a controlled drying or curing phase to reach the optimal moisture content and texture. Drying is especially important for gummies that are too soft after demolding. The product is then inspected, packed, and readied for shipment.
One step can be designed out with careful engineering and formulation: the drying or conditioning step. If a high-solids syrup is used and the cooking process reaches a sufficiently low moisture content, the gummies can achieve the desired firmness and water activity right out of the depositor, eliminating the need for a post-demolding drying phase. This is a common strategy for starch-free, quick-set formulations. However, this approach demands precise control over Brix, gelling agent ratio, and depositing temperature to prevent premature setting or syneresis. At KorNutra, our R&D team works closely with brands to tune these parameters, balancing process efficiency with the exact mouthfeel and stability requirements of the final product. While the drying step can be designed out, the core steps of blending, cooking, depositing, setting, and demolding remain irreducible for any gummy product.
Trade-offs of designing out the drying step
Removing drying is not free. In a starch-molded line, the starch absorbs water from the gummies while they sit, which gives the formulator a buffer: the deposit can go in a little wetter, and the starch room finishes the job over a day or more. A starchless line with silicone or metal molds has no such buffer. Those molds do not absorb water, so all of the final moisture has to come out in the cooker before depositing. The cook has to land the finished moisture on its own, and a hotter, drier cook makes the mass set faster and narrows the depositing window. Some formulas still need a short conditioning phase after demolding to reach their target surface, moisture distribution, or texture. Skipping drying works when the formula's finished moisture is low enough to hit in the cooker.