The shift from traditional starch mogul systems to continuous depositors in the 1980s fundamentally reshaped the cost structure and scale of gummy manufacturing. Before this innovation, gummies were made in a batch process using trays of starch molds. Each tray had to be filled, cooled, and manually demolded, requiring extensive floor space, enormous amounts of conditioned starch, and constant labor for handling and cleaning. Continuous depositors eliminated the need for starch molds altogether by depositing the liquid gummy mixture directly onto metal or silicone molds on a moving conveyor belt, often with in-line cooling tunnels.
How economics were transformed
- Dramatically higher throughput: Continuous lines could run 24/7 at speeds that mogul lines simply couldn’t match, skyrocketing production capacity per square foot of factory space.
- Elimination of starch-handling costs: No more starch conditioning, dust collection, or mold printing. This removed a major operational expense and lowered the risk of cross-contamination between batches.
- Reduced labor: Automated depositing, cooling, and demolding slashed the number of operators needed per shift.
- Lower waste: Precise depositing controls reduced overfills and rejected pieces, while faster cooling cut the chance of deformities.
- Smaller footprint: Without starch rooms and long cooling lines, a high-volume line could fit in a fraction of the space, lowering real estate and environmental control costs.
For manufacturers, this meant the unit cost of a gummy plummeted, enabling mass-market pricing and the explosive growth of the gummy supplement and confectionery industries. Modern contract manufacturers like KorNutra leverage advanced continuous depositing technology to pass these efficiencies on to brands, offering cost-competitive, high-volume production without the overhead that haunted older processes.
What was lost in flexibility
While continuous depositors were an economic breakthrough, they came with trade-offs in product versatility that traditional mogul lines took for granted.
- Shape limitations: Starch molds could create almost any 3D shape-animals, letters, complex logos-because the gummy slurry settled into a cavity. Early continuous depositors were largely restricted to simple convex shapes like bears or worms that could release cleanly from metal molds. Intricate undercuts or thin protrusions were off the table.
- Texture and formulation freedom: Mogul lines handled a wide range of viscosities and setting behaviors. Continuous depositors demanded a tightly controlled fluid rheology; too thick or too fast-setting and the nozzle clogged, too thin and the shape collapsed. This narrowed the window for very soft, jelly-like textures or high-fruit-content formulations.
- Short-run feasibility: Setting up a continuous line and tuning the depositing parameters took time. Mogul systems, by contrast, could easily switch between molds and recipes for small batches, making them friendlier for limited editions or test markets.
- Multi-layer or filled gummies: Traditional starch processes allowed filling to be injected mid-mold or multiple layers to be deposited sequentially with relative ease. Continuous lines required extra synchronization and were slower to adapt for center-filled or layered designs.
Over time, innovation has narrowed this gap-modern servo-driven depositors can produce more complex shapes and textures, and hybrid systems exist-but the 1980s shift permanently tilted the industry’s priority toward speed and cost efficiency over the artisanal flexibility of the mogul era.