The starch mogul, in use since around 1899, still sets the baseline for gummy economics. In a mogul line, trays of conditioned cornstarch are imprinted with cavities, filled by a depositor, and left to cool and dry, sometimes for up to 24 hours, before the pieces are screened out and the starch is recycled. The process is continuous, but it carries constant starch-handling costs: conditioning, dust control, and labor for tray movement and cleaning. Starchless depositing replaces the starch bed with reusable metal or silicone molds on a moving conveyor with in-line cooling. It never replaced the mogul outright. The two processes run side by side, and starch lines still dominate high-volume production of classic shapes like gummy bears. The 1980s enter this story through demand, not machinery: gummy candy went mass-market in the United States in that decade as Haribo expanded into the American market, while starchless depositing matured into a commercial alternative to the mogul within the last two decades.
What starchless depositing changes about the economics
- No starch handling: Starchless lines remove starch conditioning, dust collection, and mold printing from the process. That cuts a major operating expense and lowers the risk of cross-contamination between batches.
- Less labor: Automated depositing, in-line cooling, and demolding reduce the number of operators needed per shift.
- Faster set, smaller footprint: Product is deposited at final solids and cooled in-line, so pieces release from the mold in minutes rather than after a day in starch. A compact line fits in far less floor space, lowering real estate and environmental control costs.
- Upfront mold investment: Mold sets and depositing equipment are a real capital cost, and dedicated molds per shape add storage and cleaning. The savings show up over time in labor, floor space, and starch handling.
For a manufacturer, the savings are concentrated in operating costs: less starch, fewer operators, and a smaller conditioned space. That is not the same as higher raw throughput. Mogul lines remain the proven choice for very large runs of one classic shape, which is why commodity gummy bears are still starch-molded. Contract manufacturers like KorNutra run programmable depositors with either starch or silicone molding, matching the process to the product rather than to one fixed line.
What was lost in flexibility
The trade-offs are real, but they sit in the formulation and the budget rather than in shape detail.
- Formulation and setting window: Mogul lines tolerate runny, slow-setting recipes because the starch bed holds and dries the piece over hours. Starchless depositing needs a formula that sets fast enough to release in minutes, which tightens the window for very soft or high-moisture products. Gelatin pieces also give up the starch drying step that draws out moisture and builds chew, so starchless gelatin lines lean on gelling agents and setting aids to reach a similar texture.
- Shape detail: Starch can capture undercuts because the piece is freed from a loose powder bed, and the first starchless machines managed mostly simple convex shapes. Modern silicone and metal molds with release agents now carry 3D forms, logos, and lettering, so this gap has narrowed.
- Changeover economics: The old assumption that mogul lines switch recipes more easily runs the other way for shapes. Starchless lines swap mold plates quickly and skip starch reconditioning, which makes them the better fit for short runs and frequent SKU changes. Mogul lines earn their keep on long, uninterrupted runs of one established shape.
- Filled and layered designs: Center-filled and layered gummies need synchronized, multi-shot depositing. This was once the mogul's edge, but modern programmable depositors now handle multi-layer and filled gummies directly, so the gap here has mostly closed as well.
Starchless depositing and clean-label claims
For supplement brands, the molding method is also a claims question. In a mogul line, the same conditioned starch bed is recycled across batches and products, which makes that shared starch a cross-contact pathway for any brand asserting gluten-free, allergen-free, or strict non-GMO status. Starchless lines remove the shared starch bed and use product-specific molds that are washed between runs, so the allergen and dust controls are simpler and the surface finish stays consistent. The trade-off is that dedicated molds per SKU add cost and storage. A brand that sells on free-from claims may find that expense cheaper than documenting starch segregation on a mogul line.
Neither process displaced the other. Mogul lines still run the highest-volume classic shapes, while starchless depositing has become common for functional gummies, filled pieces, and brands that change shapes or SKUs often. Each process wins where its constraint set fits the product.