Drying temperature is a critical parameter in gummy manufacturing, but it does not scale linearly with gummy size. Drying conditions are set by the gummy's mass, surface area, and internal moisture diffusion rate, and for gelatin and pectin gummies the temperature stays in a narrow low range no matter the size. What changes is drying time and how humidity is managed.
How Drying Temperature Changes with Size
As gummy size increases from a bear (~2g) to a worm (~5g) to a giant bear (~20g), the drying temperature shouldn't climb. For gelatin and pectin gummies the room stays near 21°C (70°F) with a ceiling around 27°C (80°F); what scales with size is drying time and humidity control.
- Mass and surface area scaling: Larger gummies have a smaller surface-area-to-volume ratio. A bear (2g) has relatively high surface area per unit mass, allowing faster moisture evaporation. A giant bear (20g) has much lower relative surface area, meaning moisture must travel further from the core to the surface.
- Internal moisture diffusion: In larger gummies, moisture moves from the center to the outer layer more slowly. If you raise the temperature to speed drying, the outer surface can over-dry, harden, or “skin over” while the interior remains wet. This leads to cracking or uneven texture.
- Optimal temperature and time ranges: Based on standard gelatin and pectin gummy practice:
- For a 2g bear: hold the room near 21°C (70°F) at 30-40% relative humidity, typically for 12-24 hours.
- For a 5g worm: keep the same temperature and extend the cycle to roughly 24-48 hours. The added mass needs more time to release moisture evenly.
- For a 20g giant bear: keep the room below 27°C (80°F), drop the humidity, and plan on 48-72 hours. Higher heat melts gelatin and case-hardens the surface before the center dries.
Starch-gelled candies are the one temperature exception: wine gums and licorice cure at 50-70°C (122-158°F) over 48-72 hours. That range applies to starch-set products rather than gelatin or pectin gummy bears, so it shouldn't be borrowed for bear and worm formats.
Key Considerations for Manufacturers
Humidity and air flow matter as much as temperature. Drying is driven by low humidity, so aim for 30-40% relative humidity and add dehumidification rather than extra heat when the room runs humid. Adequate air circulation removes surface moisture, but for giant gummies, strong airflow combined with higher temperature can case-harden the surface. It's safer to dry longer at low temperature than to rush a batch with more heat.
We recommend running small-scale tests when scaling gummy sizes. Because drying runs near 21°C, the core stays below the roughly 40°C (104°F) point at which gelatin gel strength and viscosity begin to weaken, which protects the network in large gummies. Adjust the drying curve based on product weight and desired chewiness.
Why longer drying cycles raise unit cost
Drying time is floor-space time. Gummies dry in starch trays inside conditioned rooms, and a tray that sits for 72 hours occupies capacity that a faster SKU could cycle three times over. When a brand quotes a giant-bear format, the drying cycle is a line item: more days in the room, more work-in-progress waiting to be tested and released, and more dehumidifier run-time to hold 30-40% relative humidity.
The energy side compounds in humid climates. A dehumidifier pulling moisture from the room air runs through the whole cycle, and a 20g piece's 48-72-hour window extends that draw. Large formats remain worth producing, provided the price reflects the capacity they consume. A manufacturer that quotes a bear and a giant bear at the same piece rate has either absorbed the drying cost or not counted it.
Remember
At KorNutra, we focus on process optimization for each specific gummy profile. Never assume a one-size-fits-all temperature. Always match drying parameters to the physical dimensions and formulation of your product.