If you're making gummy supplements, humidity is one of those things that can quietly wreck everything. Too much moisture and your gummies stick together, get mushy, or worse—grow mold. Get it right, though, and they'll stay chewy, stable, and shelf-ready from production to the consumer's hands. Here's how to keep humidity under control.
Why Humidity Matters
Gummies are basically sponges. They pull moisture from the air, which causes a cascade of problems:
- Sticking and clumping: Excess moisture makes gummies stick together in bulk or in packaging.
- Texture goes off: They get too soft, lose that chew, or dry out and turn hard.
- Microbial growth: High moisture invites mold and bacteria, which is a safety risk.
- Ingredients degrade: Active ingredients and vitamins can break down.
- Packaging trouble: Labels peel, seals fail.
How to Tackle It
1. Control the environment
The production area—especially cooling, demolding, and packaging zones—needs tight climate control. Use industrial dehumidifiers and HVAC to keep relative humidity between 30–45% (exact target depends on your formula). Monitor continuously with calibrated hygrometers. Seal the facility so outside air doesn't sneak in.
2. Tweak your recipe and process
Start with your formulation. Use humectants like sorbitol or glycerin to manage water activity. Starches and gums can help bind water too. After depositing into molds, a controlled drying or curing stage is crucial. This removes surface moisture and sets the texture. A light dusting of citric acid-sugar blend or modified starch after demolding reduces stickiness.
3. Lock it in with packaging
Even if you nail production, bad packaging can ruin everything. Choose high-barrier materials—foil-lined pouches, stick packs, or bottles with desiccant inserts. Make sure your packaging equipment seals completely. For bulk containers, consider nitrogen flushing to displace moist air.
Get the Right Partner
You don't have to figure this out alone. An experienced supplement manufacturer brings purpose-built facilities with proper climate controls, proven formulations, and validated packaging. They'll help you deliver a consistent, high-quality gummy that your customers will love.