Log in
It's mid-August, the mail truck is a rolling oven, and your beautiful gummy bears just arrived at your customer's door as a single fused brick. Or maybe they never left the kitchen counter before slumping into a puddle. Either way, the question is the same: why do homemade gummies melt, and how do you stop it?
The good news: melting is almost always a formula or storage problem, and both are fixable. Here's a practical late-summer guide for home candy makers and small brands alike.
Why Gummies Melt in the First Place
Standard gelatin gummies begin to soften around body temperature and can fully melt in a hot car, mailbox, or sunny windowsill. Three factors decide how much heat your gummies can take: gelatin strength and concentration, moisture content, and storage conditions.
A weak gel — too little gelatin, or gelatin that was boiled and damaged — melts fastest. High moisture from under-cooking or skipped curing time comes second. And even a perfect gummy will fail in a 120°F delivery truck.
Fix #1: Strengthen Your Gel
Start with a quality high-bloom gelatin like our 275-bloom Gelatin — bloom strength measures how firm the finished gel sets, and higher bloom means a chewier, more heat-tolerant gummy. Never boil your mixture after the gelatin goes in; sustained high heat breaks down the protein structure that holds a gummy together. Heat gently, stir until dissolved, and pour.
If you're starting from zero, our complete gummies-from-scratch guide covers ratios in detail, and the gummy ingredients collection has the core supplies in one place.
Fix #2: Cure Before You Store or Ship
Fresh gummies are full of moisture. Letting them air-dry uncovered for 24–72 hours (turning once or twice) lets excess water evaporate, which firms the chew and raises melt resistance noticeably. Skipping the cure is the single most common reason summer gummies turn sticky. For shelf-life details, see our guide on how long homemade gummies last.
Fix #3: Watch Your Coatings
Sugar-and-acid sour coatings pull moisture out of the air in humid August weather, turning gummies wet and sticky — a process that looks a lot like melting. If your sour gummies are "sweating," the coating is usually the culprit. Our sour coating guide and our breakdown of the different acids for gummies explain how to coat without the weep.
Fix #4: Store Cool, Dark, and Sealed
Keep finished gummies in an airtight container below about 70°F, away from sunlight. A sunny countertop can hit gummy-softening temperatures even in an air-conditioned kitchen. Silicone molds help here too: leaving gummies in silicone candy molds until fully set, then storing them in a single layer with parchment between layers, prevents fused clumps. (More mold tips in our Gummy Molds 101 guide.)
Fix #5: Ship Smart (For Small Brands)
If you sell gummies, summer shipping needs a plan: insulated mailers, food-safe cold packs, early-week shipping so packages don't sit in a hot warehouse over the weekend, and a "hold at location" option for hot regions. Many small brands also print a friendly "keep me cool" note on the package. Our commercial gummy production guide digs deeper into formulation tweaks that professional producers use for heat tolerance.
Does Flavoring Affect Melting?
Not meaningfully — concentrated flavor oils are dosed in drops, far too little to change your gel structure. That means you can flavor boldly from our gummy flavoring collection without worrying about texture. Start with ⅛–¼ teaspoon per standard batch, taste, and adjust.
FAQ
Why are my gummies melting at room temperature?
Usually a weak gel: too little gelatin, gelatin damaged by boiling, or insufficient curing time. Increase gelatin concentration, keep heat gentle, and cure for 24–72 hours before storing.
Can I ship gummies in the summer?
Yes, with precautions — cure fully, use insulated packaging with a cold pack, ship early in the week, and choose faster transit times during heat waves.
Do gummies need to be refrigerated?
Properly cured gummies keep at cool room temperature in an airtight container. Refrigeration can extend firmness in hot climates, but let containers come to temperature before opening to avoid condensation.