Gummy OEM Packaging and Logistics: Anti-Stick, Moisture Barrier and Summer Transport Control
Gummies are the format most likely to leave the factory looking perfect and arrive at the customer in trouble. Depositing, demoulding and drying all ran normally; water activity and texture passed. Two weeks in a southern warehouse and the pieces have fused into a block, or the inside of the pouch is coated in sugar bloom. Trace these complaints to the end and most turn out not to be formulation problems at all, but packaging and transport decisions that never matched the product's hygroscopic behaviour. In gummy OEM projects the packaging and logistics plan belongs in the sampling stage, not improvised once finished goods exist.
1. Understand how gummies actually fail
There are three main failure modes. The first is blocking: the surface turns tacky again once temperature passes the softening point or the product picks up ambient moisture, and pieces stick to each other and to the film. Gelatin gummies are especially sensitive above roughly 30 degrees Celsius. The second is sugar bloom, where a high sucrose ratio and poorly controlled reducing sugars drive crystallisation to the surface, leaving a white haze and a gritty mouthfeel. The third is moisture loss, where dry conditions or a poor barrier turn a chewy piece hard and tough. Each has a different answer: blocking is solved through temperature control and anti-stick treatment, bloom through the sugar ratio in the formula, moisture loss through barrier properties. Reading the symptom identifies the cause - clumping means blocking, white haze means bloom, hardening means drying out.
2. Primary packaging: trading anti-stick against barrier
Primary packaging for gummies always involves a trade-off. Anti-stick can be handled two ways: a thin coating of glazing or anti-stick oil applied to the piece, which lowers surface tack, or a treated film such as siliconised paper, waxed paper or a coated OPP. The coating route is cheaper but adds a lipid component that has to appear in the ingredient declaration. The treated film is more consistent but noticeably more expensive per unit. Barrier performance comes down to water vapour transmission rate. Standard OPP offers essentially no moisture barrier; a metallised laminate such as PET/VMPET/PE can cut transmission by an order of magnitude, at the price of opacity. In practice, gummies held below 0.6 water activity with an anti-stick oil can run in clear pouches with a desiccant sachet, whereas high juice loads or higher water activity justify metallised laminate from the start.
3. Bottles, pouches and stick packs
Bottles offer compression resistance, a reliable seal and repeated access after opening, which suits 60 to 120 count formats; the penalties are the cost of the bottle and desiccant and the volume they occupy in transit. Pouches have the lowest material cost and the largest billboard area, but poor crush resistance means stacking height has to be controlled or the bottom layers deform and block under sustained load. Stick packs give the best barrier per piece and genuine portability, but the packing line runs slower and film waste is higher, typically two to three times the cost of a pouch, which only makes sense for premium functional gummies. Always run two calculations: the material price difference and the freight difference caused by pack volume. Bottle savings on material are frequently handed straight back to the shipping line.
4. Cartoning, stacking and transit
Three variables at the cartoning stage tend to be overlooked. First, packing temperature: gummies must cool to ambient in the drying room before packing, because packing warm creates condensation inside the carton and invites blocking and mould. Second, stacking height: cartons are specified by compressive strength against a stack height, and that strength drops by 20 to 30 per cent in hot humid conditions, so summer warehouse stacking should be one or two layers below the standard specification. Third, desiccant loading, calculated from total packaging surface area and target shelf life, generally 1 to 2 g of silica per litre of pack volume, towards the upper end for humid markets.
5. Summer and rainy-season shipping
Shipments to southern and eastern China in July and August produce the highest complaint volume of the year. Where temperature-controlled linehaul is available, use it and put a data logger in the carton. Where it is not, fall back on passive insulation with gel packs and shift loading to night or early morning to avoid the daytime peak inside a sealed container, which can reach 50 to 60 degrees Celsius at midday in summer. On arrival, do not open immediately: let the cartons equilibrate in a cool area for four to six hours so condensation does not form on the pieces themselves. For sea freight, container rain is an additional risk, so hang desiccant strips in the container and leave air channels in the stack.
6. Write the requirements into the specification
A packaging and logistics plan only holds if it is specified. Internal standards should state the maximum core temperature before cartoning, the temperature and humidity band in the packing room, desiccant type and loading, carton compressive strength and permitted stack height, and the requirement for transit temperature records. These clauses look pedantic until a complaint arrives, at which point they are the only way to trace which link failed and who carries the cost. Brand owners should also settle, in the contract itself, how many days after delivery a quality claim remains valid.
Related Products
Greens Gummies with Multivitamin, Spirulina & Prebiotic Fiber | GREENS GUMMIES Supplement OEM | Feminine Balance Probiotic Gummies with Cranberry | Feminine Balance Gummies OEM
About Guangzhou Mesen Health Biotechnology Co., Ltd
Guangzhou Mesen Health Biotechnology Co., Ltd is located in the Huashan Science and Technology Park, Huadu District, Guangzhou. The company has focused on OEM and ODM services for the big health industry for nearly 20 years, operating dedicated research, production, sales and management centres, and maintaining long-term strategic partnerships with well-known Chinese medicine colleges and research institutions. Capabilities span pressed candy, gummies, capsules, solid beverages, herbal teas, plant beverages, protein powders, dietary supplements and enzyme jelly - from formulation development through contract manufacturing. For details on minimum order quantities, sampling lead times and quotations, see our manufacturing advantages and product range, or contact us for a tailored proposal.
Further Reading
