Cold Chain Packaging

Cold chain packaging materials are the insulated boxes, gel ice packs, cooler bags and temperature-monitoring tools used to transport bee products that must be kept cold, such as royal jelly, fresh pollen and bee bread, within a set temperature range from the apiary to the buyer. In Türkiye, the Turkish Food Codex makes it mandatory to keep fresh royal jelly, bee pollen and bee bread at +8 °C or below from production to the final consumer; this rule also applies during transport and shipping. Honey does not need a cold chain but must be protected from excessive heat in transit.

What is the cold chain, and why does it matter for bee products?

The cold chain means keeping a product below a set temperature at every stage, without interruption, from harvest to the consumer. If one link in the chain breaks, for example if royal jelly sits for half a day in a delivery van in the sun, the quality lost does not come back, even if the product is cooled again later.

• Royal jelly: The most heat-sensitive bee product. The international royal jelly standard (ISO 12824) recommends keeping it at +2 to +5 °C or, for long-term storage, below −18 °C.
• Fresh pollen and bee bread: Because they are moist, mould and yeast develop in warm conditions.
• Dried pollen and powdered royal jelly: No cold chain is required; they are transported protected from moisture and heat.
• Honey: No cooling is needed. In Türkiye, the Communiqué on Honey requires honey to be protected from direct sunlight and kept at no more than 25 °C from filling to the consumer.

What cold chain packaging materials are there?

Insulated boxes

The foundation of the packaging. Expanded polystyrene (EPS, styrofoam) boxes are light and widespread; polyurethane foam boxes insulate better and stand up better to reuse. There are also special boxes with vacuum insulation panels for long journeys. The thicker the walls and the fuller the box, the longer the internal temperature is maintained.

Gel packs and ice packs

They are the "cold source" inside the box. Gel packs frozen in the freezer provide cold below 0 °C; gel packs chilled in the refrigerator help keep the product in the cool range, above freezing point.

• For frozen products: Use packs frozen solid in the freezer.
• For chilled (unfrozen) products: If a frozen pack touches the product directly, part of it can freeze and thaw. Leave a layer of cardboard or insulation in between, or use packs conditioned in the refrigerator.
• Quantity: Increase the number of packs according to journey time, season and box size. More packs are needed in summer and for long shipments.

Dry ice

It can keep frozen products at very low temperatures for a long time. But dry ice is solid carbon dioxide; it gives off gas as it sublimates. It must not be put in a completely sealed container, must not be handled with bare hands, and closed vehicles and rooms need ventilation. There are special rules and declaration requirements for dry ice in courier and air transport; consult the carrier before shipping.

Cooler bags and insulated carriers

Practical for short-distance transport from the apiary home, or from the market to the customer. They are also used in the field during royal jelly harvest: the collected product goes straight into a bag chilled with gel packs or into a compressor cooler running off the vehicle battery.

Temperature-monitoring tools

• Temperature logger (data logger): Records the temperature at set intervals throughout the journey. For bulk and valuable shipments it provides evidence for both the buyer and you.
• Single-use temperature indicator: A label that changes colour when a set temperature is exceeded; a simple, cheap check.
• Thermometer: For measuring the product temperature at packing and on delivery.

How do you pack royal jelly and pollen for the cold chain?

1. Pre-cool the product: The box does not cool the product, it only keeps it cold. The product to be packed should be at refrigerator or freezer temperature.
2. Condition the box: Keep the insulated box in a cool place before packing; a box that has been sitting in a warm store uses up some of the cold in the first few hours.
3. Put the product in a leak-proof container: Royal jelly goes in light-proof containers with tight lids; the containers are also placed in a zip bag so condensation does not ruin the label.
4. Position the packs: Distribute packs below, above and around the product; since cold sinks, the top layer matters.
5. Fill the gaps: Air space in the box speeds up warming. Fill gaps with paper or insulation material.
6. Close and mark: Tape the box shut firmly; add warnings such as "cold chain", "refrigerate immediately" and "this way up".
7. Plan the dispatch: Send shipments early in the week; avoid parcels that will sit in a depot over a weekend or holiday. Choose same-day or next-day delivery if possible.

The cold chain by season

What should you look for when choosing packaging materials?

• Insulation time: The number of hours the box maintains its internal temperature should exceed the shipping time.
• Match to product quantity: A large box for a small amount of product means a lot of empty space and fast warming.
• Durability: An outer carton thick enough not to be crushed in transit.
• Food safety: The container in direct contact with the product must be food-grade; gel packs and insulation must not touch the product directly.
• Reuse and waste: Polyurethane boxes and gel packs can be reused; single-use polystyrene is an environmental problem.

Common mistakes

• Putting warm product in the box: An insulated box does not cool; the product must be pre-cooled.
• Not adjusting the number of packs to the season: What is enough in winter is not enough in summer.
• Shipping on a Friday: A parcel sitting in the depot over the weekend breaks the chain.
• Letting frozen packs touch the product directly: Part of the chilled product freezes, then thaws.
• Keeping no records: If there is a complaint, you cannot show under what conditions you shipped.