Sustainable Food Cold Chain Solutions FAQs
Got chilled meals, frozen treats, or pet-food parcels to ship? Here are our top questions answered fast, friendly, and fuss-free.
General Products
We supply insulated boxes, pouches, liners, and ice packs built specifically for fresh, chilled, or frozen food delivery.
General Products
Durable boxes either taped or die-cut presentation boxes with liner kits for maximum temperature control. Choose 100% award-winning pure wool or vegan denim insulation in sizes suited for small to high-volume orders.
General Products
You can purchase the pouches or liners with or without boxes. All perfect to blanket your foods in to ensure they stay cold all the way to your client and are blanketed all the time during shipping.
General Products
Choose DuraCool (chilled) or DuraFreeze (frozen) reusable ice packs that work perfectly with our insulated boxes and liners. Note: Ice packs cannot be returned via our circular scheme. Please recycle them locally; the gel is non-toxic and drain safe.
Sustainability & Circularity
Send back a minimum of six WoolPac or denim liners/pouches via Royal Mail and we’ll reuse them — reducing waste and closing the loop on packaging.
Sustainability & Circularity
Sustainability drives everything we do.
Our wool is responsibly sourced from European and British farms.
All components are recyclable or reusable.
We’re proud winners of the Innovation in Wool Award at the Great Yorkshire Show.
Materials & Vegan Options
We use two insulation types:
Wool
100% pure, renewable wool inside recyclable, food-grade MDPE sleeves.
Denim
A vegan-friendly alternative made from recycled denim with excellent thermal performance.
Materials & Vegan Options
Absolutely! Our denim insulation is available. Just let your Puffin Specialist know when enquiring.
Performance & Temperature Control
Wool and denim trap air, regulate humidity, and minimise condensation maintaining consistent temperatures and protecting product integrity during transit.
Performance & Temperature Control
Freeze for around 24 hours before use.
DuraCool
Ideal for chilled deliveries.
DuraFreeze
Needs a colder freezer and longer freezing time. Ask our team for guidance.
Performance & Temperature Control
It depends on shipment size and product type. Our team can advise the best quantity for consistent temperature control.
Performance & Temperature Control
Puffin Packaging holds ISO standards.
Performance & Temperature Control
Puffin’s insulated packaging has been tested to maintain chilled or frozen temperatures for extended periods under typical delivery conditions. Our natural WoolPac and vegan denim insulation work with Puffin’s DuraCool and DuraFreeze ice packs to help protect product integrity throughout transit.
Wool’s unique fibre structure naturally traps air, reducing heat transfer and helping to control humidity meaning products arrive fresh, safe, and ready to enjoy. Performance will vary depending on load size, product temperature, and courier route, so we always recommend customers carry out their own validation testing to ensure the best results. Get your free samples no commitment, no catch!
We’ll send you a Puffin sample pack so you can test it out before ordering. Call our Puffin Packaging Specialists who can understand your needs and sizes and can get you a tailored sample. Totally free of charge.
Sizes & Ship-Volume Support
We offer:
Pouches
From micro to extra-large, with matching mailing bags or boxes if required.
Liners
Small (16 L), Medium (32 L), Large (40 L), Extra Large (48 L). Each box requires two liners for full insulation available as cost-effective combos. Or ask our friendly team for a bespoke size and quote.
Sizes & Ship-Volume Support
Yes! Whether you send a few boxes a week or thousands a month, our specialists help you choose cost-effective, scalable, and sustainable packaging.
Sizes & Ship-Volume Support
All liners are manufactured in MDPE sleeves and ice packs contain non-toxic gel.
Sizes & Ship-Volume Support
Choose liner size by volume and product type: e.g., 16 L for single meal kits, 48 L for multi-box palleted shipments. Match with two liners per box for full insulation. Contact our specialists for your bespoke sizing plan.
Support & Free Samples
Definitely. Our friendly, problem-solving team is ready to guide you through off-the-shelf or bespoke solutions. 📧 hello@puffinpackaging.co.uk
Support & Free Samples
Yes! Request a free sample to test our packaging before ordering. We recommend your own in-house testing for extra peace of mind.
Support & Free Samples
Request a Free Sample – Test our sustainable food packaging today.
Contact a Specialist – Get tailored advice for your shipping needs.
Join the Return Scheme – Start reusing, recycling, and reducing waste.
Choose Puffin Packaging for reliable, award-winning, and sustainable cold-chain protection — trusted by foodies, pet-food brands, and meal-kit companies since 2017.