Custom Compostable Boxes & Compostable
Compostable is the most misused word in this industry. Half the briefs we receive asking for a compostable box actually describe a recyclable one, and the two are not interchangeable. Getting the claim right matters as much as getting the board right. We print a lot of compostable packaging at ZEE Packaging and we would rather be honest with clients than sell a claim they cannot defend.
Home Or Industrial Changes Everything
There are two very different standards and a compostable box has to say which one it meets.
- Home compostable breaks down in a garden heap, slower and lower temperature
- Industrial compostable needs a commercial facility with controlled heat
- Most customers do not have access to industrial composting
- An industrial only claim without explanation frustrates buyers
- Say plainly on pack which one applies and where to put it
- If you cannot evidence a certification, do not print the word
What Actually Makes A Carton Compostable
Every element has to qualify, not just the board.
- Uncoated or certified compostable coated board
- Soy or vegetable ink, no metallic or heavy pigment load
- Water based adhesive rather than solvent
- Compostable film if a window is used, never PET
- No foil stamping, it will not break down
- Paper tape and paper fill on the outer compostable packaging
One PET window undoes the whole claim, and that is the single most common mistake we see.
- Tuck end carton the everyday compostable box for retail
- Auto lock bottom for heavier products, still fully compostable
- Corrugated mailer ecommerce compostable packaging
- Sleeve over a tray presentation without film
- Moulded pulp tray and insert replaces foam completely
- Food service carton with a certified compostable liner
Sizes We Print Regular
Every compostable box is built to your product, though these run often:
- 3" x 3" x 4" for a small cosmetic or supplement
- 6" x 4" x 2" for a retail compostable box
- 8" x 6" x 3" for a mid size carton
- 10" x 8" x 4" for an ecommerce mailer
- 5" x 5" x 3" for a food service format
- 12" x 9" x 5" for bulk compostable packaging
Board And Certification
- Uncoated kraft, the most requested stock here
- FSC certified board, certificate on request
- Certified compostable liner where you need grease or moisture resistance
- 18pt to 24pt depending on the load
- Corrugated E flute and B flute for shipping
- Moulded pulp for inserts and trays
Uncoated board absorbs moisture faster, so for damp products we spec a certified liner rather than pretend it is not an issue.
Being Straight About Trade Off
- Print sits duller, uncoated stock mutes colour noticeably
- No foil, no PET window, no gloss film
- Certified compostable liner costs more than standard coating
- Shelf life may shorten without a plastic barrier
- We would rather you know upfront than be disappointed on delivery
Why Brands Work With Us
- 100 unit minimum, so a small brand can start properly
- Free 3D mockup and flat proof every order
- Free dieline drawn by our own designer
- Urgent turnaround at 5 to 8 business days
- Free shipping worldwide, nothing hidden
- One contact from artwork right through to delivery
Frequently Asked Questions
Compostable or recyclable, which is better?
Often recyclable, honestly. Paper recycling infrastructure is far more widespread than composting, so it depends on your customer.
Can we still have a window?
Yes with certified compostable film, or a plain die cut opening. A PET patch breaks the claim entirely.
What is the price of a compostable box?
Rough estimate is $0.28 to $0.80 per unit for an uncoated folding carton, $0.85 to $2.10 for a corrugated mailer and $0.50 to $1.40 for a lined food service format at moderate quantity. Liner type moves it. Shipping is included in our price. This is estimate only, so ask our team for an exact quote.
Can you certify the finished box?
We supply material certification and FSC documentation. Full pack certification depends on the exact build, so ask and we advise.
Will it survive a damp product?
Uncoated will not. A certified compostable liner handles grease and moisture without breaking the claim.
Can we foil stamp it?
No. Foil will not break down, so it disqualifies the pack. Deboss gives you a similar premium cue instead.
How long does it take to break down?
Depends on the standard and conditions. Industrial is typically weeks, home composting takes considerably longer.
