Compostable Flat Bottom Coffee Bags With Valve
Compostable flat bottom pouch for coffee, built from PLA/PBS and kraft paper laminates, with a one-way valve to vent CO2 and keep beans fresh.
This is a flat bottom pouch designed for compostable packaging. It stands on its own base, which gives a stable shelf presence. The structure uses compostable substrates such as PLA, PBS and kraft paper, often in laminate form like NK or NKME. Thickness varies by laminate, but typical coffee grades run 120 to 150 microns. The pack protects roasted coffee from oxygen and moisture while allowing the material to break down in industrial composting conditions. A one-way degassing valve is fitted as standard on coffee versions, releasing carbon dioxide without letting air in.
Flat bottom pouches suit 250 g to 1 kg coffee, tea, pet food and snacks. They run on standard vertical form-fill-seal lines with a flat bottom attachment, or can be filled manually. Sealing requires precise temperature control because compostable films have a narrower window than PET/AL/PE. A zipper is common for repeat use, and a tear notch helps opening. A window is possible but reduces barrier. A spout is not typical on this format. Choose compostable PLA/PBS when the brand needs certified compostability and the product turns over quickly. For long shelf life or high humidity, a foil laminate still performs better on barrier.
| Product Name | Compostable packaging bags |
|---|---|
| Bag type | All kinds |
| Color | Customizable |
| Material | NK,NKME,PLA,PBS,kraft paper |
| Application | Coffee,tea,pet food,snacks, etc |
| MOQ | From 100 pcs (digital printing) / 10,000 pcs (gravure) |
| Lead time | 10–15 working days after artwork approval |
Typical applications
- 250 g whole bean coffee
- 500 g ground coffee
- loose leaf tea
- dry pet food treats
- snack mixes
- contract manufacturing runs
Frequently asked
What barrier can I expect from a compostable flat bottom coffee bag compared to a foil laminate?
Compostable PLA/PBS and kraft paper laminates typically give a moderate moisture and oxygen barrier, not the high barrier of PET/AL/PE. For coffee, that means a shorter shelf life unless you add an oxygen absorber or choose a thicker compostable laminate. If you need 12 months or more, a foil structure is still the safer choice.
Can I run these compostable flat bottom pouches on my existing filling line?
They run on standard vertical form-fill-seal machines with a flat bottom kit, but compostable films seal at lower temperatures and are more sensitive to heat. You will likely need to adjust dwell time and pressure. A trial run with your specific product is recommended before full production.
What is the minimum order quantity and lead time for custom printed compostable flat bottom bags?
Digital printing starts at 100 pouches with a 10-15 working day lead time after artwork approval. Rotogravure printing starts at 10,000 pouches and takes 20-25 working days. Stock samples are free; you only pay courier.
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