Bottom Pouch Manufacturer | Custom Block & Flat Bottom Bag Supplier

As a direct bottom pouch manufacturer, Coast Package produces structural block bottom bags and flat bottom pouches engineered for product stability, extended shelf life, and strong shelf presence. The flat, sturdy base lets the pouch stand upright when filled, making it a practical format for dry food, coffee beans, pet treats, specialty powders, and granular products.

We offer full customization across dimensions, barrier materials, surface finishes, and reclosable closures. We manufacture every bottom pouch using multi-layer laminated films tailored to your barrier requirements, protecting contents against moisture, oxygen, light, and aroma loss.

Block Bottom Pouch Variants We Manufacture

We produce nine block bottom pouch variants across different materials and configurations. The table below covers the main options and their typical applications to help you identify the right format before requesting a quote.

If your product falls outside these categories or requires a specific barrier level not listed, send us your product details, and we will recommend a laminate structure based on your shelf life requirements.

Material Specifications and Barrier Options

Our manufacturing process supports a broad selection of substrate combinations based on your product sensitivity and distribution requirements:

• High-Barrier Foil Laminates: PET/AL/PE or PET/VMPET/PE structures for maximum oxygen and moisture protection.
• Kraft Paper Laminates: Natural brown or white kraft paper outer layers lined with high-barrier inner layers for an organic visual appearance.
• Clear High-Barrier Films: Clear PET/PA/PE configurations for applications that require partial product visibility, puncture resistance, and seal integrity.
• Recyclable Materials: Mono-material PE structures that meet recyclability requirements without sacrificing barrier performance.
• Compostable Materials: Industrial compostable PLA and kraft film combinations for brands with verified sustainability targets.

Custom Features and Closure Integrations

To match your exact product application, we integrate functional components directly during the pouch fabrication process:

• Pocket Zippers and Press-to-Close Zippers: Enable easy opening and secure resealing for consumer convenience.
• One-Way Degassing Valves: Release carbon dioxide from freshly roasted coffee while preventing oxygen from entering the pouch.
• Tear Notches and Ergonomic Handles: Allow clean opening without tools and easy carrying for larger volume pouches.
• Matte, Gloss, and Tactile Finishes: Enhance shelf appearance with spot UV, soft-touch matte, or high-gloss varnish to complement your brand design.

Manufacturing Capabilities and Supply Chain Support

Our production facility operates rotogravure printing lines capable of printing up to 10 colors with precise print registration and consistent color reproduction across production runs. For shorter runs, digital printing is available up to 7 colors.

As a block bottom pouch manufacturer supplying wholesale volumes, we handle the full production workflow in-house, from lamination and slitting through to pouch conversion and quality control. We test every production run for seal strength and barrier performance before dispatch.

We export to North America, Europe, Australia, Southeast Asia, and the Middle East. We arrange shipping via sea freight, air freight, or express courier, depending on your order volume and timeline.

Order Terms and Lead Times

We work with brands, importers, and distributors at different order volumes. Below are the standard terms for block bottom pouch orders.

Custom printed orders require artwork approval before production begins. We send a digital proof for sign-off and, on request, a physical pre-production sample at an additional cost. Lead times start from the date of artwork approval and deposit payment.

We can arrange door-to-door delivery or FOB Wenzhou depending on your preference. Most buyers in Europe and North America use sea freight for full production orders and express courier for samples.

Frequently Asked Questions

What is the difference between a block bottom pouch and a flat bottom pouch?

They are the same format, referred to by different names depending on the market. Block bottom, flat bottom, and box pouch all describe a flexible pouch with a flat, rectangular base that stands upright when filled. The base is formed by folding and sealing the bottom gusset into a squared-off shape, which gives it better shelf stability than a standard stand-up pouch with a curved base.

Which industries use block bottom pouches most commonly?

Coffee is the most common application because the format accommodates one-way degassing valves well and provides strong shelf presence in retail. Beyond coffee, we regularly manufacture block bottom pouches for pet food, dry snacks, specialty grains, protein powders, and organic food brands. The external handle variant is popular for larger volume pet food and agricultural products.

Can I get a one-way degassing valve on any block bottom pouch?

Yes. Degassing valves can be integrated into most of our block bottom pouch configurations. They are most commonly requested for freshly roasted coffee packaging, where off-gassing CO2 needs to escape without allowing oxygen back in. We source valves separately and integrate them during pouch fabrication, so they add a small per-unit cost to your quote.

What artwork files do you need for custom printed pouches?

We accept AI, PDF, and CDR files at 300 DPI in CMYK color mode. If you are starting from scratch, we can provide a dieline template specific to your pouch dimensions. Our team reviews all files before production and flags any issues that could affect print registration or color accuracy.

Do your block bottom pouches meet food safety standards?

All food-contact materials we use comply with FDA 21 CFR and EU Regulation No 10/2011. We can provide material certificates and migration test reports on request. Our manufacturing facility holds ISO 22000 and BRCGS certifications.

What is the shelf life of products packed in your high-barrier block bottom pouches?

Shelf life depends on the product and the pouch's barrier structure, not the format alone. A PET/AL/PE laminate with a proper seal will protect roasted coffee from oxidation for 12 to 18 months under normal storage conditions. We can advise on the right laminate for your target shelf life if you share your product type and storage environment during the inquiry.