Flat Bottom Bags
Premium 8-side seal stand-up pouches with box-like shelf stability
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Flat bottom bags — also known as box pouches or 8-side seal bags — take the stand-up pouch format one step further. Instead of a curved gusset base, they feature a true flat rectangular bottom that folds out into a box-like standing structure. The result is a pouch that stands confidently at any fill level, from freshly packed to nearly empty, without the wobble or collapse common to standard stand-up pouches.
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This structural upgrade makes flat bottom bags the format of choice for premium coffee, specialty tea, gourmet snacks, and pet nutrition brands that want their packaging to command shelf presence. With eight reinforced seals and five flat printable panels — front, back, both sides, and bottom — the format offers significantly more branding surface and a more architectural, “box-like” shelf impact than a standard stand-up pouch.
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Compared to a standard stand-up pouch with a curved gusset bottom, a flat bottom bag distributes weight evenly across its full base rather than concentrating it at a single seal point. This means less stress on the seams during shipping and handling, and a pouch that maintains its shape through the full consumption cycle — not just when freshly filled. For products sold at $15 and above per unit, this structural stability often justifies the format upgrade on its own.
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Every flat bottom bag can be customized with resealable zippers, one-way degassing valves, high-barrier film structures, and tear notches. Material, size, and finish are matched to your product’s shelf-life requirements and retail positioning. Share your product type and target fill weight, and we’ll recommend the right structure for your brand.
Your Benefit Is Our Priority
How to Work With Us
Get Your Customized Packaging Quote
Share a few details about your packaging needs and our team will come back to you with a tailored quote. The more clearly we understand your project, the better we can match the right structure, materials and budget to your brand.
We know you’re busy keeping your brand running — balancing quality, lead times, service and cost is never easy. JINYI helps you find that sweet spot: packaging that looks professional, protects your product, fits your timeline and stays within budget.
You want clear pricing and straightforward options. By filling in the basic information below, our packaging specialists can prepare the most accurate quote for you and suggest suitable solutions. Once we receive your details, we’ll review your project and get back to you with a customized estimate as soon as possible.
No finished artwork yet?
Let our in-house designers create a professional packaging design for you.
The Perfect Fit For Every Product
Our flat bottom bags can be fully customized in size, design, and functionality to match the unique requirements of your brand. Whether you’re packaging small samples or large volumes, we create the ideal solution tailored to your needs.
Flat Bottom Bag Size & Fill Weight Reference
Reference fill weights by bag size and product type
| Reference Size | Coffee | Pet Food | Tea | Snacks | Nuts |
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| 9*13*6cm | 52g | 46g | 32g | 58g | 46g |
| 11*16*6cm | 98g | 92g | 64g | 104g | 102g |
| 13*18*7cm | 230g | 161g | 115g | 253g | 167g |
| 14*19*8cm | 265g | 230g | 138g | 276g | 242g |
| 15*22*8cm | 415g | 300g | 184g | 437g | 391g |
| 17*24*8cm | 621g | 472g | 300g | 644g | 472g |
Actual capacity varies with product density. Figures above are guideline references, not guaranteed fill weights.
The table shows reference fill capacities for our standard flat bottom bag sizes across coffee, pet food, tea, snack, and nut products. Because product density varies — coffee beans, pet kibble, and loose tea all pack differently — the actual weight that fits in a given bag size may differ from these figures.
Use these numbers as a starting guideline. If you’re unsure which flat bottom bag size best fits your target net weight, share your product type and density with our team, and we’ll recommend the most accurate size for your packaging line.
The Right Material for Every Product
Every stand-up pouch begins with premium-grade polymer resin — the raw material behind PE, HDPE, LDPE, and OPP/CPP films. We select resin sources carefully to ensure consistent film thickness, clarity, and heat-seal performance across every production run. This foundation-level quality control is what separates a pouch that seals reliably from one that fails in transit.
For products that demand maximum freshness protection, we laminate aluminum foil (AL) or metallized PET (VMPET) into the film structure. This barrier layer blocks oxygen, moisture, and light almost completely — extending shelf life for coffee, tea, supplements, and other freshness-sensitive products. The result is a stand-up pouch that performs as a true high-barrier package, not just a bag.
Material
PET
Strong and lightweight crystal clearthermoplastic with high-qualityprinting capability.
HDPE
Durable, strong tensile strength andlow moisture absorption plastic witha matte finish.
LDPE
Low density, crystal clear plastic withhigh resistance to chemicals.
OPP/CPP
High tensile strength plastic withfood-safe capabilities, made fromrecycled material.
PLA
The green eco-friendly alternative totraditional plastics. PLA isbiodegradable and made fromrenewable resources.
Metallized PET (VMPET)
VMPET is a PET film with an ultra-thin aluminum layer vacuum-deposited on the surface. It offers high barrier against oxygen and moisture, a bright metallic look, and good flexibility when laminated with PE or CPP. Widely used for snack, nuts and cannabis food pouches as a cost-effective alternative to full aluminum foil.
Aluminum Foil (AL)
Aluminum foil is a real metal layer used in high-barrier laminates such as PET/AL/PE. It provides almost complete protection from light, oxygen and moisture, making it ideal for products that require maximum freshness and long shelf life, like coffee, tea and functional powders.
Gravure Print
High-quality printing method that utilizes a printing plate with microcavities to transfer designs on both paper and plastics. The most cost-efficient option at high volumes — the larger the run, the lower the cost per bag.
Digital Print
Digital printing method that requiresno printing plate. Designs aretransferred electronically, making itcost-effective for small runs.
Water-based Ink
100% eco-friendly ink comprised ofwater and pigment that provideshigh-quality color output. Notsuitable for food packaging
Pantone
Pure color based on specific inkformulas to consistenly andprecisely print color.
Soy- ECO
100% eco-friendly ink comprised ofsoy and vegetable oil and pigmentthat provides high-quality coloroutput. Suitable for food packaging.
Pantone Metallic
Metallic color based on specific inkformulas to consistenly andprecisely print color.
Oil Base lnk
Non-eco-friendly ink comprised ofoil and pigment that provides high.quality color output.
Hot Stamping
Hot stamping adds a touch of luxury to packaging, with a metallic shine that instantly elevates the premium feel.
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Spot Gloss UV
UV coating that is applied to aspecified area and cured usingultraviolet light.
Soft Touch Coating
Soft to the touch coating thatcreates a velvety texture for a moretactile appeal.
Holographic Effect
Holographic effects create dazzling rainbow colors that shift with light, adding a futuristic and innovative touch.
Matte Finish
Matte finish exudes understated elegance, reducing glare while highlighting refined quality.
Gloss Finish
Gloss finish adds brilliance and vibrancy, making colors pop with eye-catching appeal.
Transparent Window
Transparent windows offer a direct view of the product, building trust and sparking instant desire.
Why Choose Us?
Plant Area
10443㎡
Cooperative Customer
100000+
Annual Order Volume
50000+
Coverage Country
70+
The Voice of Global Customers Is Our Best Business Card
“Absolutely thrilled with my experience with this company🌟 I ordered 500 fully printed zip pouches across 14 SKUs with a soft touch matte finish – and WOW, they turned out incredible! The quality is top-notch: bright, vibrant colours that match my designer’s files perfectly, flawless zipper function, accurate cut lines on every pouch, and not a single reject in the whole order. Tear notches and hang holes are spot on. The thickness is ideal too! Huge shoutout to Quillion, my amazing sales rep, and their design team who helped fix typos and optimize the artwork. I was updated at every step, even receiving printing videos! Despite one box being misdelivered (not their fault), they reprinted and split shipping costs – super supportive even after delivery. Plus, the cost was almost 50% less than local Canadian quotes. Highly recommend – great service, great people, and exceptional results. Will be ordering”
Mia
Canada
“This was my first time ordering custom packaging, so I had a LOT of questions. They were patient with every revision and never made me feel like my order was too small. They helped me choose a pouch size based on my product weight, explained material options in simple terms, and even pointed out how to improve my design margins so text wouldn’t sit too close to the edges. I loved getting photos during production because it kept me calm. Everything arrived on time and looked even better in person. I really appreciate how supportive they were.”
Owen
Spain
“Professional, organized, and scalable.”
Clear process, quick quoting, and easy communication. They confirmed specs clearly and handled changes without drama. This is the kind of supplier you can scale with.
Daniel
USA
“Highly recommend—already planning the next order.”
Top quality, flexible MOQ, and very professional service. I’m not looking for another supplier—this is the team I want to grow with.
Noah
USA
“We had a product launch deadline, so timing mattered more than anything. They gave a realistic production schedule, confirmed every spec quickly, and didn’t overpromise. When we approved the final proof, they started production immediately and sent progress updates every few days. They also confirmed carton packing details and shipping marks so we could track everything easily. The shipment left on time and arrived earlier than expected. I’m very happy because they helped us hit our launch date without last-minute stress.”
Benjamin
Netherlands
“We wanted packaging that looks premium but still fits our budget. They gave us options and explained what impacts cost (material, finish, printing method) without pushing anything unnecessary. We selected a structure that works well for our product, and the final pouches look way better than I expected for the price. Print is clean, zipper is smooth, and the pouch stands well. Very good value and a smooth buying experience.”
Josie
Australia
“Best communication I’ve had with a packaging supplier.”
I’ve worked with several vendors—this was the smoothest. Clear updates, quick answers, and no confusion on specs. The final packaging matched what was promised.
Ethan
U.K.
“Fast turnaround + accurate delivery.”
They gave a realistic timeline, kept me updated, and shipped when they said they would. Packaging arrived earlier than expected and was packed safely.
Sophia
U.K.
“I’ve worked with several packaging suppliers and the biggest issue is usually inconsistency and slow communication. This team is different. The quoting was clear (structure, printing, lead time, packing), and they confirmed everything before production to avoid mistakes. They sent production photos and also confirmed the final carton quantity and packing list details. When the shipment arrived, the quality was consistent across cartons and matched our previous order. That reliability is exactly what we need for ongoing wholesale business.”
Michael
France
“One thing I really appreciated was how transparent they were. They didn’t just say “in production”—they actually sent photos and short videos: printing stage, pouch forming, and final inspection. They also confirmed the final approved proof one more time before starting, which prevented mistakes. This gave me confidence because I knew exactly what was happening. The finished packaging matched the approved design and was delivered on schedule. Highly recommend if you value clear updates.”
Olivia
New Zealand
FAQs · We’ve Got You Covered
We’ve gathered the most common questions from our clients and provided clear answers. Whether you’re a first-time customer or a long-term partner, you’ll find everything you need here to save time and get quick solutions.
What's the difference between a flat bottom bag and a standard stand-up pouch?
A standard stand-up pouch has a curved gusset base that expands when filled. A flat bottom bag has a true flat rectangular base with eight reinforced seals, creating a box-like structure that stands stable at any fill level — even when nearly empty. It also offers five flat printable panels instead of two, giving significantly more branding space.
What products are flat bottom bags best suited for?
Flat bottom bags are widely used for specialty coffee, premium pet food, gourmet snacks, nuts, and dry goods that benefit from strong shelf presence. Their structural stability and larger printable surface make them a popular choice for brands positioned at a premium price point.
Can flat bottom bags include a degassing valve for coffee?
Yes. One-way degassing valves are commonly added to flat bottom bags for freshly roasted coffee, allowing CO2 to escape without letting oxygen in. Resealable zippers, tear notches, and clear windows can also be combined with the valve.
How much more capacity does a flat bottom bag hold compared to a stand-up pouch?
Because the flat base distributes volume across the full rectangular bottom rather than a curved gusset, a flat bottom bag typically holds more product than a stand-up pouch at the same external dimensions. The exact difference depends on product density — share your specs and we’ll confirm with a sample.
What materials are used for flat bottom bags?
Common structures include PET/AL/PE and PET/VMPET/PE for high-barrier freshness protection, and PET/PE or BOPP/CPP for lighter-duty applications. Mono-material options such as all-PE are also available for brands prioritizing recyclability.
How long does production take for flat bottom bags?
Standard production takes 10–15 days after artwork approval, excluding shipping. We confirm a specific timeline before production begins.
What industries commonly use custom pouches besides food?
Custom pouches are widely used for pet food, supplements (non-prescription), cosmetics, household goods, and promotional kits—any product that benefits from lightweight, shelf-ready packaging.
What printing options are available for flat bottom bags?
We offer digital printing for short runs and gravure printing for high-volume orders with lower unit cost. With five printable panels, flat bottom bags support full 360-degree branding across front, back, both sides, and the bottom panel.
What closures can I choose from?
Common options include resealable zippers, tear notches, hang holes, spouts, and heat-seal tops for tamper resistance.
What materials are best for freshness and barrier protection?
Barrier structures can help reduce oxygen and moisture exposure—key for coffee, tea, snacks, and powdered products. We’ll match the barrier level to your shelf-life goals.
Is the MOQ for flat bottom bags higher than standard stand-up pouches?
Yes, typically. MOQ for flat bottom bags generally ranges from 500 to 1,000 units, depending on bag size, material, and printing method. Send us your specs for a confirmed quote.





























