What is a block bottom bag, and why choose it?

It's a paper bag with a flat, squared base and side gussets, so it stands up on its own and holds its shape when filled. That makes it better than a flat sack for heavier or bulk items, and it packs and stores flat. Tell us the load and we'll confirm it's the right format.

Can they handle heavier or bulk products?

Yes, that's where they shine — but the paper weight has to match the load. Light retail items are fine on a standard kraft; heavier or bulk goods want a higher grammage so the base and seams hold. Tell us roughly what goes inside and the weight, and we'll spec it.

Are they suitable for greasy or warm food?

Plain kraft will mark with greasy or warm food, so it usually needs a grease-resistant liner. That liner does change how cleanly the bag recycles — we'll explain the trade-off so you can decide before you order.

A plain recycled-kraft block bottom bag has no handle and no plastic to remove, so it recycles cleanly. Add a grease liner for food and you trade some of that recyclability for performance — we'll spell it out before you choose.

Custom Printed Brown Kraft SOS Paper Bags

Recyclable
Recycled Content
Plastic-Free

Retail & Grocery
Bakery & Pastry
Quick Service / Fast Food
Food Producers
Café & Coffee Shop

We print your brand onto brown kraft block bottom bags — the handle-free counter bag with a flat, squared base that stands up and takes real weight. Made to order from recycled kraft for retail, bakery, food service and bulk dry goods. Tell us what goes inside and your markets; we match the paper weight to the load, proof colours on a sample, and stay honest about where a food liner trades recyclability.

Paper options	Brown kraft and recycled brown kraft paper
Paper weight	50–140 g/m²
Bag type	SOS / block bottom paper bag
Bag construction	Handle-free bag with side gussets and a flat squared base designed to stand upright
Standard sizes – Small (W×D×H, mm)	75×45×165 (100 g) · 100×57×180 (250 g) · 125×70×250 (500 g)
Standard sizes – Medium (W×D×H, mm)	125×70×300 (1,000 g) · 150×80×340 (1,500 g) · 190×95×360 (2,000 g)
Standard sizes – Large (W×D×H, mm)	190×110×300 · 220×120×310 · 250×150×300
Fill capacity	Figures in brackets show the recommended fill weight
Custom sizes	Dimensions can be evaluated according to production specifications
Printing method	Flexographic printing
Printing colours	Up to 6-colour flexographic printing; Pantone colour matching available
Printing sides	Single-sided or double-sided custom printing available
Printing options	Custom printed or unprinted production available
Carrying capacity	Up to approximately 6 kg — varies with bag dimensions, paper grammage, bag construction and product weight distribution
Product suitability	Suitable for food service, takeaway and a wide range of dry or packaged goods
Recycled content	Recycled kraft paper options available
Plastic-free options	Plastic-free constructions available depending on product requirements
Recyclability	Paper-based structure suitable for recycling; recyclability may vary if additional liners or coatings are used
MOQ	10000 pcs Need a smaller run? Ask us anyway and we will tell you what is possible.
Lead Time	Approximately 15–20 working days after artwork approval

FSC-certified paper available on request
Food-contact compliant inks
BRCGS Packaging Materials certification
ISO 9001 quality-managed production

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Applications

Retail & grocery

Greengrocers & delis
Bulk & loose goods
Counter service

Bakery & food service

Bread & pastries
Takeaway food
Market stalls

Food producers & packing

Coffee & dry goods
Farm shops
Wholesale packing

Overview

Features

Printed to order on recycled brown kraft — your logo, not a sticker
Flat, squared base stands up and holds shape on a counter
Paper weight matched to heavier and bulk loads
Handle-free, plastic-free plain kraft — clean to recycle
Grease-resistant liner available for food, with the recycling trade-off explained
A physical sample to approve before any production run

Custom printed brown kraft SOS paper bags that stand and sell

Custom printed brown kraft SOS paper bags are sturdy, handle-free counter bags designed to stay upright, carry weight and present products cleanly at the point of sale. Their square (block) base structure makes them ideal for retail environments where stability, filling efficiency and product visibility are essential — a bag that holds its shape on a shelf works as a small, standing advert for your brand rather than a slumped pouch.

A square base built to stand on its own

The block bottom opens into a flat, square base so the bag stands unaided, fills quickly and stacks neatly behind the counter. That structure is the whole point of an SOS (self-opening square) bag: it turns the front panel into a usable branding surface and keeps the product upright from filling to the customer's hand, without a handle to add cost or get in the way at a busy counter.

Made from recycled brown kraft

Produced from recycled brown kraft paper, these bags provide a strong, eco-friendly packaging solution for daily commercial use. The natural brown kraft look reads as honest and unbleached — exactly the aesthetic many bakery, coffee and wholefood brands want — while the long kraft fibres give the wall and base the strength to carry a real load. An uncoated kraft bag also stays easy to recycle and keeps a plastic-free profile.

Where brown kraft SOS bags are used

These SOS paper bags are widely used across bakery, coffee, takeaway, grocery and bulk dry-goods sectors, where everyday functionality and a natural kraft appearance are preferred. From a loaf of bread to roasted beans, loose grains or a takeaway order, the same standing format suits a counter hand-off and a shelf display alike, scaling cleanly from a single café to a multi-site grocery range.

Grammage matched to the product weight

We match paper grammage to product weight and usage requirements — from light bakery items to heavier bulk goods — ensuring both durability and cost efficiency across different applications. A pastry bag does not need the same wall as a kilo of flour, so we specify the grade for the load the bag actually carries rather than over- or under-building it, keeping the unit cost honest.

Liners and closures when the product needs them

Optional food-safe liners can be added when required, depending on product type and market regulations — useful for greasy or moisture-sensitive items. Closure systems such as tin-tie strips or other top closures can be specified where the product needs to be resealed or kept fresh, so the bag is built around how the product is filled, displayed and taken home.

Sampling, colour proofing and honest material guidance

Before production we provide sampling and colour proofing to ensure a consistent brand identity across every run and market, confirming the printed result on the real kraft before committing. We also guide material selection based on recyclability, food-contact requirements and supply-chain needs — telling you honestly where a liner or coating changes how the bag recycles, so you can balance protection, cost and environmental impact. Share your artwork, sizes and what the bag has to hold, and we will develop a brown kraft SOS bag built to stand, carry and brand.

Frequently Asked Questions

What is a block bottom bag, and why choose it?: It's a paper bag with a flat, squared base and side gussets, so it stands up on its own and holds its shape when filled. That makes it better than a flat sack for heavier or bulk items, and it packs and stores flat. Tell us the load and we'll confirm it's the right format.
Can they handle heavier or bulk products?: Yes, that's where they shine — but the paper weight has to match the load. Light retail items are fine on a standard kraft; heavier or bulk goods want a higher grammage so the base and seams hold. Tell us roughly what goes inside and the weight, and we'll spec it.
Are they suitable for greasy or warm food?: Plain kraft will mark with greasy or warm food, so it usually needs a grease-resistant liner. That liner does change how cleanly the bag recycles — we'll explain the trade-off so you can decide before you order.
Are they recyclable?: A plain recycled-kraft block bottom bag has no handle and no plastic to remove, so it recycles cleanly. Add a grease liner for food and you trade some of that recyclability for performance — we'll spell it out before you choose.

Request a Quote: Custom Printed Brown Kraft SOS Paper Bags

Tell us your brand, quantity and customization needs — we reply within 24 hours.