Pinch Bottom Open Mouth (PBOM) Paper Bags
A Clean, Flat-Bottom Bag Built to Stack and Sell
Pinch bottom open mouth bags, known as PBOM bags, are designed with a flat, pasted bottom that folds and seals into a clean, square profile. The top stays open for filling, then most commonly closes with a heat sealer, though it can also be sewn shut in a flush cut top configuration. The result is a bag that stands up on its own, stacks neatly on pallets and shelves, and presents well wherever it ends up.
That flat-bottom design is what sets PBOM bags apart. It’s not just about looks. A bag that stacks straight and stays stable during transport means fewer damaged loads and a more professional presentation at the point of sale. The construction also does a great job of containing fine powders, with anti-sift properties that keep product in the bag and off the pallet. Bag Supply Company manufactures pinch bottom bags in multiwall kraft construction, available with a foil liner for chemical and food grade products, and built to hold up through filling, shipping, warehousing, and retail handling.
Why Choose Pinch Bottom Open Mouth Bags
Built to stand and stack. The pinched, flat-bottom design gives the bag a stable base, which means better pallet stacking and a cleaner look on a shelf or in a warehouse.
Strong seal, strong structure. Multiwall kraft plies provide the strength to hold heavier or denser products without sacrificing the bag’s shape.
Closure options to fit your line. Most PBOM bags are closed with a heat sealer, and we also offer a flush cut top configuration for bags that need to be sewn shut instead.
Anti-sift protection for fine powders. The pinch bottom construction is built to contain fine, dusty, or powdered products, keeping more product in the bag and less on the floor or pallet.
Foil liner options. For chemical and food grade products that need an extra barrier against moisture, oxygen, or contamination, we offer PBOM bags with foil liners.
Great for retail-facing products. If your product is going to be seen by an end customer, PBOM bags give you a clean surface for branding and a shape that displays well.
Custom print capability. We print sharp, consistent graphics across every run, so your packaging looks as good as your product.
Sustainable material. Like all our multiwall paper bags, PBOM bags are made from kraft paper, a renewable and recyclable resource.
Common Applications for PBOM Bags
Pinch bottom bags show up wherever presentation and stackability matter as much as strength, including:
- Pet food and animal feed that needs to stand up on a store shelf or in a warehouse
- Agricultural seed and fertilizer sold through retail or farm supply channels
- Building materials like mortar mix, concrete blends, and other dry construction products
- Fine powders and dusty products that benefit from the bag’s anti-sift construction
- Chemical products that call for a foil liner to guard against moisture and contamination
- Food grade dry goods that need a foil liner barrier along with shelf-ready presentation
- Pelletized or granular products that benefit from a stable, flat-bottom bag during storage and transport
If your product needs to look good, stand up straight, and stay contained from the loading dock to the store shelf, PBOM is usually the right call.
Frequently Asked Questions
What makes a pinch bottom bag different from a sewn open mouth bag? The bottom construction. Pinch bottom bags have a flat, pasted bottom that folds into a square base, while sewn open mouth bags have a sewn bottom seam. The pinch bottom design gives the bag a more stable, stackable shape.
Can pinch bottom bags stand up on their own when filled? Yes. The flat-bottom design is built specifically for that kind of stability, which is why it’s a popular choice for retail and warehouse presentation.
How is a PBOM bag closed after filling? Most PBOM bags are closed with a heat sealer. We also offer a flush cut top option, which is sewn closed instead, for customers who need that configuration.
Are pinch bottom bags good for fine powders? Yes. The pinch bottom construction has anti-sift properties that help contain fine or dusty powders, reducing product loss during handling and transport.
Do you offer PBOM bags with a liner? Yes. We offer foil liner options for chemical and food grade products that need an added barrier against moisture, oxygen, or contamination.
Can Bag Supply Company customize the printing on PBOM bags? Yes. We offer high-quality custom printing so your branding and product information come through clean and consistent across every bag.
Let's Talk About Your Pinch Bottom Bag Needs
Call Bag Supply Company Today so we can go to work for you.
If stacking, shelf presentation, or retail-readiness matters for your product, our team can help you find the right paper weight and configuration for the job.
Call Bag Supply Company today so we can go to work for you.