Pinch Bottom Paper Bags.

The base is pinched flat and glued straight across, so there are no folded corners for powder to escape through. A folded base leaves small gaps at the corners, and fine goods find them.

That tight seal is why coffee, flour, spice and powders all use this format. After filling, the top can be closed the same way or fitted with a tin-tie that lets the customer fold it shut again.

For freshly roasted coffee, yes. Beans give off carbon dioxide for days after roasting, and a one-way valve lets that gas out without letting air back in, so the bag doesn't swell.

We integrate the valve during bag making, on foil laminate or PE-lined builds. Plain single-ply kraft doesn't hold a barrier in the first place, so the valve only makes sense on the lined versions.

Plain kraft is enough for dry-stable goods, PE-lined kraft keeps out moisture, and foil laminate is the oxygen barrier coffee roasters use. The right tier depends on what's inside and how long it sits on the shelf.

Compostable liners are now a real option if you want a plastic-free barrier. They sit between plain kraft and foil in performance, so we'd match them to products with a shorter shelf life.

A pinch-bottom bag is cheaper to make and seals tighter, while a block-bottom bag has a flat square base that stands upright. The pinch bottom leans against the shelf or its neighbours instead of standing alone.

On a café counter, a row of leaning pinch-bottom bags looks fine. If each bag has to stand by itself on an open retail shelf, the block-bottom is worth the extra cost.

Flexo on natural kraft is the classic roastery look, and a full laminate print gives a retail brand tier with photographic colour. Matte barrier films are the modern alternative for a clean, contemporary shelf.

Small roasters often run a plain stamped bag with a printed label, which lets one bag serve several origins. Spot UV and foil stamping are available on laminated builds.

Pinch-bottom bags are sized by fill weight, with the 12oz coffee bag as the classic reference. Our common range runs from about 4 × 2 × 8 in to 6 × 3.5 × 12 in.

Bulk density changes the fit a lot, so ground coffee needs less height than whole beans at the same weight. If you mail us a filled bag from your current supplier, we can match it exactly.

Custom pinch-bottom bags have a 500-bag minimum. For most roasters that means one size, usually the 12oz, in one design.

Roasters with wider distribution can order up to 100,000 bags. We'll set up the dieline, valve placement and artwork for you free.

Your bags will be in production for 7 to 10 business days after proof approval. A rush order takes 5 to 7 business days instead.

We'd strongly suggest a sample if you're adding a valve or tin-tie, and those take 5 to 7 business days to make. The price of the sample is credited on the production invoice, and we deliver to all 50 states.