Start with the product, not the pouch
The product decides the pack. Before looking at formats, write down four things: what is inside, how it is filled, how it is stored and how it is sold. A 250 g coffee bag, a 1 kg pet food pouch and a single-serve snack pack have different needs even if they look similar on a shelf. Getting this on paper first stops you buying a structure that fails in the warehouse.
Weight, shape and fragility matter. Fine powders behave differently to whole beans or chunky treats. Liquids and pastes need a spout or a strong seal area. Products with sharp edges can puncture a thin film, so the material gauge has to match the fill. If you are unsure, ask for a sample pouch and fill it by hand before committing to a print run.
Match barrier to shelf life
Barrier is the main driver of shelf life. Oxygen, moisture and light are the usual enemies. PET/AL/PE gives a strong oxygen and light barrier thanks to the aluminium foil layer, which suits coffee, dried foods and products sensitive to oxidation. PET/NY/PE uses nylon for toughness and puncture resistance, often chosen for frozen or vacuum applications.
Kraft paper laminates give a natural look and moderate barrier, usually with a PE or foil inner layer. Mono-material PE and PP recyclable structures are increasingly specified where recycling rules apply, but their barrier is lower than foil laminates, so shelf life may shorten. PLA/PBS compostable and degradable options exist for specific markets, and they need checking against local certification rules before you print.
Choose a format that suits filling
Format follows the filling line. Stand up pouches sit well on shelf and work with semi-automatic and automatic fillers. Flat bottom pouches hold more volume for the same footprint and stand firmly. Flat and three-side-seal pouches suit small sachets and samples. Spout pouches, including corner spout and STANDCAP, are used for liquids, sauces and pastes.
Side gusset bags are common for coffee and tea where a block bottom and valve are wanted. Rollstock film is the choice for form-fill-seal machines running high volumes. Special shaped bags can differentiate a product but usually add tooling and cost. Check the fill opening, seal width and any fitment against your filling equipment before artwork is finalised.
Add-ons and print method
Add-ons solve specific problems. A one-way degassing valve releases CO2 from roasted coffee without letting oxygen in. Zippers add reclosability. Tear notches and hang holes help opening and retail display. Windows show the product, and carry handles suit larger packs. Each addition affects material thickness, seal design and cost.
Print method depends on run size and design. Rotogravure handles up to 10 colours and gives consistent results on long runs, typically from 10,000 pcs or 200 kg. Digital print suits shorter runs, from 100 pcs for pouches or 10 kg for film, and is useful for launches and variants. Flexographic sits between the two for certain jobs. Lead times are usually 10-15 working days for digital after artwork approval and 20-25 working days for rotogravure.
Understand the cost drivers
Unit price is built from several parts. Material type and thickness are the biggest factors, followed by print method, number of colours, add-ons and run length. Longer runs spread setup costs, so the per-unit price falls. Short digital runs cost more per piece but avoid the tooling and minimums of rotogravure.
MOQ follows the same logic: from 100 pcs for pouches or 10 kg for film with digital printing, and from 10,000 pcs or 200 kg with rotogravure. Freight, artwork changes and reprints also affect the final figure. Ask for a breakdown rather than a single unit price, so you can see where to adjust if the budget is tight.
Common mistakes to avoid
Most problems come from skipping a step. Typical issues include choosing a structure before confirming shelf life, ordering artwork without a filling trial, and underestimating the barrier needed for a long supply chain. Another is specifying a recyclable or compostable material without checking that it meets the rules in the market where it will be sold.
Practical steps reduce risk. Request free stock pouch samples and only pay the courier. Fill and seal them the way your line will. Confirm the certification status of the manufacturing partner for any claim you intend to print. Check lead times against your launch date. A short trial now is cheaper than a full run that has to be scrapped.