Custom Printed Foil Stand Up Pouches for Coffee and Powders

What is a foil stand up pouch?

A foil stand up pouch is a gusseted pouch whose middle layer is a thin sheet of aluminium foil, between a PET outer and a PE inner. The foil is a true barrier: oxygen, water vapour and light do not pass through it.

The first photo shows a plain silver pouch with a zipper. The second shows a large open-top foil bag with no zipper, used for bulk fills that are heat sealed once. Both are the same family.

Foil pouches are heavier in the hand than clear film, and the stiffness helps them stand square on a shelf even when half empty. Our broader foil mylar bags range includes flat and gusseted shapes as well.

Why does oxygen matter so much?

Roasted coffee loses most of its aroma within a couple of weeks in a clear pouch. Oxygen reacts with the oils, and the flavour flattens.

Protein and milk powders absorb moisture, clump, and then cake into a block at the bottom of the bag. Freeze-dried food loses its crunch and picks up off-flavours.

Seeds are a quieter case. A packet of pumpkin seeds in clear film is fine for a month; in foil it stays dry through a season in a damp shed.

Foil stops all three. Compared with a clear or metallised build, it is the choice when the product has a shelf life measured in months. The laminate and barrier film explainer gives the detail.

Which products need foil?

Some of these also need a valve. Coffee releases carbon dioxide for days after roasting, and a sealed foil pouch with no valve will balloon.

For when to seal after roasting, read our guide to coffee valves and degassing before you set a packing day.

• Roasted coffee beans and ground coffee
• Whey, casein and plant protein powders
• Freeze-dried fruit, meals and pet food
• Seeds and grains stored for a season
• Dried herbs and spices that fade in light
• Supplement powders and capsules

Foil or metallised: what is the difference?

Metallised PET is a clear film with a microscopic layer of aluminium deposited on it. It looks like foil and gives a good barrier, but it is not the full barrier of solid foil.

Compostable, food-contact and high-barrier films are available as options on request and named on the quote.

Printing on foil

Foil pouches print with a white under-print beneath the artwork, or the colours take on the silver and look metallic. Some brands use that on purpose: leave the white out under a logo and it shines.

Plain silver with no print is popular with roasters who change blends often and label each one. Full colour digital suits small runs of several designs, while plate print suits one design in volume.

A plain silver pouch still gets a free proof: the dieline shows the gusset, zipper and valve position so you can plan your label size.

A plain silver pouch and a printed one are both quoted on the same form. See silver mylar bags in flat shapes for the non-gusseted version.

What size foil pouch for 250 g of coffee?

Whole bean coffee is light for its volume. 250 g often fills a pouch around 120 × 200 + 80 mm, and 1 kg sits in 200 × 300 + 100 mm. Ground coffee packs tighter, so the same weight uses a shorter pouch.

Powders vary even more. Whey is dense and flows; plant proteins are fluffier. Send us 100 ml of product weighed, and we size the pouch to it.

Ground coffee also degasses faster than beans, so a 500 g ground pouch with a valve needs slightly more headroom to let the valve work.

Open-top bulk bags for 2 kg to 5 kg are made without a zipper. They are sealed once and cut open at the co-packer or in the café.

Heat sealing foil pouches

Foil laminates seal well, but the foil conducts heat quickly, so jaw settings differ from clear film.

Flat foil pouches that are sealed on all four sides are covered on the heat seal foil pouches page.

1. Set the sealer about 10 degrees above your clear film setting and test.
2. Keep the dwell short; a long dwell burns through the PE layer.
3. Wipe the seal strip, since powder on foil stops a clean seal.
4. Seal, then peel-test the first three pouches of every run.
5. For valve pouches, squeeze gently to confirm the valve lets gas out and not in.
6. Stack sealed pouches flat; creases in foil do not recover.

Handling and storage of foil pouches

Foil creases and the crease stays. A pouch dropped on its corner shows a white line, and a sharp fold can crack the barrier layer. Store cartons flat and lift pouches by the top edge.

Pinholes are the hidden risk. Sharp products such as dried pasta edges or seed husks can pierce thin foil from the inside, so tell us if your product is sharp and we quote a thicker PE inner.

Keep filled pouches away from heat sources on the shop floor. Foil blocks light, but it does not block warmth.

Humidity matters for the empty pouches as well. Keep the cartons closed until the day you fill, so the inside PE layer does not pick up dust that spoils the seal.

What goes wrong with foil pouch orders?

Ordering a window in a foil pouch and expecting full barrier. The window is clear film, so the barrier drops around it.

Choosing metallised film for coffee to save money, then finding the beans stale at eight weeks. The full foil build earns its cost on coffee.

Sealing a coffee pouch with no valve within a day of roasting. The pouch inflates like a cushion by the time it reaches the customer.

Printing full colour straight onto the silver with no white under-print, then wondering why the brand blue looks like gunmetal. Ask for the white layer unless you want the metallic look.

Ordering foil stand up pouches

Tell us the product, fill weight, whether you want a valve or zipper, and plain or printed. Every quantity is quoted per order, starting from £0.25 per unit, and the written quote confirms it.

Free proof first, even for plain pouches so you can check the size. Production is 4–6 business days after approval, and free tracked delivery to any UK address takes 2–3 business days.

Misprints or damage reported with photos inside 10 days are reprinted or refunded. See how UK delivery works for packing detail.