Snack packaging: barrier, grease resistance and convenience

Snacks sell themselves from the shelf, but it is the packaging that keeps them fresh. Chips have to stay crisp, nuts must not go rancid, and the pouch has to look appetizing. Let us look at what matters in snack packaging and how to match it to a specific product.

What matters most in snack packaging

A snack does not spoil at once, it does so gradually: it takes on moisture and softens, oxidizes and goes rancid, and fades in the light. The job of the packaging is to slow all of this down for as long as possible. So the key here is not film thickness on its own, but the right barrier and inner layer chosen for the specific product.

The other side is convenience and looks. The shopper wants to open the pouch, take a portion and close it again, and on the shelf the snack has to catch the eye with bright print. These things are also decided when the format is chosen.

Barrier: moisture, oxygen and light

For crisp snacks the main enemy is moisture. As soon as it passes through the film, chips and crackers lose their crunch. For nuts and products with oil, oxygen is more dangerous, because it is what turns the taste rancid. And light speeds up both.

That is why snacks call for barrier film. For short terms basic structures are enough, and for long storage a metallized layer or aluminium is added, blocking almost all moisture, oxygen and light. For especially sensitive products the pouch is filled with nitrogen: the inert gas displaces oxygen and at the same time protects a fragile product from pressure.

Grease resistance for nuts and chips

If a product is oily, an ordinary inner layer can let oil through over time, leaving stains on the pouch and spoiling the print. For such snacks a grease-resistant sealant is chosen, one that keeps the oil inside and does not let it migrate into the material. This matters for nuts, chips, seeds and granola with added oils.

Formats and options for snacks

• Stand-up doypack: stands neatly on the shelf and gives a large print area.
• Flat pouch or pillow: an economical option for filling on an automatic line.
• Zip-lock: for products taken in portions, such as nuts or dried fruit.
• Euro slot: a hole for a hook to display the pouch on retail equipment.
• Clear window: shows the product itself, when it is the best advertisement.

Print and shelf appeal

Snacks are an impulse buy, so the packaging often decides everything. We print your design from the first batch, from 1 to 9 colours, with rich colours and, if needed, a matte or gloss finish. Design development is free. Tell us what you fill and on which equipment, and we will match the barrier, sealant and format so the snack stays fresh and sells well. Minimum order is from 5,000 pieces, and lead time is usually 7 to 14 days.

Frequently asked questions

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