How to Fold a Chip Bag: Keep Chips Fresh

What You’ll Need

An open chip bag (any size)
A flat surface (counter or table)
Optional: a heavy object like a book or can to hold the fold while you work

Step-by-Step

Press out excess air. Gently squeeze the bag from the bottom toward the opening to push out as much air as possible without crushing the chips. Leave a little space at the top so you can fold.
Flatten the top edge. Lay the bag on a flat surface with the opening facing you. Smooth the top edge so it’s straight and even. If the bag is crumpled, straighten it with your hands.
Make the first fold. Fold the top edge down toward the chips by about 2–3 cm (1 inch). Press the fold firmly with your fingers to crease it.
Roll or fold repeatedly. Continue folding or rolling the top down in the same direction, each time pressing the crease. Keep going until the fold reaches the chips. The tighter the rolls, the better the seal.
Flip the bag over. Turn the bag upside down (fold side down) and place it on a flat surface or in the pantry. The weight of the chips presses on the fold, keeping it closed.

Common Mistakes

Folding too loosely: If the folds are not tight, air will still get in. Press each fold firmly.
Not pressing out air first: Leaving too much air inside makes the bag bulky and the fold may pop open.
Folding too little: A single fold won’t hold. You need multiple folds or rolls to create a tight seal.
Folding over chips: If you fold too far down, you’ll crush the chips. Stop as soon as the fold touches the chips.

Tips

For extra security, use a chip clip or a rubber band over the folded part.
If you plan to finish the bag soon, just roll the top down once and flip – it’s faster.
Store the folded bag upright in a cupboard to avoid accidental unfolding.
For large party bags, fold in thirds instead of rolling – it’s quicker and still works.

Troubleshooting

The fold keeps coming undone. This usually means the folds are too loose or there’s too much air inside. Open the bag, press out more air, and refold with tighter creases. If it still won’t hold, use a clip or rubber band.

Chips are getting crushed. You’re folding too far down. Stop earlier, leaving more space between the fold and the chips. Also, don’t squeeze the bag too hard when pressing out air.

The bag is too full to fold. If the chips fill the bag completely, you can’t fold without crushing them. Eat some chips first, or transfer the remaining chips to a smaller airtight container.

The fold is uneven. Uneven folds can let air through. Unfold and start again, making sure the top edge is straight before you begin.

Frequently Asked Questions

How long will chips stay fresh with this method?

If folded well and stored in a cool, dry place, chips can stay crunchy for several days. The key is removing as much air as possible.

Can I fold any type of chip bag?

Yes, this works for most plastic or foil chip bags. For bags with a resealable zipper, just use the zipper – no folding needed.

What if I don’t have a flat surface?

You can fold the bag in your hands, but it’s easier on a flat surface. If you’re on the go, just roll the top down tightly and flip the bag over.

Is it better to use a clip instead of folding?

Clips are more secure and don’t require flipping the bag, but folding is fine for short-term storage. Clips are better if you’ll open the bag often.

Does folding work for opened bags of other snacks?

Yes, this method works for any bag of dry snacks like pretzels, popcorn, or crackers. Just make sure the bag is sturdy enough to hold a fold.

Why does my fold always pop open in the fridge?

Cold air can make the plastic stiffer and less flexible. Store chip bags in a pantry or cupboard instead – refrigeration isn’t needed for chips.

Sources: General food storage guidelines from the USDA Food Safety and Inspection Service. Menus and buttons can differ slightly by version. Spotted something out of date? Tell us.