How annoying when the delicious crisps or salty crackers become old and stale once the packet has been opened. But they don't have to be thrown away, because you can quickly make them nice and crisp again.

What makes the chips taste stale is the moisture absorbed from the air. The chips become soft and lose their flavour. But you can take this moisture out of them again so that they taste as fresh as before. What you need is an oven or a microwave.

Oven

Preheat the oven to 220 degrees. Spread the chips or crackers out on the baking tray so that they do not cover each other. At 220 degrees heat, preferably hot air, the chips only need to stay in the oven for about three minutes. When they are golden brown, remove from the oven, leave to cool and enjoy.

Microwave

Spread out the chips or crackers on a microwave-safe plate. Heat on the highest setting for about 10 seconds. If necessary, heat for another 5 seconds afterwards.
Then take them out of the microwave. Be careful, they will be very hot!