You know you’ve been there: You open a potato chip bag only to hear a loud pop and air release, and then you look down and the chips take up a mere fraction of the bag. This has probably left you with all kinds of questions, such as, “What air is in a potato chip bag?” “Why do bags of chips have air in them?” and “How much air is in a potato chip bag?” Now is the day you get answers.
Before we get into why bags of chips are filled with air, let’s talk about what is actually being used. The secret ingredient that you refer to as air is actually nitrogen gas. Regular air contains all kinds of particles, including oxygen and water vapor, both of which will cause the chips to rapidly decay. So food manufacturers displace the oxygen and water vapor with nitrogen to make the food more shelf stable. This process is often referred to as Modified Atmosphere Packaging (MAP) and helps foods to maintain their quality.
We have briefly answered the question, “Why are potato chip bags filled with air?” but now it’s time to break it down into more detail. These are the main reasons why bags of chips have nitrogen in them:
The answer to this question can vary quite a bit. However, products are supposed to list the actual net weight of their product on the packaging, so you will know exactly how much you are getting. So instead of looking at the size of the bag, pay attention to the net weight of the chips inside.
Even though it may seem like the nitrogen in a potato chip bag is only there to deceive you, it actually serves a very important purpose: to protect the chips from being crushed or going bad. It is especially effective because it does not impact the taste or texture at all.
If you manufacturer potato chips and you want to make sure you always have enough nitrogen to keep things moving, contact us today. With our on site nitrogen gas generators, you will never run out of the nitrogen gas you need to keep your chips in tip-top shape.