A study was conducted in the past which showed that on an average 72 percent of the packet of Kurkure is empty. That is, only 28 percent of them have been filled with crisps. You will say that the company is cheating. When such a big packet has been made, then there should be goods in it. But experts say that this is done for scientific reasons.
According to the UK’s Snack, Nut and Crisp Manufacturers Association, the extra space in crisp bags keeps the product fresh as well as safe. Nitrogen gas is put in it to prevent rancidity. It is airtight and protects the food items in the packet from getting spoiled quickly. Not only this, you will see that this packet keeps on swelling according to the temperature. When the weather is very hot, you will see the packet bloated and when it is cold, it will look small.
More gas means more days can be kept
You will also be surprised to know that most of these crisp packets are made for 55 days. Means the stuff kept in it remains best for 55 days. But popchips in which the maximum nitrogen gas is filled can be kept for more than 290 days. The stuff kept in it will not spoil. There is another reason why packets are not filled up to the top. These items are very fragile and can be crushed very easily. To prevent this from happening, air is also pumped into the pack.
special name of empty space
Let us tell you that this empty space also has a special name. In the world of industry, it is known as ‘Non-functional Slack Fill’. Slack fill is there in every snacks, nuts, candy but due to this weight is not reduced. If it says two pounds, then it’s two pounds. Many manufacturers even put a little more. But if the container is designed to hold four pounds and only holds two pounds, it is obviously only 50 percent full.
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FIRST PUBLISHED : January 24, 2023, 15:16 IST