Most people like to eat chips. Because its taste is so wonderful that many times people use it to keep the mood good. You too must have eaten chips many times and must have also found that their packet never remains full. Whenever we open the packet, first of all, we get upset about the fact that the packet is always half full. Many people are even heard saying that 'the price is so much and the work is so'. Even if you tell the half-filled packet is a fraud of the manufacturer, there is a special reason behind doing so. Yes, there is a strong reason behind the chips you eat with gusto being half full, after knowing that you will never be angry with the manufacturing company.

In fact, according to the UK's Snack, Nut and Crisp Manufacturers Association, half of the packet is left empty so that the chips can be kept fresh for longer. One reason behind this is that the chips are very soft, which can break even with a light touch. Due to the bloatedness of the packet, the air-filled inside works to protect it from breaking. In the year 2017, a study by CDA Appliances found that on average, the packet of chips remains empty for up to 72 per cent. While only 28 per cent is filled with chips.

Why is nitrogen gas filled?
It is also a fact that there is no air in the empty 72 per cent of the chips, rather nitrogen gas is filled. This nitrogen gas prevents the chips from breaking in the packet and also prevents it from getting rancid. A spokesman for the Snack, Nut and Crisp Manufacturers Association said in response to a recent study that in addition to preventing chips from going rancid, nitrogen gas also protects the packet from damage.

No chance of spoilage
Packaging also expands and contracts to depend on temperature. Due to this, the gas present in the packet will be in large quantities when heated and in small quantities when cooled. Writers of the 2017 study told that the air filled in the packet of chips works to keep the chips fresh for a long time. Due to this, there is no possibility of its getting spoiled.