Generally speaking, food spoilage and flatulence refers to the gas produced by microbial fermentation. The water content of potato chips is extremely low, so it is impossible for microorganisms to grow.
The flatulence of potato chips is mostly caused by heat expansion and cold contraction. Potato chips are usually packed with nitrogen to ensure freshness. In winter, the proportion of nitrogen is heavy, and it is filled with more and has good sealing performance. When it is hot, the packaging film will naturally bulge.
You can look at the production date. It should be produced when the weather is cold.