Why Are Some Food Packages Bloated? The Surprising Difference Between a Normal Bag of Chips and a Potential Food Safety Warning.

A questionable package is better discarded according to local food-safety guidance.

Can temperature make packaging look swollen?

Changes in temperature can affect gas pressure inside a sealed package. However, with perishable foods, you should also consider whether the food has remained within the recommended storage conditions.

The Bottom Line

So, the next time you see a bloated food package, don’t immediately assume you’ve discovered spoiled food.

That puffy bag of chips may be exactly as the manufacturer intended, with protective gas helping keep those delicate chips from being crushed.

But an unexpectedly swollen package of perishable food is a different