Key findings
- 1Popcorn is a whole grain; the kernel itself is a single ingredient
- 2In our analysis, popcorn products average a Processing Score of 6.0, which is Level 3
- 3Microwave popcorn bags have historically contained PFAS "forever chemicals"
- 4Movie theater "butter" is typically flavored coconut oil with artificial coloring
Why is Popcorn Level 3 on average?
Popcorn itself is a whole grain that "pops" when heated and is one of the simplest snacks possible. Air-popped popcorn is just the kernel. The processing escalation happens with microwave bags: artificial butter flavoring compounds, TBHQ (preservative), partially hydrogenated oils, and the bag itself which historically contained PFOA and now uses other PFAS compounds. Movie theater popcorn uses artificial butter-flavored oil with beta-carotene coloring. In our analysis, popcorn products average a Processing Score of 6.0, which is Level 3.
How 3,250 popcorn products break down
Share of products at each processing level, in our analysis.
Popcorn brand comparison
From least to most processed in our database.
How to read a popcorn label
- 1
Air-popped or stovetop popcorn with real butter is the least processed option
- 2
Microwave popcorn: check for TBHQ, artificial butter flavor, and hydrogenated oils
- 3
The microwave bag itself may contain PFAS compounds (not listed as ingredients)
- 4
SkinnyPop and Boom Chicka Pop use simpler ingredients than mainstream brands
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Frequently asked questions
Is popcorn a processed food?
Plain popcorn is a whole grain kernel with nothing added, but most packaged popcorn is processed: in our analysis, popcorn products average Level 3 (Highly Processed), and 21% of them are ultra-processed. The difference is what goes on the kernel, from oil and salt to butter flavoring, cheese powder, and preservatives.
Is microwave popcorn ultra-processed?
Most microwave popcorn is far more processed than plain popcorn because of artificial butter flavoring, TBHQ preservative, and bag chemicals. Air-popped or stovetop popcorn with real butter is the least processed option. Search microwave popcorn to see its own average.
Is popcorn a healthy snack?
Plain popcorn is a whole grain and one of the least processed snack options. The processing level depends entirely on what is added, plain vs buttered vs flavored microwave varieties.