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In response to "It does have a recycle 6 symbol on the bottom, and it says PS. Poly-styrene? Is that different from styrofoam? -- nm" by emoticripple

I'm pretty sure "styrofoam" is just a brand name for polystyrene.

Like "astroturf" is a brand of synthetic turf, or "kleenex" is a brand of facial tissue.

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