Table 1.

Popcorn properties before popping (kernel) and after popping (flake). Mean values ±s.d. on 41 measurements.

parameterkernelflake
hull thickness t (μm)160 ± 40
radius R (mm)3.1 ± 0.26.5 ± 0.8
mass density (kg m−3)1300 ± 130160 ± 60
mass m (mg)172 ± 30165 ± 26