Raw popcorn bought on 2013-05-03 for making multigrain rice

On 2013-05-03, I bought a 400-gram packet of raw popcorn (kernel), USA product, Pasar brand at S.$1.55 from NTUC Faitprice AMK hub. I would use my Braun blender chopper to turn the popcorn into powder. This would be my first attempt to do so. Then use the powder for making my multigrain rice.