How It Works Green Count Checking Machine with International Shipping Available How It Works Seed is transferred from the hopper to the rotating pickup wheel with the seed pockets. The tape is gently pressed against the pickup wheel to make a good contact with the seed. The tape carrying the seed passes through the crushing rollers. After four rotations of the crank, 250 seeds are crushed onto the tape. We also have a larger size that will crush 500. Use the tape cutter to remove the crushed canola sample. Check the number of green seeds in the sample. The remaining seed can then be dropped out of the spring loaded hopper. Testimonials It does what it was meant to do. I like the way it crushes and exposes the seed compared to rolling by hand. It was my best harvest investment.