Introduction: BUTTER CHURN GRID FREE 54 Seconds
VIDEO INSPIRATION: hhttp://www.youtube.com/watch?v=LtPF3R...
The plastic bottle is lighter than glass and the ridges provide enhanced surface area for more churning action. This was completed in less than 54 seconds. The fastest time so far was below 40 seconds but is was a smaller volume.
Participated in the
Instructables Green Design Contest