echan posting in homeschooling
I made a video that shows a timeline of milk production, starting with cows eating grain, then the milking process, testing for contamination, bottling, and finally delivery and drinking. The milking procedures shown are both by hand and 1940s "state of the art" mechanical milking machinery. Milk is bottled in paper cartons and glass bottles, and trucks deliver milk bottles directly to homes. More information and a download link are available in my journal.