What decade is this?

Holding a Dairy Crest milk bottle under a waterfall of apple juice. Liquid streams and bubbles out of the pressured pile of mush until it topples out of the press into the barrel beneath. I watch steam curl from my hands as I pass the bottle to the farm owner for a juicy swig; he is replete in flat cap and tattered gaberdine. When I look out of the barn window I can see 20 miles of green hills.