Bryan J. Maloney wrote:

> "Opinicus" > nattered on
> :
>
>>Bob Pastorio > said:
>>
>>>What a cool idea. Grass in, cream out. What will they think of next?
>>
>>Well actually it's "Grass in, Milk out". Then you have to separate the
>>cream.
>>
>>How DO they separate the cream?
>>
> A centrifuge is used, and this method has been used for quite a long time.
> When I was a kid I saw an old-timer demonstrating foot-treadle-powered
> rotary skimmer.

We had an old DeLaval separator for our Guernsey milk when I was a
child. Amazing yellow milk that coated the mouth most silkily. It was
my job to crank the separator on the production of the half-dozen cows
we had.

But I'm sure I never saw my grandfather put grass in either end of the
cows.

Pastorio