The
concept of drinking living juice was first introduced by Dr.
Norman Walker (1874-1983). Walker declared that the enzymes
in fruit and vegetables die at temperatures which exceed 42 degrees
Celsius. Walker explained that any juice extractor that used high
speed blade or centrifuge created friction heat leading to the destruction
of enzymes.
Your
living juice produced by slow crushing is nutritionally far superior
and will last for up to 48 - 72 hours in a refrigerator. In 1930
Walker designed the 'Norwalk Juicer', and this old fashioned machine is still available from some suppliers today (USA) and sells for approximately $3,500.00 AUD.
Modern cold press juicers have mostly replaced the old style Norwalk Press Juicer, as the later model cold press juicers are:
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