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Tue, 4 Feb 1997 23:33:47 +1300 |
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At 07:54 PM 2/3/97 EST, Gerry Visel wrote:
>Peter,
>
> How is honey "darkness" measured (in units of mm???)
>
Colour of honey is measured on the Pfund Scale using a Pfund Grader
manufactured by Kohler in the USA. It has been used for honey since the
1920s. A measurement of 0 mm = colourless (or nearly so) and 140mm is black.
Honey is placed in a glass wedge shaped trough and compared with a
calibrated honey coloured glass wedge against a backlight. The reading is
taken where the two intersect with the same colour. The "mm" refers to
millimetres, the scale is basically a metric ruler and the reading is the
number of millimetres the pointer moves along the scale. Sample preparation
is *Very* important in achieving consistent results.
Peter Bray,
Airborne Honey Ltd., PO Box 28, Leeston, New Zealand
Fax 64-3-324-3236, Phone 64-3-324-3569 [log in to unmask]
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