To use all functions of this page, please activate cookies in
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website and individual newsletter. - My watch list - My saved
searches - My saved topics - My newsletter Spinning cone columns
are used in a form of steam distillation to gently extract
volatile chemicals from liquid foodstuffs while minimising the
effect on the taste of the product. For instance, the columns
can be used to remove some of the alcohol from wine, 'off'
smells from cream, and to capture aroma compounds that would
otherwise be lost in coffee processing. The columns are made of
stainless steel. Conical vanes are attached alternately to the
wall of the column and to a central rotating shaft. The product
is poured in at the top under vacuum, and steam is pumped into
the column from below. The vanes provide a large surface area
over which volatile compounds can evaporate into the steam, and
the rotation ensures a thin