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Comment RSSApparent Extract (EA) Calculation
October 20, 2011 # 4:20 AM # Calculations # No CommentApparent extract calculation:
• The apparent extract (EA) is determined from the specific gravity of the original
degassed beer (SGEA) by reference to the official sugar tables of Goldiner,
Klemann and Kämpf (Plato table) or, in accordance with this table, by using the
following polynomial:
EA [% ] = – 460.234 + 662.649 x SGEA – 202.414 x SG²EA
• Apparent extract indicates the actual reading of the specific gravity of the beer,
which is a combination of the extract content and the produced alcohol. The
alcohol causes a thinning effect giving a lower reading of the actual extract
content, hence the terminology “apparent”
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