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Idiomas disponibles
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6. VERIFICATION OF FERMENTATION
AND MEASUREMENT OF FINAL DENSITY
The process will be complete after 5-10 days if the temperature will be kept around
22°C. At lower temperature it will take a few more days; vice versa at higher
temperature it will be faster. Anyway don't be in a hurry to bottle!
When you will notice a decrease in bubbling (after about 7 days) lift the lid slightly or
gently remove the bubbler, slowly open the tap and pour the beer into the cylinder;
immerse the densimeter and measure the value.
Repeat this operation in the following 2-3 days, remembering to note down the
density: when it will remain stable your beer is ready to be bottled.
If instead the value is not constant wait a few days, taking care to close the container.
We thought to simplify this step by indicating with the term "bottle" on the
densimeter when the density value is the right one to bottle.
Also in this case remember not to pour the sample in the fermenter as it could infect
the wort.
Besides indicating when the fermentation is finished, the density reading can
be used to calculate the final alcohol content.
± 7 days
Bottle
To calculate the ABV (Alcohol By Volume) use this formula:
ABV =
1.040 - 1.003
Density Initial – Density Final
For
=
4,96%
alcol
example
7,45
7,45
Percentage of alcohol by volume
17
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