All the magic that happens from the end of brewday onwards. Logging and recording your gravity and temperature.
The fermentation section is where you add all your readings - during brewday, and afterwards. You'll mostly be using this to record your gravity as your beer goes through fermentation.
In order to understand what your beer is doing - how the mash has performed, how the yeast is getting on, you need to record a bit of information. You'll need to take:
There are a variety of charts and graphs here to help you better visualise what's going on.
Here you can see several calculated figures:
If you've not entered any temperature or gravity readings, you'll have 4 buttons. They're in order of last to first during the brewing process:
Apart from the FV readings, you're only allowed to enter one of these per recipe. So when you add them, they'll disappear. You can edit the figures on the table once they're added. In the screenshot of the buttons above, the post boil and post mash readings have already been added. In the screenshot of the buttons below, none have been added.
Note: When you add these readings, the system will always try to give you some decent presets for the date, temp, gravity.
Attenuation is the percentage of sugars that get eaten by the yeast during fermentation.
Predicted attenuation we'll use the specifications from the yeast manufacturer to calculate this once you've added one to the yeast ingredients. If you've added two or more, we'll go with the highest figure. We just take an average between the maximum and minimum attenuation figures.
Measured attenuation is calculated from your oldest and most recent FV gravity readings.
ABV = alcohol by volume.
Predicted ABV we work out by predicting the gravity of your wort into the fermenter, and use the predicted attenuation figures to calculate the ABV.
Measured ABV as with measured attenuation, is calculated from your oldest and most recent FV gravity readings.
All the predicted volumes in the chart above are based upon various elements:
The measured volumes are recorded thus:
Please note how the measured into/out fermenter readings are recorded. The dates on the readings will determine the figures on the chart.
Once you click on an add reading button, the readings table will expand into view. You can also click on the Gravity, Temperature and Volume Readings button to open this table up.
Here we have no readings.
If we add post mash and post boil readings to the table by clicking the + Post Mash and + Post Boil buttons, and entering the correct figures:
Look, the chart now has your data.
Note the green line and the green text (Gravity) on the left hand side representing gravity. The black line matches with the right hand text (Temp (C)) and shows you the temperature.
We're not so fussed about brewday temperature though, lets try adding some more readings.
In addition to the post mash and post boil readings, I've added 3 fermenter readings.
The readings chart will update now with some better visual information to show you about your brew:
James Torr 18 Jun 22