How to . . .  What to do . . . 

What Specific Gravity (SG) will my honey produce?What Potential Alcohol (%ABV) will my honey produce? 

If I add Extra Honey or Fruit to my existing mead, what will be the new SG or %ABV 

How much Honey/Fruit do I add to produce a particular amount of Alcohol (%ABV)? 
Note that you may enter a few Additional Sugars (eg, some honey and some fruit), and the next unchecked “Additional Sugars” will be updated with the additional amount required to produce the desired SG or %ABV 
Can I make all the units Metric or Imperial? 
Note that you can still enter individual values as a different measurement system by selecting the desired unit from a check list for that item (eg, add 3 pounds of honey, and 0.5 Kilogram fruit) 
How do I Convert from one unit of measurement to another?How many US Gallons is 4 Imperial Gallons? 
This allows temperature, Specific Gravity, Potential Alcohol, as well as volume and weight to be converted. The Quantity of “Additional Sugars” are relative to Pounds of Honey – so volume quantities are volumes of Honey that are equivalent to Pounds of Honey, and is NOT a direct volume to weight conversion. 
What is the difference between Current Gravity and Target Gravity?  For a new batch, you are starting with water and adding honey and other “sugars” to the water, so the Current Gravity is 1.000 (water)For making additions to an existing batch, measure the Current Gravity of the must prior to making additions. The Specific Gravity of the must should change to the calculated Target Gravity once you have made some additions of honey or other “sugars” .
Hence, the default value for Current Gravity is 1.000 or the value for water. The Target Gravity is calculated as the current plus the gravity due to the addition of “sugars” . 
What if my Fruit doesn’t match the amount of sugar listed in the calculator?  Edit the Sugars Content to match the amount of sugars in your specific fruit. If you change the Type selection, then the Sugars Content value will be changed from what you manually entered. This utility does not store any values you enter ready for the next time you use the calculator, but reverts to defaults each time the calculator is run.The Sugars Content values are mostly derived from average figures quoted by the USDA, et. al. Fruit changes in sugar content from season to season, and variety to variety, so the values provided are only to provided in this utility are an indication of the expected result you will achieve. Actual hydrometer readings will provide the real indication of the sugar content in a must.If a fruit is missing from the list, then please post a request on the forum to have this fruit added, and if possible, locate an average sugar content figure for the fruit from the Internet, and provide the sugar content figure along with the request. 
Potential Alcohol Conversion Utility
How to . . .  What to do . . .  

How does the Potential Alcohol Conversion utility work?  The Potential Alcohol Conversion utility takes the difference between two Specific Gravity measurements, and calculates the %ABV or %ABW by converting the SG value to a Baume. The Baume value is assumed to match the amount of Alcohol able to be produced from a must starting and finishing at the two supplied SG values.  
How do I determine the potential Alcohol that would be produced if the yeast used up ALL the honey in the must? 


How do I determine the potential Alcohol that would be produced if the yeast stopped at a particular Specific Gravity? 


How do I determine the Original Gravity that would provide the Potential Alcohol I desire? 

Blending Calculation Utility
How to . . .  What to do . . .  

How does the Blending utility work?  The Blending utility uses Pearson Square formulae to derive the proportions that will result from blending two liquids.The blending values can be:


How do I determine the proportions of mead and vodka when Fortifying my mead or wine, to achieve a desired %Alc of 18%? 


How do I determine the resultant Specific Gravity when I Blend two musts together (sg=1.160 & 1.095)? 


How do I determine the two volumes required to achieve a %Alc of 13%, when I mix two meads of 16% and 10% together to give a TOTAL volume of 5 gallons? 
