Winemaker's Calculator is a Microsoft Excel spreadsheet that allows you to specify the gallons of wine you are making, and based on that volume of wine, gives you advice on How many pounds of grapes you need to produce that volume of wine How many pounds of various fruits you need to produce that volume of wine How much sugar you need to add before fermentation How much Tartaric Acid you need to raise acidity or how much Potassium Bicarbonate you need to reduce acidity How to blend two wines of different acidity to achieve the desired result How much Potassium Metabisulfite you need to reach the desired result How much sugar you need to sweeten your wine How much grain alcohol you need to add to make Port or Sherry How much wine or beer you need for a party Download this file: Vin Calc v11.xls Please send questions, comments, and suggestions to Gary: winemaker @ carolina.rr.com (remove the spaces on either side of the @ when you send the e-mail) NOTE: If you do not have Microsoft Excel on your PC, you can download a compatible spreadsheet program from here: http://www.openoffice.org/ P.S.  The spreadsheet is a work in progress.  You assume full responsibility for the use of this tool.  Use common sense and verify the calculations using your testing equipment.