When using a pH meter you add a reagent to your wine sample until the pH meter reads out at 8.2. The reason that 8.2 is the magic number is that 8.2 is the pH level at which phenolphthalein changes color.
There are a few things to know about a pH meter:
First, do not drop the device and be extra careful that you do not damage the probe. Second, keep the device clean. Third, it important that the device be calibrated (using fresh buffering solution) prior to every test. Fourth, be sure to mix your sample thoroughly between each addition of the reagent. Last, be sure that you take care of your pH meter in between usages (store according to the manufacturer's instructions). If you take good care of your pH meter, it should last a long time.
BlueStem Winery is your source for both quality wine making and home brew supplies. BlueStem stocks a large variety of both WinExpert and Cellar Craft wine kits in addition to all of the home winemaking and homebrew equipment in inventory. If in the northeast Iowa area we welcome your visit to our store where you can make your personal selection from our homebrewing ingredients, wine making supplies or choose one of our Cellar Craft or WinExpert kits.
We will increasing our inventory of WinExpert wine kits in October of this year and will greatly expand our selection of Cellar Craft kits with our factory order in September. Give us a try! Our BlueSaver Shipping gets your order (no matter how large) to you for only $7.95 if you are located in the lower 48 United States.