If you already know the initial pre-boil (and post-boil) volume that you want for your recipe, enter them into the “Boil Size” field(s) and the QWR will use those volumes as the basis for the volume addition/loss calculations. If, however, you aren’t sure of your pre/post-boil volumes, the recipe builder allows you to automatically estimate the pre-boil and post-boil volumes to expect based on your recipe, chosen equipment profile, batch size and whether your batch size target is “Kettle” or “Fermentor” by clicking on the “Calc” button beside the “Boil Size” field(s).