Adjusting Brewing Gravities July 31 2014
Gravity too low on brew day? There's an easy fix: Always keep a bag of Dry Malt Extract (DME) on hand just in case! Here's a handy link from John Palmer's How to Brew that walks you through how to calculate the amount of DME to add: http://www.howtobrew.com/section1/chapter3-4.html.
If your gravity is too high -- just add water.