Article Beer the Partial-Mash Way Expand your extract brewing horizons by learning how to use small amounts of base malts in a partial mash. Written by Mark Henry You'll Also Like Article MEMBERS ONLY Master Partial Mashing You’ve been brewing with extract and have made great beers. Maybe you’ve experimented with steeping grains and have been able to manipulate color and flavor. Now you’re starting to get curious about Article MEMBERS ONLY Brew a Porter using a Partial-Mash How to do a partial-mash, boil the full wort, use a wort chiller and prime a full five-gallon batch. Plus: a quick guide to grain color.