ArticleBrew 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.Already a member? Log InWritten by Chris ColbyYou'll Also Like Article FREE Fermenter Choices As a homebrewer, the selection of different fermenters is pretty astounding. Make sure you choose wisely. Article MEMBERS ONLY Baltic Porter: Imperial stout’s vagabond cousin How much do you know about Baltic porters besides where they come from? The reality is that it is a broad style of beer, produced in a diverse manner depending on where it is made. Learn some of the specifics and a recipe you can brew.