The brew kettle is the mainstay of the home brewery. A correct size pot of quality material will last you a life time. Be it a no thrills economy pot, or a top of the line BoilerMaker brew kettle from Blichmann Engineering, purchasing the one that will grow with your brewing hobby means only buying once. The 10 gallon stainless steel brew kettle is the standard for 5 gallon batches of beer. But many home brewers find that brewing 10 gallons of beer preferable as twice the amount of beer can be made in the same amount of time. For 10 gallon batches, a 15 gallon brew kettle is necessary to provide enough head space to avoid boil overs, and that is something all brewers try to avoid.