Ebook Art of Brewing

The reverse of this comparison is equally easy. Thus, suppose we have a wort which shows a specific gravity of by the common hydrometer; and we want to know how many pounds heavier a barrel of such worts is than a barrel of water: we seek, in the body of the table, for the nearest number to which we find to be This sum is in the column headed 4, in the horizontal line with the left-hand margin 39; and therefore is the weight sought for.