Before thermometers were invented, brewers would dip a thumb or finger into the mix to find the right temperature for adding yeast. Too cold, and the yeast wouldn't grow. Too hot, and the yeast would die. This thumb in the beer is where "rule of thumb" comes from.
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06/12 BLACK GHOST TAKES GOLD
Results are in from the LA Commercial Beer Competition, and MRBC's Black Ghost Oatmeal Stout took top spot in the Oatment Stout category! Our brewers appreciate the recognition for the end result of all their hard work.