Our Beer

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Beer Process

The Potosi Brewing Process utilizes old world traditional methods utilizing only the finest raw materials obtainable. State of the art equipment together with superior brewing skill provides excellent, consistent results. The following steps are taken in the time-honored production process utilized by the Potosi Brewing Company.

1. MILLING Whole malted barley is portioned and then milled to the proper granular consistency. The malt mill discharges to a large hopper in preparation for mashing.
2. BREWING WATER PREPARATION Two large tanks located at restaurant entrance are utilized to properly prepare and store Potosi's famous spring water that will be used in the following mashing phase.
3. MASHING A combination mash/lauter tun is used to steep the malted grain in hot water to extract the soluble goodness (wort) from the grain to prepare for brewing. Upon completion of this step the spent grains are discharged through the chute on the front of the brew house. This is the same chute used by the original Potosi Brewery.
4. BREWING Within the brew kettle the wort is then boiled for a prescribed time interval to precipitate unwanted elements and to infuse the addition of flavorful hops.
5. COOLING The boiled and still very hot wort is then cooled by passing through a heat exchanger to condition the wort to the ideal fermentation temperature. The brewery's abundant, cool spring water is ideal for use as a coolant.
6. FERMENTATION Based upon beer style, the appropriate strain of brewers yeast is added to the wort inside conical bottom fermentation tanks. The yeast breaks down the malt sugars to produce alcohol and CO2, which then gives beer its familiar characteristics. Also significant flavor development and maturity takes place here.
7. CONDITIONING The beer then ages and mellows in specific serving tanks for several weeks to achieve optimum taste and the ideal level of carbonation.
8. TAPPING The finished beer is then either directed to the in-house taps or packaged for consumption outside the brewery.