The number 33 is printed prominently on all bottles of Rolling Rock. Many have speculated on the significance of the number 33: that the "33" refers to 1933, the founding year of the Pittsburgh Steelers (who hold their annual training camp at Saint Vincent College in Latrobe, PA); that 33 degrees Fahrenheit is the proper temperature to keep beer; the 33 degrees of Scottish Rite Freemasonry; that Latrobe test-brewed 33 batches of beer before coming up with the final formula for Rolling Rock. Other theories concerning the number 33 are that there were exactly 33 stairsteps from the brewmaster's office to the brewing floor in the original Latrobe brewery. Also that the Pennsylvania fish and game commission at the turn of the century numbered the streams within the commonwealth and the water that was used to brew this beer was taken from the stream numbered 33.