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Going Big: Life After 1.064. Bob Hansen Briess Malt & Ingredients Co. Chilton, Wisconsin USA 2006 AHA. List of big beer styles. List of big beer styles. Basic Equations and Terminology. Weight of Wort Solids. Degrees Plato. ________. 100. =. X. Weight of Wort.
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Going Big: Life After 1.064 Bob Hansen Briess Malt & Ingredients Co. Chilton, Wisconsin USA 2006 AHA
Basic Equations and Terminology Weight of Wort Solids Degrees Plato ________ 100 = X Weight of Wort
Basic Equations and Terminology Weight of Wort Specific Gravity ________ = X Weight of Water Weight of Water = 8.34 lbs / Gal Weight of Water = 1 kg / liter
Concentration (Plato) and Relative Density (S.G.) are Related Specific Gravity 1 + (10 X 4 / 1000) = 1.040 1 + (Plato X 4 / 1000) Specific Gravity Degrees Plato = ( 1.040 10 0.040 ) X 1000 /4 - 1 ) X 1000 /4
Basic Equations and Terminology Weight of Liquor (water) Liquor / Grist Ratio ________ = Weight of Grain
Thicker Mashes have lower pH (0.1 or more) Thicker Mashes Stabilize Enzymes Can Increase Soluble Nitrogen +10-20% Increase Alpha Amylase Survival Time +20% Thicker Mashes Reduce Enzyme Mobility Thicker Mashes Produce More Dextrinous Worts Fermentability Can be Reduced 5% Water Balance Sets Maximum Extract Possible In The Brewery Total Extract (Wort Solids) Sets Maximum Wort Strength Effects of Varying L/G in the Mash
Sparging is necessary to rinse extract from grain and get needed yield To Sparge or Not to Sparge… Sparging dilutes the wort
Plato Gallons
18 Plato (1.074) 82% Yield 93% Yield, 15.7 P 17 Plato (1.070) 91% Yield 87% Yield, 14.3 P
Water Balance Cannot be Separated from the 5 “-ations of Boiling Sterilization Isomerization Concentration (Evaporation) Carmelization (Color and Flavor Development) Volitilization Excessive Concentration is Inefficient and Can Lower Quality Concentration increases Exponentially with Water Removal Effects of Kettle Boil
Surviving the Marathon-Yeast Yeast need extra nutrients-especially Zinc Multiple initial oxegenation steps are beneficial Minimum pitching rates are critical, overpitching not a concern Primary and secondary fermentation should be used New yeast may be needed for bottle conditioning
Hop Utilization 25% Loss
Tips and Tricks The use of sugars and syrups are almost standard in big beers, they: Overcome equipment limitations Allow for greater yields and efficiencies Achieve Higher Hop Utilization May reduce color and enhance product quality May be added after fermentation to relieve yeast stress Proper measurement and equipment sizing is critical to success
Tips and Tricks Full kettle boils improve quality and efficiency Proper pitching rate is critical Multiple racking or fermentations should be used Second pitchings may be needed to finish fermentation or bottle condition
Summary Questions?
ThankYou Bob Hansen Briess Malt & Ingredients Co. Chilton, Wisconsin USA 2006 AHA