1. MBAA Rocky Mountain Out-of-towner 2008 Troy Casey MillerCoors 9.20.2008

2. Adventures in Brewing UC Davis Brewing - Past and Present Research at Davis Brewing in Golden - Herman Joseph’s Private Reserve

3. Clear

5. UC Davis - 5 Gallon System

9. Clear

11. The New Brewery

17. DM and JS

19. The Future

20. Research at Davis

21. Silicon Silicon occurs in beer primarily through the hydrolysis silicate Si(OH) 4  Si(OH) 3 O - + H + Previous research states that silicon is primarily added in this way from malt and from the mineral content of water

22. Silicon and Bones Si, in the form of soluble silicate, has been shown to increase the bone mineral density of men and pre-menopausal women Due to silicon’s interaction with extracellular glycoprotein synthesis

23. Aluminum Al can be absorbed from sources such as drinking water and deodorant Average Al intake of 2-5 mg per day, but as much as 20 mg per day Silicic acid has been shown to react with Al, probably by the formation of alumino- silicates, to reduce the levels of Al

24. Research Design Commercial Beer Malting Process Raw Materials  Grain, hops, water, yeast Process Aids  Silica gel, Diatomaceous Earth Brewing Process

25. Commercial Beer CategorySi (ppm)SDSpreadN All29.412.16.4 - 56.4100 Ales32.811.411.1 - 55.567 Lagers23.710.710.1 - 56.427 Wheat18.93.414.3 - 23.47 Pale Ale36.59.216.8 - 50.718 IPA41.29.326.2 - 55.515 Non Alcoholic16.36.36.4 - 25.76 Sorghum27.34.823.9 - 30.72 USA31.611.911.1 - 56.480 International20.48.16.4 - 40.420

26. Raw Materials - Malt Sample% Si Pilsen Malt 0.17 2-Row 0.20 Carapils0.20 White Wheat Malt<0.01 Crystal 20 0.24 Crystal 120 0.19 Chocolate Malt 0.10 Roasted Barley 0.12 Black Malt 0.08

27. Raw Materials - Hops Sample (% alpha)% Si Willamette (3.8)1.00 Tettnang (4.3)0.94 Cascade (6)0.86 Centennial (8.4)0.86 Nugget (12.5)0.47 Millennium (14.5)0.79

28. Process Aids Diatomacious Earth - No silicon pick-up Silica Gel - No silicon pick-up

29. Mashing/Lautering 4 tests - Same malt, 65ºC conversion temperature  60 min mash in mash tun, gentle lautering  45 min mash, transferred to lauter tun, gentle lautering  Two 100 min mashes, transferred to lauter tun  One gentle, one “vigorous”

30. Mashing/Lautering Mash length/lautering type Si extraction 60 min/gentle3.5% 45 min/gentle4.3% 100 min/gentle5.5% 100 min/vigorous6.2%

31. Boiling Two 1.3 bbl brews (10 °Plato, 15 IBUs) 60.4 grams hops added (284 mg Si) 20 minute whirlpool with Irish moss added BrewSi in FermenterSi in Trub 179.5%18.5% 273.9%26.3%

32. Fermentation Two 1.3 bbl brews (10 °Plato, 15 IBUs) Ale yeast pitched at 10*10 6 cells/ml Brew 1Brew 2 Spent Yeast Yeast Slurry FermentationBoil 1362.54 mg Si (73.4%) 48 mg Si (2.6%) 49.3 mg Si 1808 mg Si Spent Yeast Yeast Slurry FermentationBoil 1749 mg Si (89.2%) 32.2 mg Si (1.6%) 67.2 mg Si 1893 mg Si

33. Brewing at 5707’

34. Established to create specialty beers for discriminating beer drinkers Specializing in small batch brewing Uniquely located at 39º 45' 36" N by 105º 12' 51" W Brewed at an altitude of 5,707 feet above sea level Small, 30-barrel Huppmann copper kettles, imported from Germany in 1973. Brewed by brewers, not computers

35. Introducing Herman Joseph’s Private Reserve

36. Herman Joseph’s Private Reserve is a German- style lager brewed by AC Golden Brewing Company and sold only in Colorado. Born of German heritage dating back to 1868, Herman Joseph’s recipe combines the finest European and North American hops with our prized Moravian two-row barley. Each small, 30-barrel brew begins with a slow and easy 120-minute boil. Select ingredients are added at the precise moment to build its taste complexities. Each brew is then chilled to 1º Celsius and allowed to rest for weeks on end. This Chill-lagering develops each HJ Private Reserve brew into a perfectly balanced, deep golden lager that is appreciated for its distinctive qualities and unmistakable crisp, clean finish. Every bottle bears its distinct brew number and each case is hand packed and sealed, assuring you that the Herman Joseph’s Private Reserve inside meets our uncompromising standards. Because of the extra time required to brew, age and package this rare beer, it take us longer to craft Herman Joseph’s Private Reserve – we believe you will agree……..it’s worth the wait.

37. Ingredients Four Hops  German Hallertauer Taurus  German Hallertauer Perle  North American Sterling  Saaz Noble Hops Four Malts  Moravian two-row  Weyermann CaraHell  Dingemann's Cara 8  Briess Black Malt

38. Special Features Private Reserve Extremely limited production  Average of 90 cases per week Long brewing and aging requirements Hand made by brewers, not computers Hand packed, inspected and sealed Recipe roots extend back to 1868 Extremely limited distribution  Available in select upscale Denver area restaurants Sold only in Colorado – Great suggestion for out-of-town guests Every brew is identified with a “Brew Number”

39. Thank You MillerCoors UC Davis Glenn Knippenberg Northern California MBAA Enjoy!