Labels:text | font | black and white | paper | number | document OCR: GREAT FERMENTATIONS of Marin 87 LARKSPUR ST. - SAN RAFAEL, CA 94901 - 415/499-2520 HOP RESOURCE GUIDE Figuring out bittering units may seem cryptic at first, but in the long run your beer will thank you, I will stick with BU's and IBU's (the same thing) and avoid HBU's and AAU's (also the same thing) because they tend to be much more precise, including boiling time in the formula, as well as being the standard commercial brewers use. To convert HBU's to IBU's use chart one. 1 ; HBU/5 gal IBU's There are several Formulae for figuring IBU'S, and after trying them all, I condensed them into what I found as the simplest. I figure the bittering units 3.9 for one ounce of hops, then just halve, double or cut it in thirdo to get the 2 8.1 amount I'm after. 3 12.3 4 16.5 For example, I am making an American style pale ale with about a 1.054 original 5 20.4 gravity, and I want 37 or no bittering units using Cascade. Take the alpha acid 6 24.6 of the hops, 4.9, divided by the constant 7.25 - . 67, multiplied by the number 28.9 on chart two which corresponds to the amount of boiling time. (If the hopo are 13.0 to be dry hopped, use the lowest number). So, for the bittering hops, I Lake .67 10 41.1 times 30-20. An ounce and a third would be 27. Let's say I want a lot of hop 11 45.3 flavor and aroma, like a Sicrra Nevada palc alc. 3/4 ounce of Cascades for 15 12 49.5 min would bring another 7.5 IBU's (. 67 times 15=10, 3/4 of that is 7.51. That's 13 53.7 34.5 total, so let's throw in 1/3 oz for 5 min, and another 1/3 oz dry hopped, 14 57.5 and we come up with 37 IBU's (.67 times 5=3.3, 2/3 of that is about 2). 15 61.9 2 } Boil Time Multiple 1990 ALPHA ACIDS You can use as many hop varieties as you like, just figure for each, using the alpa acid printed on the 45-60 min 30 BRITISH package, Using the high alpha varietes like Chinook 30-44 min 22 and Nugget will make it easier on your pocketbock, 15-29 min 15 Kent Goldinge 5.2+ and allow you to use the best stuff for flavor and 5-14 min B.C. Goldings 4.1 aroma, The more varieties, the more hop complexity. 5 or less 5 British Blend 10.0* Fuggles 4.2+ 3) Gravity IBU'S How much hops is enough hops? Well, to some, there Willamette 4.0 is no answer to that question, but here are some 1.030 12 guidelines. Hop bitterness is essential to balance AMERICAN 1.040 16 the sweetnes in beer. Without hops, you have barley 1.045 20 soda pop. The higher the specific gravity, the 1000 faces 6.8 1.050 24 higher the sweetness, and the need to balance it Cluster 6.5 1.055 28 with hop bitterness. To achieve a straight balance Cascade 4.9 1.060 23+ without any noticeable hop character, follow table three (For those of us who love hops, however, the EUROPEAN 4) O.G. of Hop table could be doubled !! Bciled Wort Utilization Hersbruckers 2.9+ Hop resins dissolve more readily in a thin medium Mount Hood 3.0 1.050 1009 than in a viscous one, So, as the gravity of the Saas 3.1 -, 4.3* 1.060 959 boiled wort increases, hop utilization goes down. Hall. N. Brewer 7.5+ 1.070 90% Below 1.055, hop utilization is not dramatically N. Brewer 8.0 1.080 affected. Above 1.055, however, the difference can Styrian Golding 5.3+ 1.090 821 be substantial. If you are formulating a recipe Hall. Perle B.3* 1.100 for a barley wine, this should be taken into con- Tettenanger 3.3 1.110 7.61 oideration. And it in even more important for those 1.120 74ª brewers who boil only a portion of the entire five HIGH AROMA gallons of wort. 2 1/2 gallons of wort for a 1.045 Centennial 9.5 gravity brew is actually 1.090 in the kettle! This should be noted when CFJ 4 8.5 following a recipe formulated for a 5 gallon boil. See chart four. HIGH ALPHA On the next page are the approximate gravities and IBU's of several popular Nugget 10.9 commercial beers. Knowing what a commercial beer tastes like, and knowing Eroica 10.5 the numbers on it can help you get a handle on how to hop your homebrew. Chinook 11.8 "imported pellets + imported whole hop plugs
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