![]() However, when you look at the malt acidity values of various roasted malts as plotted by D. If you use a consistent source of malts which are always predictable in behavior and if you understand how your process behaves with regard to pH and wort color, then this works fine. I agree in principle with this approach as a method of anticipating where your mash pH will turn out and trying to preempt a lower than optimal mash pH. This is a common form of process control called a 'feed-forward' loop, where you know approximately where the process will take you and try to compensate for that impact before it actually occurs. The idea of this method is that in order to compensate for the acidity of toasted/roasted malts needed to attain darker colors, you need to have a certain amount of alkalinity. I am probably going to say some things here that may be controversial to those people who swear by the alkalinity/wort color water adjustment methods. I normally have to aim for 5.2 to hit 5.4 with Bru'n. My pH came in perfectly, which I've actually not found with Bru'n water (I seem to be in the minority for this though). You can always adjust the water ingredient profile to make it hit the stated SRM in the name if you wishįWIW - I used BS3's water profile function for the first time for a stout recently. Brad has already stated that there are differences in the way BS3 calculates some of the water additions compared to Bru'n water (eg the acid additions). I suspect the differences come about due to the way the water additions, etc are calculated. ![]() ![]() Mine also says the water colour range is 11-16 SRM for both a stout (in the recipe water tab) and in the ingredient profile for Bru'n water - black full If you go to the water profile in Ingredients, you'll see a similar analysis for that profile. The SRM down the bottom will be the estimated range that the water is best for, using BS3's internal calculations (which I am, of course, not privy to). The SRM referred to in the name is just the name of the water profile and completely editable. ![]()
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