While water makes up more than 90% of most beers, it is often completely forgotten when people try to think of its ingredients. What is more, unless you have had an IPA from somewhere with very hard water like Burton on Trent, England, or a Pilsner brewed with the soft water of Pilsen in the Czech Republic, you probably haven’t had the chance to experience how much influence water can have on the final product.
To show just how much difference water can make, we decided to make the same exact IPA, but brew it once with a soft water profile more common to Pilsen and once with very hard water more at home in Burton. All the other ingredients were kept exactly the same and brewed in a way to fit the style. The malt recipe is that of a classic American IPA, with Golden Promise being the base and a touch of body and malt flavor from Munich and Crystal malts. We decided to brew this as a single hop beer using only Simcoe in order to reduce any sort of variations that blending different varieties may create between the two finished beers. Bittering is 45 IBUs, which is well within the bittering range for IPA without going overboard and being too bitter.
So this recipe is really all about showing the difference created by two different water profiles: with Nan being 45 ppm of hardness and Koh being 324 ppm. What you should find is that Nan has a smoother, rounder flavor and bitterness while Koh is sharper, more minerally, and harsher in its perception. Find these beers and try them side by side to see the difference for yourself!
Naming: Hard water and soft water--the only difference between Nan (soft) and Koh (hard) is the makeup of the water!
- American IPA
- Malt Bill:
- Golden Promise, Munich 1, Crystal T50
- Bittering - Simcoe
- Flavour/Aroma - Simcoe
- American Ale
- Gas Volumes:
- Bottle JAN Code:
- Best Before Date:
- 3 Months