![]() Throw in some math, brewing salts, spreadsheets, ions, ratios, acids, and pH into the mix, and it can all feel overwhelming. With so many aspects of brewing to focus on, it can become very easy to put something as seemingly unexciting as water chemistry on the back burner. This is the amount of time it likely took your brain to decide if that prickly hop and malt flavored water you just took a sip of was good or not. Is it everything you were expecting? Too bitter? Too sweet? Flavorless? What exactly is that flavor? Is it balanced enough? How’s the mouthfeel? Oh, that aroma! Do I want another? What should I adjust? Is it perfect? Visit The Brü Club website for more information on this series. Articles featured on are selected by The Brü Club leadership prior to being submitted for publication. While members who choose to participate in this series generally take inspiration from Brülosophy, the bulk of design, writing, and editing is handled by members. This xBmt was completed by a member of The Brü Club as a part of The Brü Club xBmt Series in collaboration with Brülosophy. Mosaic Of Change IPA by House Of Pendragon.Using the New Brewing Water and Mash pH Tools in BeerSmith 2. ![]() Ways to Quantify the Perception of Bitterness in Beer.The Big Six Water Ions and Water Chemistry in Beer Brewing.Related Beer Brewing Articles from BeerSmith: Be sure to sign up for my newsletter or my podcast (also on itunes…and youtube…and streaming radio station) for more great tips on homebrewing. If you have your own experiences with this ratio leave a comment below! Thanks for joining me on the BeerSmith Home Brewing Blog. That’s a quick summary of the sulfate to chloride ratio works. You can use a number of online spreadsheets or the Water Profile Tool in BeerSmith to calculate the effects of your additions. Go light on the water additions, however, as it does not take many grams to significantly change the water content. You can add more chloride to your water by adding Calcium Chloride (CaCL2), and you can add sulfate by adding Gypsum (Calcium Sulfate or CaSO4). Excessive levels of either sulfate or chlorise can be harsh. Looking at the above table you may want to target a ratio in the 4-7 range if you are brewing an IPA for example, while for a malty German Lager you would want to instead target something in the 0.4-0.6 range while keeping the overall sulfate levels low. John Palmer also published a water spreadsheet with guidelines for the ratio. Ales can often withstand higher levels of sulfates. Noble hops and light lagers tend to be more sensitive to sulfate levels, and sulfate levels below 100 are recommended for these beers. They suggest a minimum threshold of chloride of roughly 50 ppm before you can affect the flavor of the beer, and a similar minimum of 50 ppm for sulfate. They define the useful ratio range as roughly 0.5 to 9, as beyond that you are often working with a sulfate or chloride level that is too high or low for use in beer. For example a ratio of 30 ppm to 30 ppm is not at all the same as a ratio of 300 ppm to 300 ppm. Excessively high sulfate and chloride levels at the same time lead to harsh flavors. They also note that the potential strategy of maximizing both sulfate and chloride at the same time to emphasize both malt and hops does not work. ![]() ![]() Typically brewing water has 50-250 ppm of sulfate and 0-250 ppm of chloride. They mention that a prerequisite for using the ratio is that some modest level of both sulfate and chloride must be in the water to start with. John Palmer and Colin Kaminski cover the ratio in their book Water: A Comprehensive Guide for Brewers (Amazon affiliate link) on p149. Note that some references have it listed as “Chloride to Sulfate ratio” which is basically the same measure but inverted. ![]() Ratios below 1 tend to lend more malt character and those above 1 tend to enhance the hop character of a beer. A ratio of around 1:1 (or 1.0) is considered balanced in that the water will neither enhance the malt or hop flavor. You simply divide sulfate by the chloride ion concentration. The Sulfate to Chloride ratio can be stated simply as the ratio of sulfate (SO4) ions (in ppm or mg/l) to the concentration of Chloride (Cl) ions. Sulfate levels above 200 ppm are best reserved for hoppy beers like IPAs. Sulfate ions, in contrast, tend to accentuate hop flavors and bitternes, often leading to the perception of a drier and cleaner finish. Chloride concentrations in excess of 200 ppm in particular tend to give a full malty taste. The Sulfate to Chloride RatioĬhloride ions tend to enhance the malty aspects of beer, as well as enhance the perception of mouthfeel. In fact, it is probably second only to mash pH when we discuss the flavor impacts of water as a beer ingredient. Follow week I look at the Sulfate to Chloride ratio and how it can have a significant impact on the perceived bitterness of your beer. ![]()
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