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i have read this from cover to cover and reread some chapters a few times, i found quite a challenge (not a bad thing) perhaps the average home brewer should read the water section of john palmers how to brew. i am still glad i bought it,perhaps it has shown me where my limit is.
Arrived on time, have found reviews saying it needs to be corrected in some areas but am sure in the main the info is spot on. Until someone writes another one this remains the best book on water out there for brewing.