Table of Contents
Acknowledgments xi
Foreword xv
1 A Whole Book on Brewing Water 1
Overview of Water as an Ingredient
Overview of Water and Mash Chemistry
Overview of Brewing Water Processing
2 Where Does Your Water Come From? 15
The Water Cycle
Water Sources and Mineralization
Precipitation
Surface Water
Groundwater
From Source to Faucet
3 How to Read A Water Report 29
Water Quality Report Parameters
Primary Standards
Secondary Standards
Unregulated/Aesthetic Standards
Water Hardness, Alkalinity, and Milliequivalents
4 Residual Alkalinity and the Mash 57
Water Alkalinity
Precipitation of Calcium Phosphates in the Mash
Residual Alkalinity
Refinement of RA
5 Residual Alkalinity, Malt Acidity, and Mash pH 75
Malts and Malt Color
Malt Acidity
A Discussion of Malt Acidity and Alkalinity
Determining the Alkalinity of Water in the Mash
Introducing Z Residual Alkalinity (Z RA)
The Hypothesis for Predicting Mash pH
6 Controlling Alkalinity 101
Reducing Alkalinity
Reducing Alkalinity with Acid
Acidification of Mashing and Sparge Water
Adding Alkalinity
7 Adjusting Water for Style 139
Historical Waters, Treatments, and Styles
Flavor Ion Effects
Sulfate-to-Chloride Ratio
Building Brewing Water from Scratch
Choosing a Water for the Style
Adjusting Water to Suit the Style
Brewing an American Pale Ale
Brewing a Pilsner Beer
Brewing a Foreign Extra Stout
8 Source Water Treatment Technologies for the Brewery 179
Removing Suspended Solids-Mechanical Filtration
Removing Dissolved Solids-Iron and Manganese
Removing Dissolved Solids-Ion Exchange
Removing Dissolved Solids-Nanofiltration and Reverse Osmosis
Removing Liquid and Gas Contaminants-Chlorine
Removing Organic Contaminants-Activated Carbon
Removing Dissolved Gases-Deaeration
9 Brewery Process Waters 203
Brewing Water
Cleaning and Rinsing Water
Chilled Liquor
Boiler and Boiler Feedwater
Packaging
Pushing Product
Dilution Water
10 Wastewater Treatment in the Brewery 217
What is Wastewater?
Why Do We Treat Wastewater?
How is Wastewater Treated?
Removal of Suspended Solids
pH Adjustment/Equalization Tank
Filtration of Fines
Digestion
Sludge Dewatering
Appendix A Chemistry Glossary and Primer 233
Appendix B Acidification of Sparging or Brewing Water 249
Appendix C Ion, Salt and Acid Calculations 263
Appendix D Water Charge Balance and Carbonate Species Distribution 273
Index 279