The map is the average hardness of water but not always accurate representation of how soft or hard the water may be where you reside. (petitebottoms.com)
*** You can also look up your counties water report online, or phone your water company and just ask what the total hardness of water is in your area. (whattoexpect.com)
To start, you can look up the hardness of your water online (New Yorkers can call 311), and use that information to buy beans that are meant for «soft» or «hard» water. (businessinsider.com)