{"id":9,"date":"2004-12-11T16:49:30","date_gmt":"2004-12-11T20:49:30","guid":{"rendered":"http:\/\/www.heartriverhomebrewers.com\/?p=9"},"modified":"2007-09-18T16:54:42","modified_gmt":"2007-09-18T20:54:42","slug":"water-filter-and-their-effects-on-brewing-water","status":"publish","type":"post","link":"http:\/\/www.heartriverhomebrewers.com\/?p=9","title":{"rendered":"Water Filter and Their Effects on Brewing Water"},"content":{"rendered":"<p>Water Filters Effect on Brewing Water (by Jon Stika)<\/p>\n<p>Activated charcoal (carbon) should reduce Cl significantly and may affect SO4 (as it also has a negative charge and high molecular weight) but I don&#8217;t believe it will affect Ca, Mg, Na, and HCO3 significantly even though HCO3 does carry a negative charge. HCO3 and Ca typically will buffer each other, so if a little HCO3 is removed by the activated carbon filter, it will &#8220;bounce back&#8221; after the filter if the water is the same pH.<\/p>\n<p>The positively charged Ca, Mg, and Na ions should go right through the filter and activated carbon. Ca is a good thing for brewing (yeast nutrition), Mg really doesn&#8217;t make much difference unless it&#8217;s really high and then will have a laxative effect (oh no), Na isn&#8217;t a hugh issue unless it is high and in combination with a high SO4 concentration then it will make give beer a nasty harshness (this is the problem I had with Patterson Lake water and to a lesser degree with SW pipeline water). Cl as an ion lends some sweetness to beer, but as a gas (Cl2) or trihalomethane gives a &#8220;cholrinated swimming pool&#8221; taste.<\/p>\n<p>So I believe your filter will knock down the Cl taste if it has activated carbon, may reduce SO4 some, but will have little effect on the rest of the major ions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Water Filters Effect on Brewing Water (by Jon Stika) Activated charcoal (carbon) should reduce Cl significantly and may affect SO4 (as it also has a negative charge and high molecular weight) but I don&#8217;t believe it will affect Ca, Mg, Na, and HCO3 significantly even though HCO3 does carry a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[],"_links":{"self":[{"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=\/wp\/v2\/posts\/9"}],"collection":[{"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9"}],"version-history":[{"count":0,"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=\/wp\/v2\/posts\/9\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.heartriverhomebrewers.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}