{"id":3753,"date":"2013-04-25T14:24:00","date_gmt":"2013-04-25T18:24:00","guid":{"rendered":"http:\/\/beersmith.com\/blog\/?p=3753"},"modified":"2014-02-06T11:12:43","modified_gmt":"2014-02-06T16:12:43","slug":"hops-and-beer-bitterness-with-dr-charlie-bamforth-beersmith-podcast-58","status":"publish","type":"post","link":"https:\/\/beersmith.com\/blog\/2013\/04\/25\/hops-and-beer-bitterness-with-dr-charlie-bamforth-beersmith-podcast-58\/","title":{"rendered":"Hops and Beer Bitterness with Dr Charlie Bamforth &#8211; BeerSmith Podcast #58"},"content":{"rendered":"<div style=\"float: right; margin-left: 10px;\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" data-via=\"beersmith\" data-count=\"vertical\" data-url=\"https:\/\/beersmith.com\/blog\/2013\/04\/25\/hops-and-beer-bitterness-with-dr-charlie-bamforth-beersmith-podcast-58\/\">Tweet<\/a><\/div>\n<p><a href=\"http:\/\/www.beersmith.com\/blog\/wp-content\/uploads\/2010\/11\/blog-mic.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright\" title=\"blog-mic\" alt=\"\" src=\"http:\/\/www.beersmith.com\/blog\/wp-content\/uploads\/2010\/11\/blog-mic-150x150.jpg\" width=\"150\" height=\"150\" \/><\/a>This week I invite Dr Charles Bamforth to talk with us about beer bitterness, isomerization, alpha acids and hops in your home brewed beer. Dr Bamforth is a Professor of Brewing Science at the University of California at Davis, and author of numerous books.<\/p>\n<p><a href=\"http:\/\/traffic.libsyn.com\/beersmith\/BSHB-58-Bamforth.mp3\">Download the MP3 File <\/a>\u2013 Right Click and &#8220;Save As&#8221; to download this mp3 file<\/p>\n<p>[audio:http:\/\/traffic.libsyn.com\/beersmith\/BSHB-58-Bamforth.mp3]<br \/>\n<iframe loading=\"lazy\" src=\"http:\/\/www.youtube.com\/embed\/fpqzB75XmPk\" height=\"315\" width=\"420\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/p>\n<h3>Topics in This Week&#8217;s Episode (48:45)<\/h3>\n<ul>\n<li>\u00a0Dr Charlie Bamforth is this week&#8217;s guest. <a href=\"http:\/\/faculty.bftv.ucdavis.edu\/fst\/Bamforth\/\/\">Dr Bamforth is a Professor of Brewing Science<\/a> at the University of California at Davis, and author of many books including <a href=\"http:\/\/amzn.to\/Y6C68d\">Beer is Proof that God Loves Us<\/a>, <a href=\"http:\/\/amzn.to\/11F4SuZ\">Beer: Tap into the Art and Science of Brewing<\/a>, and <a href=\"http:\/\/amzn.to\/14ScxLf\">Scientific Principles of Malting and Brewing<\/a> (Amazon affiliate links).<\/li>\n<li>We start with a general discussion of &#8220;bitterness substances&#8221; and their role in beer.<\/li>\n<li>Charlie talks about how alpha acid shapes hop bitterness &#8211; both for high alpha and low alpha hops<\/li>\n<li>I ask Dr Bamforth to talk about the isomerization process that takes place in the boil<\/li>\n<li>We discuss the different types of iso-alpha acids<\/li>\n<li>IBUs are only one measure of hop flavor &#8211; we talk about why IBUs don&#8217;t tell the whole story when it comes to hop flavors<\/li>\n<li>Charlie explains &#8220;essential oils&#8221; and why it is important to use very late hop additions to preserve these oils<\/li>\n<li>We talk about how hops both preserve and also play a role in the skunky flavor we get when beer is exposed to light<\/li>\n<li>Charlie walks us through head retention and how hops play a critical role in foam (also <a href=\"https:\/\/beersmith.com\/blog\/2011\/09\/28\/head-retention-with-the-pope-of-foam-beersmith-podcast-23\/\">discussed in podcast 23<\/a>)<\/li>\n<li>We talk about gushing and some potential causes<\/li>\n<li>Charlie shares his thoughts on applying this knowledge to home brewing<\/li>\n<li>He also shares his final thought on potential health effects from hops<\/li>\n<li>Dr Bamforth is developing a new series of books mentioned in the show available from the <a href=\"http:\/\/www.asbcnet.org\/\">American Society of Brewing Chemists<\/a><\/li>\n<\/ul>\n<p>Thanks to Charlie Bamforth for appearing on the show and also to you for listening!<\/p>\n<h3>Thoughts on the Podcast?<\/h3>\n<p>Leave me a comment below or visit our <a href=\"http:\/\/beersmith.com\/forum\">discussion forum<\/a> to leave a comment in the podcast section there.<\/p>\n<h3>Subscribe to the Podcast<\/h3>\n<p><strong>Great News!<\/strong> We&#8217;ve been featured in the New and Notable podcasts on iTunes.<\/p>\n<p><a href=\"http:\/\/itunes.apple.com\/podcast\/beersmith-home-brewing-blog\/id398500515\"><img loading=\"lazy\" decoding=\"async\" title=\"Subscribe on iTunes\" alt=\"Subscribe on iTunes\" src=\"http:\/\/ax.phobos.apple.com.edgesuite.net\/images\/web\/linkmaker\/badge_itunes-lrg.gif\" width=\"82\" height=\"30\" \/><\/a><\/p>\n<p>If you are not using iTunes, you can subscribe using this feed:<\/p>\n<ul>\n<li><strong> http:\/\/feeds.feedburner.com\/BeersmithcomHomeBrewingBlog<\/strong><\/li>\n<\/ul>\n<p>And finally, don&#8217;t forget to subscribe to the blog and <a href=\"https:\/\/beersmith.com\/blog\/subscribe\">my newsletter<\/a> (use the links in the sidebar) \u2013 to get free weekly articles on home brewing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tweet This week I invite Dr Charles Bamforth to talk with us about beer bitterness, isomerization, alpha acids and hops 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Dr Bamforth is a Professor of Brewing Science at the University of California at Davis, and author of numerous books."],"_aioseop_title":["Hops and Beer Bitterness with Dr Charlie Bamforth - BeerSmith Podcast #58"],"rp4wp_auto_linked":["1"],"_uag_page_assets":["a:9:{s:3:\"css\";s:0:\"\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:0:{}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1779400321\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"]},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"Brad Smith","author_link":"https:\/\/beersmith.com\/blog\/author\/beersmith\/"},"uagb_comment_info":0,"uagb_excerpt":"Tweet This week I invite Dr Charles Bamforth to talk with us about beer bitterness, isomerization, alpha acids and hops [&hellip;]","_links":{"self":[{"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/posts\/3753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/comments?post=3753"}],"version-history":[{"count":18,"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/posts\/3753\/revisions"}],"predecessor-version":[{"id":4385,"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/posts\/3753\/revisions\/4385"}],"wp:attachment":[{"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/media?parent=3753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/categories?post=3753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beersmith.com\/blog\/wp-json\/wp\/v2\/tags?post=3753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}