{"id":4677,"date":"2026-05-26T10:25:45","date_gmt":"2026-05-26T02:25:45","guid":{"rendered":"https:\/\/rubasseroasters.com\/?p=4677"},"modified":"2026-05-26T10:35:45","modified_gmt":"2026-05-26T02:35:45","slug":"challenging-the-stereotype-of-bitter-burnt-dark-roasts-dark-roast-expert-lin-san-coffee","status":"publish","type":"post","link":"https:\/\/rubasseroasters.com\/zh\/challenging-the-stereotype-of-bitter-burnt-dark-roasts-dark-roast-expert-lin-san-coffee\/","title":{"rendered":"Challenging the Stereotype of Bitter, Burnt Dark Roasts \u2013 Dark Roast Expert: Lin-san Coffee"},"content":{"rendered":"<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Lin-san formerly operated &#8220;Tree Man Coffee,&#8221; a cafe in Tamsui, New Taipei City. Three years ago, the surge of the COVID-19 pandemic prompted him to rethink his business model. This led to his transformation into a dedicated roasting factory located in Zhonghe, focusing on high-quality dark roast experiences sold through his own e-commerce platform. With over ten years of experience, Lin-san chose estate-grade specialty beans for his dark roasts, shattering the current market perception of specialty coffee. His revenue has grown 20-fold in the past two years. Today, let\u2019s join the Rubasse special correspondents to discuss how he achieved such an incredible milestone.<\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Interview Highlights<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>How do you dare to call yourself a &#8220;Dark Roast Expert&#8221;?<\/strong><strong><br><\/strong>Traditional dark roasting was often used to mask defects, but Lin-san took the opposite approach. He utilizes the rich flavor compounds of specialty beans to explore thermochemical changes. By preserving &#8220;light roast flavors&#8221; within a dark roast profile and avoiding negative burnt notes, he produces coffee dropped at $235\u00b0C$ with an Agtron value of 25\u201330 that\u2014surprisingly\u2014retains fruity notes.<\/li>\n\n\n\n<li><strong>Why choose a Rubasse Coffee Roaster?<\/strong><strong><br><\/strong>Unlike traditional machines where airflow and heat are tied together, preventing independent parameter testing, Lin-san describes the Rubasse as an &#8220;American muscle car&#8221;\u2014emphasizing pure control and performance. With independent control over Heat Power , Airflow, and Drum Speed , combined with real-time feedback on Humidity and Pressure Differential, the machine is a powerful ally for flavor research and experimentation.<\/li>\n\n\n\n<li><strong>Unique Business Model and Philosophy<\/strong><strong><br><\/strong>Why did Lin-san choose four Micro 3kg roasters instead of one large 12kg machine? By clarifying his Capacity Planning, he focuses on refined production and quality consistency. Utilizing Rubasse\u2019s Automation, he executes a Parallel Production strategy, providing a perfect demonstration of a next-generation specialty coffee production solution!<\/li>\n\n\n\n<li><strong>E-commerce Customer Service Philosophy<\/strong><strong><br><\/strong>How do you maintain customer relationships on a purely digital platform? By helping customers find &#8220;coffee they like&#8221; rather than just &#8220;good coffee.&#8221; Lin-san believes the product accounts for 40% of the brand, while the remaining 60% is service and companionship. He invests heavily in active online community management to build a sense of &#8220;digital presence&#8221; in his customers&#8217; hearts.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Several of Lin-san&#8217;s dark roast recipes have earned a 92-point rating from the international institution Coffee Review.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/treeman.tw\/\" target=\"_blank\" rel=\"noopener\"><strong>Lin San Coffee Official Website<\/strong><\/a><\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>How the Micro 3kg Professional Edition Helps Lin-san Build a Flexible, Stable, and Energy-Efficient Line<\/strong><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Digital Touch Panel: The Ultimate Lab Assistant<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">My journey in roasting started with hand-held nets, then small Hot Air and Direct Flame machines, eventually working my way up to large-scale industrial roasters. The reason I chose Rubasse is that its control system is perfect for research. On traditional roasters, airflow and heat are somewhat &#8216;linked&#8217;\u2014if you want more heat but close the damper too much, the flame goes out or combustion becomes incomplete, affecting heat transfer. You can&#8217;t isolate specific parameters to see their impact. Rubasse solved this, helping me uncover the underlying logic of roasting&#8230;&#8221;<\/p>","protected":false},"excerpt":{"rendered":"<p>Lin-san formerly operated &#8220;Tree Man Coffee,&#8221; a cafe in Tamsui, New Taipei City. Three years ago, the surge of the COVID-19 pandemic prompted him to rethink his business model. This led to his transformation into a dedicated roasting factory located in Zhonghe, focusing on high-quality dark roast experiences sold through his own e-commerce platform. With [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":4679,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1,21,48],"tags":[],"class_list":["post-4677","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1","category-blog","category-users-sharing"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/posts\/4677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/comments?post=4677"}],"version-history":[{"count":0,"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/posts\/4677\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/media\/4679"}],"wp:attachment":[{"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/media?parent=4677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/categories?post=4677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rubasseroasters.com\/zh\/wp-json\/wp\/v2\/tags?post=4677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}