{"id":1291,"date":"2017-05-09T10:16:25","date_gmt":"2017-05-09T14:16:25","guid":{"rendered":"\/\/phytochemia.com\/?p=1291"},"modified":"2017-05-09T10:16:25","modified_gmt":"2017-05-09T14:16:25","slug":"caffeine-an-early-morning-subject-2","status":"publish","type":"articles-de-blogue","link":"https:\/\/phytochemia.com\/en\/articles-de-blogue\/caffeine-an-early-morning-subject-2\/","title":{"rendered":"Caffeine, an early morning subject !"},"content":{"rendered":"<p><em>Dany Mass\u00e9, Chimiste, B.Sc.<\/em><\/p>\n<p style=\"text-align: justify;\">May you drink it black, espresso or with cream, almost everyone have his own recipe for a tasty coffee.<\/p>\n<p style=\"text-align: justify;\">Whatever your style, there is one question that people always ask: is there more caffeine in an espresso or in an ordinary filter coffee? Ask around and most people will have some hypothesis on the subject. Being as we are, a coffee in one hand and our trustworthy HPLC in the other, we have decided to become improvised baristas for the time of an analysis.<\/p>\n<p style=\"text-align: justify;\">First, we must say that there are two parameters that can answer this question:<\/p>\n<p style=\"text-align: justify;\"><em>1 \u2013 The total amount of caffeine in the drink, which is the total amount of caffeine that one should expect to drink when drinking the full amount.<\/em><\/p>\n<p style=\"text-align: justify;\"><em>2 \u2013 The concentration of caffeine in the drink, which is the amount of caffeine per milliliter.<\/em><\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_1266\" aria-describedby=\"caption-attachment-1266\" style=\"width: 227px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-1266\" src=\"\/\/phytochemia.com\/wp-content\/uploads\/2017\/05\/Extraction-caf\u00e9-354x750.jpg\" alt=\"extraction-cafe\" width=\"227\" height=\"481\" \/><figcaption id=\"caption-attachment-1266\" class=\"wp-caption-text\"><span class=\"legende\">Extraction of coffee<\/span><\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\">Considering that caffeine is soluble in hot water, the firsts milliliters of water passing through the coffee will be the one doing most of the extraction. Thus, an espresso that is extracted at a higher temperature and pressure than a filter coffee will have a better extraction yield with a smaller volume. A filter coffee is, on the other hand, extracting for a longer time and with a larger volume.<\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<p><em>So without further ado, here are the results:<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-1303\" src=\"\/\/phytochemia.com\/wp-content\/uploads\/2017\/05\/image-1.png\" alt=\"image\" width=\"733\" height=\"155\" \/><\/p>\n<p style=\"text-align: center;\">\u00a0<\/p>\n<p style=\"text-align: center;\"><span class=\"legende\">The results obtained are the means of three measurements.<\/span><\/p>\n<p style=\"text-align: center;\">\u00a0<\/p>\n<p style=\"text-align: justify;\">Even if espresso has a smaller volume, you can see that it pack more punch than the others. Its concentration is 1.6 mg\/ml coffee. Filter coffee is less than half of the espresso concentration at around 0.7 mg\/ml coffee. For the same amount, an espresso contains more caffeine than a filter coffee. However, the filter coffee contains more caffeine globally on account of its larger volume.<\/p>\n<p style=\"text-align: justify;\">So, did you learn something today?<\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 380px; left: 591px;\">Enregistrer<\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">Enregistrer<\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; top: 340px; left: 591px;\">Enregistrer<\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">Enregistrer<\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">Enregistrer<\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">Enregistrer<\/span><\/p>\n<p><span style=\"border-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font: bold 11px\/20px 'Helvetica Neue',Helvetica,sans-serif; color: #ffffff; background: #bd081c  no-repeat scroll 3px 50% \/ 14px 14px; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer;\">Enregistrer<\/span><\/p>\n","protected":false},"template":"","categories-darticle":[35],"class_list":["post-1291","articles-de-blogue","type-articles-de-blogue","status-publish","has-post-thumbnail","hentry","categories-darticle-research-notes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Caffeine, an early morning subject ! - PhytoChemia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/phytochemia.com\/en\/articles-de-blogue\/caffeine-an-early-morning-subject-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Caffeine, an early morning subject ! - PhytoChemia\" \/>\n<meta property=\"og:description\" content=\"Dany Mass\u00e9, Chimiste, B.Sc. May you drink it black, espresso or with cream, almost everyone have his own recipe for a tasty coffee. Whatever your style, there is one question that people always ask: is there more caffeine in an espresso or in an ordinary filter coffee? Ask around and most people will have some [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/phytochemia.com\/en\/articles-de-blogue\/caffeine-an-early-morning-subject-2\/\" \/>\n<meta property=\"og:site_name\" content=\"PhytoChemia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/phytochemia\" \/>\n<meta property=\"article:published_time\" content=\"2017-05-09T14:16:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/phytochemia.com\/wp-content\/uploads\/2025\/12\/phytochemia.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alexis St-Gelais\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@PhytoChemia\" \/>\n<meta name=\"twitter:site\" content=\"@PhytoChemia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Alexis St-Gelais\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/articles-de-blogue\\\/caffeine-an-early-morning-subject-2\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/articles-de-blogue\\\/caffeine-an-early-morning-subject-2\\\/\"},\"author\":{\"name\":\"Alexis St-Gelais\",\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/#\\\/schema\\\/person\\\/a98b87fdc34fc637f6c0d24647c6c362\"},\"headline\":\"Caffeine, an early morning subject !\",\"datePublished\":\"2017-05-09T14:16:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/articles-de-blogue\\\/caffeine-an-early-morning-subject-2\\\/\"},\"wordCount\":328,\"publisher\":{\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/articles-de-blogue\\\/caffeine-an-early-morning-subject-2\\\/#primaryimage\"},\"thumbnailUrl\":\"\",\"articleSection\":[\"Research notes\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/articles-de-blogue\\\/caffeine-an-early-morning-subject-2\\\/\",\"url\":\"https:\\\/\\\/phytochemia.com\\\/en\\\/articles-de-blogue\\\/caffeine-an-early-morning-subject-2\\\/\",\"name\":\"Caffeine, an early morning subject ! 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