Koncentrace kofeinu v \u0161\u00e1lku k\u00e1vy z\u00e1vis\u00ed na mnoha faktorech a ty nejsiln\u011bj\u0161\u00ed k\u00e1vy ne v\u017edy odpov\u00eddaj\u00ed va\u0161im o\u010dek\u00e1v\u00e1n\u00edm. Zde je vysv\u011btlen\u00ed.<\/p>\n\n\n\n
Mnoz\u00ed z n\u00e1s si nedok\u00e1\u017eou p\u0159edstavit za\u010d\u00e1tek dne bez \u0161\u00e1lku hork\u00e9 k\u00e1vy nebo espressa. Kofein, p\u0159irozen\u011b obsa\u017een\u00fd v sem\u00ednk\u00e1ch, ze kter\u00fdch se tento n\u00e1poj vyr\u00e1b\u00ed, je zn\u00e1m\u00fd sv\u00fdmi povzbuzuj\u00edc\u00edmi vlastnostmi.<\/p>\n\n\n\n
Legenda prav\u00ed, \u017ee pr\u00e1v\u011b proto za\u010dal jemensk\u00fd past\u00fd\u0159 Kaldi p\u011bstovat tuto rostlinu pot\u00e9, co pozoroval jej\u00ed povzbuzuj\u00edc\u00ed \u00fa\u010dinek na sv\u00e9 kozy.<\/p>\n\n\n\n
Dodnes k\u00e1va st\u00e1le sv\u00e1d\u00ed pozdn\u00ed pt\u00e1\u010data, a nejen je.<\/p>\n\n\n\n
Ne\u017e se pono\u0159\u00edme do detail\u016f p\u0159\u00edpravy tohoto slavn\u00e9ho hork\u00e9ho n\u00e1poje, mus\u00edme za\u010d\u00edt od za\u010d\u00e1tku: s r\u016fzn\u00fdmi druhy zrn. Obsah kofeinu v zrnech se v\u00fdrazn\u011b li\u0161\u00ed v z\u00e1vislosti na odr\u016fd\u011b, p\u016fvodu a dokonce i plant\u00e1\u017ei. V sou\u010dasn\u00e9 dob\u011b se k v\u00fdrob\u011b k\u00e1vov\u00fdch n\u00e1poj\u016f pou\u017e\u00edvaj\u00ed dv\u011b odr\u016fdy. Robusta produkuje siln\u00e1 zrna s ho\u0159\u010d\u00ed chut\u00ed a v d\u016fsledku toho s vy\u0161\u0161\u00edm obsahem kofeinu. Ten tvo\u0159\u00ed v pr\u016fm\u011bru 2 a\u017e 3 % hmotnosti such\u00fdch k\u00e1vov\u00fdch zrn. Arabica se naopak vyzna\u010duje jemn\u011bj\u0161\u00ed chut\u00ed a ni\u017e\u0161\u00edm obsahem kofeinu, kter\u00fd tvo\u0159\u00ed v pr\u016fm\u011bru pouze 1 % celkov\u00e9 hmotnosti zrn.<\/p>\n\n\n\n
P\u0159esto\u017ee zrna robusty, nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed k\u00e1vov\u00e1 zrna na sv\u011bt\u011b, obsahuj\u00ed vy\u0161\u0161\u00ed obsah kofeinu, koncentrace hotov\u00e9ho n\u00e1poje z\u00e1vis\u00ed tak\u00e9 na zp\u016fsobu p\u0159\u00edpravy. D\u00e1vka kofeinu bude samoz\u0159ejm\u011b z\u00e1viset na mno\u017estv\u00ed p\u0159idan\u00e9 vody, ale tak\u00e9 na dob\u011b louhov\u00e1n\u00ed. P\u0159i stejn\u00e9 d\u00e1vce bude tedy espresso koncentrovan\u011bj\u0161\u00ed ne\u017e filtrovan\u00e1 k\u00e1va. V praxi je v\u0161ak objem tradi\u010dn\u011b konzumovan\u00e9ho espressa v\u00fdrazn\u011b ni\u017e\u0161\u00ed ne\u017e u filtrovan\u00e9 k\u00e1vy. Espresso o objemu 3\u20135 cl tedy bude obsahovat 80\u2013100 mg kofeinu, oproti 135\u2013150 mg v \u0161\u00e1lku filtrovan\u00e9 k\u00e1vy o objemu 20 cl. \u010c\u00edm koncentrovan\u011bj\u0161\u00ed je espresso, t\u00edm ni\u017e\u0161\u00ed bude celkov\u00fd p\u0159\u00edjem kofeinu ve srovn\u00e1n\u00ed s filtrovanou k\u00e1vou.<\/p>\n\n\n\n
Doporu\u010duje se, aby zdrav\u00fd dosp\u011bl\u00fd \u010dlov\u011bk nep\u0159ekro\u010dil denn\u00ed p\u0159\u00edjem 400 mg kofeinu, co\u017e zhruba odpov\u00edd\u00e1 \u010dty\u0159em espress\u016fm. Konzumace velk\u00e9ho mno\u017estv\u00ed kofeinu m\u016f\u017ee m\u00edt negativn\u00ed \u00fa\u010dinky na t\u011blo, jako je nervozita nebo zv\u00fd\u0161en\u00e1 tepov\u00e1 frekvence. Je tak\u00e9 d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee lid\u00e9 maj\u00ed r\u016fznou \u00farove\u0148 citlivosti na stimula\u010dn\u00ed \u00fa\u010dinky kofeinu, co\u017e je t\u0159eba vz\u00edt v \u00favahu p\u0159i p\u0159\u00edprav\u011b n\u00e1poje.<\/p>\n","protected":false},"excerpt":{"rendered":"Koncentrace kofeinu v \u0161\u00e1lku k\u00e1vy z\u00e1vis\u00ed na mnoha faktorech a ty nejsiln\u011bj\u0161\u00ed k\u00e1vy ne v\u017edy odpov\u00eddaj\u00ed va\u0161im o\u010dek\u00e1v\u00e1n\u00edm. Zde je vysv\u011btlen\u00ed. Mnoz\u00ed z \n [...]<\/a>","protected":false},"author":1,"featured_media":267,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/posts\/266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=266"}],"version-history":[{"count":1,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/posts\/266\/revisions"}],"predecessor-version":[{"id":268,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/posts\/266\/revisions\/268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=\/wp\/v2\/media\/267"}],"wp:attachment":[{"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fakt24.biz.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}