{"id":136,"date":"2017-08-07T00:00:00","date_gmt":"2017-08-06T22:00:00","guid":{"rendered":"https:\/\/www.kafone.eu\/cs\/2026\/04\/06\/milovnici-kavy-ziji-dele-a-hrozi-jim-mene-nemoci-veda\/"},"modified":"2026-08-27T09:32:16","modified_gmt":"2026-08-27T07:32:16","slug":"kava-co-obsahuje-a-pozitek","status":"publish","type":"post","link":"https:\/\/www.kafone.eu\/cs\/blog\/kava-co-obsahuje-a-pozitek\/","title":{"rendered":"K\u00e1va pod lupou: co obsahuje a jak si ji vychutnat"},"content":{"rendered":"
\n
Shrnut\u00ed<\/div>\n

K\u00e1va pat\u0159\u00ed k nejv\u00edce zkouman\u00fdm n\u00e1poj\u016fm \u2013 zaj\u00edm\u00e1 se o ni potravin\u00e1\u0159sk\u00e1 chemie i p\u011bstitel\u00e9. V tomto p\u0159ehledu se pod\u00edv\u00e1me \u010dist\u011b fakticky na to, co k\u00e1va obsahuje (kofein jako p\u0159irozen\u00e1 slo\u017eka, polyfenoly, chlorogenov\u00e9 kyseliny, melanoidiny vznikaj\u00edc\u00ed pra\u017een\u00edm), \u010d\u00edm se li\u0161\u00ed k\u00e1va bezkofeinov\u00e1, kolik kofeinu se v \u0161\u00e1lku obvykle najde a jak si k\u00e1vu co nejl\u00e9pe p\u0159ipravit. Nejde o zdravotn\u00ed poradenstv\u00ed ani o tvrzen\u00ed o \u00fa\u010dinc\u00edch k\u00e1vy.<\/p>\n<\/div>\n

K\u00e1va je jedn\u00edm z nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edch a z\u00e1rove\u0148 chemicky nejzaj\u00edmav\u011bj\u0161\u00edch n\u00e1poj\u016f na sv\u011bt\u011b. Vznik\u00e1 pra\u017een\u00edm zrn a jejich louhov\u00e1n\u00edm ve vod\u011b; chu\u0165 z\u00e1vis\u00ed na odr\u016fd\u011b, p\u016fvodu, zpracov\u00e1n\u00ed a pra\u017een\u00ed. N\u00e1sleduj\u00edc\u00ed p\u0159ehled je \u010dist\u011b informativn\u00ed a faktick\u00fd \u2013 popisuje slo\u017een\u00ed k\u00e1vy, obsah kofeinu a tipy na p\u0159\u00edpravu. Nejde o zdravotn\u00ed ani v\u00fd\u017eivov\u00e9 doporu\u010den\u00ed a ani o tvrzen\u00ed o \u00fa\u010dinc\u00edch konkr\u00e9tn\u00edch produkt\u016f.<\/p>\n

Co k\u00e1va obsahuje<\/h2>\n

Za chut\u00ed, aroma i barvou n\u00e1poje stoj\u00ed stovky p\u0159irozen\u011b obsa\u017een\u00fdch l\u00e1tek. K nej\u010dast\u011bji zmi\u0148ovan\u00fdm pat\u0159\u00ed:<\/p>\n

    \n
  • Kofein:<\/strong> p\u0159irozen\u00e1 slo\u017eka k\u00e1vov\u00fdch zrn. Jeho obsah z\u00e1vis\u00ed na odr\u016fd\u011b (Arabica ho obvykle obsahuje m\u00e9n\u011b ne\u017e Robusta), d\u00e1vce a zp\u016fsobu p\u0159\u00edpravy. Orienta\u010dn\u011b b\u00fdv\u00e1 v \u0161\u00e1lku p\u0159ekap\u00e1van\u00e9 k\u00e1vy zhruba 80\u2013120 mg kofeinu, v espressu p\u0159ibli\u017en\u011b 60\u201380 mg.<\/li>\n
  • Polyfenoly a chlorogenov\u00e9 kyseliny:<\/strong> skupina l\u00e1tek p\u0159irozen\u011b obsa\u017een\u00fdch v zelen\u00fdch i pra\u017een\u00fdch zrnech. Jejich mno\u017estv\u00ed se m\u011bn\u00ed pra\u017een\u00edm \u2013 tmav\u0161\u00ed pra\u017een\u00ed jich obvykle \u010d\u00e1st odbour\u00e1.<\/li>\n
  • Melanoidiny:<\/strong> hn\u011bd\u00e9 l\u00e1tky, kter\u00e9 vznikaj\u00ed a\u017e b\u011bhem pra\u017een\u00ed (Maillardov\u00fdmi reakcemi) a pod\u00edlej\u00ed se na barv\u011b a \u010d\u00e1sti chu\u0165ov\u00e9ho profilu k\u00e1vy.<\/li>\n<\/ul>\n

    \u0158ada t\u011bchto l\u00e1tek z\u016fst\u00e1v\u00e1 v zrnu i po odstran\u011bn\u00ed kofeinu, tak\u017ee i bezkofeinov\u00e1 (dekofeinovan\u00e1) k\u00e1va si ponech\u00e1v\u00e1 podobn\u00fd chemick\u00fd z\u00e1klad i chu\u0165ov\u00fd charakter jako k\u00e1va klasick\u00e1.<\/p>\n

    Bezkofeinov\u00e1 k\u00e1va a obsah kofeinu<\/h2>\n

    Kofein je p\u0159irozen\u00e1 slo\u017eka k\u00e1vy, kterou lze p\u0159i dekofeinaci z velk\u00e9 \u010d\u00e1sti odstranit. Dekofeinovan\u00e1 k\u00e1va nen\u00ed \u201ebez kofeinu\u201c \u00fapln\u011b \u2013 obsahuje jen stopov\u00e9 mno\u017estv\u00ed. Podle vyhl\u00e1\u0161ky \u010d. 187\/2023 Sb. sm\u00ed pra\u017een\u00e1 k\u00e1va ozna\u010den\u00e1 jako bezkofeinov\u00e1 obsahovat nejv\u00fd\u0161e 0,1 % kofeinu v su\u0161in\u011b. Je to praktick\u00e1 volba, pokud si chcete dop\u0159\u00e1t \u0161\u00e1lek k\u00e1vy ve\u010der nebo chcete mno\u017estv\u00ed kofeinu ve sv\u00e9m dni omezit.<\/p>\n

    Kofein se ze zrn odstra\u0148uje n\u011bkolika technologick\u00fdmi postupy. K \u010dasto popisovan\u00fdm pat\u0159\u00ed metoda Swiss Water<\/strong>, p\u0159i n\u00ed\u017e se pracuje pouze s vodou a aktivn\u00edm uhl\u00edm, bez pou\u017eit\u00ed rozpou\u0161t\u011bdel. R\u016fzn\u00e9 metody se li\u0161\u00ed t\u00edm, jak dob\u0159e se p\u0159i nich da\u0159\u00ed zachovat p\u016fvodn\u00ed chu\u0165 zrna.<\/p>\n

    Kolik k\u00e1vy a na co d\u00e1t pozor<\/h2>\n

    Chu\u0165 a vhodn\u00e9 mno\u017estv\u00ed jsou u k\u00e1vy hodn\u011b individu\u00e1ln\u00ed. P\u00e1r faktick\u00fdch vod\u00edtek k bezpe\u010dn\u00e9 konzumaci:<\/p>\n

      \n
    • Podle Evropsk\u00e9ho \u00fa\u0159adu pro bezpe\u010dnost potravin (EFSA) je pro v\u011bt\u0161inu zdrav\u00fdch dosp\u011bl\u00fdch bez obav p\u0159\u00edjem kofeinu do zhruba 400 mg denn\u011b<\/strong> (p\u0159ibli\u017en\u011b 3\u20134 \u0161\u00e1lky k\u00e1vy) a jednor\u00e1zov\u011b do zhruba 200 mg. Zdroj: stanovisko EFSA ke kofeinu (2015).<\/li>\n
    • V t\u011bhotenstv\u00ed a p\u0159i kojen\u00ed<\/strong> EFSA uv\u00e1d\u00ed jako orienta\u010dn\u00ed hranici zhruba 200 mg kofeinu denn\u011b<\/strong>. Konkr\u00e9tn\u00ed situaci v\u017edy konzultujte s l\u00e9ka\u0159em.<\/li>\n
    • Velmi hork\u00e9 n\u00e1poje: Mezin\u00e1rodn\u00ed agentura pro v\u00fdzkum rakoviny (IARC\/WHO) v roce 2016 upozornila, \u017ee pit\u00ed velmi hork\u00fdch n\u00e1poj\u016f, tedy nad zhruba 65 \u00b0C, je pravd\u011bpodobn\u011b karcinogenn\u00ed pro \u010dlov\u011bka (skupina 2A), a to zejm\u00e9na ve vztahu k rakovin\u011b j\u00edcnu. Samotnou k\u00e1vu p\u0159itom t\u00e1\u017e hodnotic\u00ed zpr\u00e1va za\u0159adila do skupiny 3, tedy mezi l\u00e1tky, u nich\u017e nelze karcinogenitu hodnotit \u2014 rozhoduj\u00edc\u00ed je teplota n\u00e1poje, ne k\u00e1va jako takov\u00e1. Praktick\u00e9 doporu\u010den\u00ed je jednoduch\u00e9 \u2013 nechte k\u00e1vu p\u0159ed napit\u00edm m\u00edrn\u011b zchladnout.<\/li>\n<\/ul>\n

      Vhodn\u00e9 mno\u017estv\u00ed se u jednotliv\u00fdch lid\u00ed li\u0161\u00ed; p\u0159i zdravotn\u00edch pot\u00ed\u017e\u00edch nebo pochybnostech se pora\u010fte s l\u00e9ka\u0159em \u010di jin\u00fdm kvalifikovan\u00fdm odborn\u00edkem.<\/p>\n

      Jak si k\u00e1vu vychutnat co nejl\u00e9pe<\/h2>\n

      Aby v\u00e1m ka\u017ed\u00fd \u0161\u00e1lek ud\u011blal radost a stal se p\u0159\u00edjemn\u00fdm ritu\u00e1lem dne, mohou se hodit tyto tipy:<\/p>\n

        \n
      1. S\u00e1zejte na kvalitn\u00ed zrnkovou k\u00e1vu:<\/strong> instantn\u00ed k\u00e1vy a n\u011bkter\u00e9 \u201ek\u00e1vy z automatu\u201c ztr\u00e1cej\u00ed zpracov\u00e1n\u00edm \u010d\u00e1st chu\u0165ov\u00fdch a aromatick\u00fdch l\u00e1tek. \u010cerstv\u011b namlet\u00e1 zrna daj\u00ed n\u00e1poji pln\u011bj\u0161\u00ed t\u011blo i aroma.<\/li>\n
      2. Nep\u0159eslazujte:<\/strong> velk\u00e9 mno\u017estv\u00ed cukru a hust\u00fdch ochucen\u00fdch sirup\u016f chu\u0165 k\u00e1vy p\u0159ekr\u00fdv\u00e1. Zkuste k\u00e1vu \u010dernou, p\u0159\u00edpadn\u011b jen s trochou kvalitn\u00edho ml\u00e9ka, a nechte vyniknout jej\u00ed p\u0159irozenou chu\u0165.<\/li>\n
      3. Vyberte pra\u017een\u00ed podle chuti:<\/strong> sv\u011btlej\u0161\u00ed pra\u017een\u00ed b\u00fdv\u00e1 kyselej\u0161\u00ed a ovocn\u011bj\u0161\u00ed, tmav\u0161\u00ed pra\u017een\u00ed m\u00e1 pln\u011bj\u0161\u00ed, ho\u0159\u010d\u00ed a \u201e\u010dokol\u00e1dov\u011bj\u0161\u00ed\u201c t\u011blo. Sv\u011btleji pra\u017een\u00e1 k\u00e1va si zpravidla ponech\u00e1v\u00e1 vy\u0161\u0161\u00ed pod\u00edl chlorogenov\u00fdch kyselin ne\u017e k\u00e1va pra\u017een\u00e1 velmi tmav\u011b.<\/li>\n
      4. Hl\u00eddejte \u010derstvost a p\u0159\u00edpravu:<\/strong> k\u00e1vu melte a\u017e t\u011bsn\u011b p\u0159ed p\u0159\u00edpravou, pou\u017e\u00edvejte vhodnou teplotu vody (zhruba 92\u201396 \u00b0C) a spr\u00e1vn\u00fd pom\u011br k\u00e1vy a vody. Drobn\u00e9 \u00fapravy hrubosti mlet\u00ed v\u00fdrazn\u011b m\u011bn\u00ed v\u00fdslednou chu\u0165.<\/li>\n<\/ol>\n
        \n

        Upozorn\u011bn\u00ed:<\/strong> Tento \u010dl\u00e1nek m\u00e1 pouze informativn\u00ed charakter a popisuje slo\u017een\u00ed k\u00e1vy, obsah kofeinu a tipy na p\u0159\u00edpravu. Nejde o zdravotn\u00ed ani v\u00fd\u017eivov\u00e9 poradenstv\u00ed ani o tvrzen\u00ed o l\u00e9\u010div\u00fdch, preventivn\u00edch \u010di jin\u00fdch zdravotn\u00edch \u00fa\u010dinc\u00edch k\u00e1vy nebo produkt\u016f nab\u00edzen\u00fdch na tomto webu. Uveden\u00e9 bezpe\u010dnostn\u00ed \u00fadaje (EFSA, IARC\/WHO) jsou obecn\u00e9 a orienta\u010dn\u00ed. M\u00e1te-li konkr\u00e9tn\u00ed zdravotn\u00ed pot\u00ed\u017ee nebo ot\u00e1zky ke sv\u00e9 strav\u011b, obra\u0165te se na l\u00e9ka\u0159e \u010di jin\u00e9ho kvalifikovan\u00e9ho odborn\u00edka.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        Shrnut\u00ed K\u00e1va pat\u0159\u00ed k nejv\u00edce zkouman\u00fdm n\u00e1poj\u016fm \u2013 zaj\u00edm\u00e1 se o ni potravin\u00e1\u0159sk\u00e1 chemie i p\u011bstitel\u00e9. V tomto p\u0159ehledu se […]<\/p>\n","protected":false},"author":1,"featured_media":135,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[19],"tags":[],"class_list":["post-136","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kava-a-kofein"],"_links":{"self":[{"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/posts\/136","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/comments?post=136"}],"version-history":[{"count":3,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/posts\/136\/revisions"}],"predecessor-version":[{"id":668,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/posts\/136\/revisions\/668"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/media\/135"}],"wp:attachment":[{"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/media?parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/categories?post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kafone.eu\/cs\/wp-json\/wp\/v2\/tags?post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}