{"id":1254,"date":"2026-08-19T15:21:30","date_gmt":"2026-08-19T15:21:30","guid":{"rendered":"https:\/\/www.pivovarlimitededition.cz\/?page_id=1254"},"modified":"2026-08-26T18:38:53","modified_gmt":"2026-08-26T18:38:53","slug":"filtrace-piva","status":"publish","type":"page","link":"https:\/\/www.pivovarlimitededition.cz\/?page_id=1254","title":{"rendered":"Filtrace piva"},"content":{"rendered":"

K \u010demu filtrace piva slou\u017e\u00ed<\/h2>\n

Filtrace piva<\/a> je fyzik\u00e1ln\u00ed operace, p\u0159i kter\u00e9 pivo proch\u00e1z\u00ed filtra\u010dn\u00edm m\u00e9diem a \u010d\u00e1stice se v n\u011bm zachycuj\u00ed. Nej\u010dast\u011bji jde o kvasnice, zbytky chmele, b\u00edlkovinn\u00e9 a polyfenolick\u00e9 komplexy nebo jin\u00e9 \u010d\u00e1stice pod\u00edlej\u00edc\u00ed se na z\u00e1kalu<\/a>.<\/p>\n

Filtrace ale nen\u00ed povinn\u00fdm zakon\u010den\u00edm ka\u017ed\u00e9 v\u00e1rky. Stejn\u00e9ho nebo prakticky srovnateln\u00e9ho v\u00fdsledku lze n\u011bkdy dos\u00e1hnout del\u0161\u00edm zr\u00e1n\u00edm, ochlazen\u00edm, p\u0159irozen\u00fdm sedimentov\u00e1n\u00edm, \u010de\u0159en\u00edm<\/a> nebo opatrn\u00fdm sto\u010den\u00edm piva nad kvasnicov\u00fdm sedimentem.<\/p>\n

V profesion\u00e1ln\u00edm pivovaru m\u016f\u017ee filtrace slou\u017eit k \u0159\u00edzen\u00ed \u010dirosti, stability a v n\u011bkter\u00fdch procesech tak\u00e9 mikrobiologick\u00e9ho zat\u00ed\u017een\u00ed piva. Dom\u00e1c\u00ed pivovarn\u00edk v\u0161ak obvykle nepot\u0159ebuje kop\u00edrovat profesion\u00e1ln\u00ed filtra\u010dn\u00ed linku. D\u016fle\u017eit\u011bj\u0161\u00ed b\u00fdv\u00e1 dob\u0159e veden\u00e9 kva\u0161en\u00ed<\/a>, dostate\u010dn\u00e9 zr\u00e1n\u00ed a \u010dist\u00fd p\u0159evod piva bez p\u0159\u00edstupu kysl\u00edku.<\/p>\n

Filtrace, \u010de\u0159en\u00ed a sedimentace<\/h2>\n

Sedimentace<\/a><\/strong> znamen\u00e1 odd\u011blen\u00ed \u010d\u00e1stic p\u016fsoben\u00edm gravitace. Pivo se nech\u00e1 v klidu, kvasnice a dal\u0161\u00ed \u010d\u00e1stice klesnou ke dnu a \u010dist\u0161\u00ed pivo se st\u00e1hne nad sedimentem. Je to nejjednodu\u0161\u0161\u00ed zp\u016fsob dosa\u017een\u00ed \u010d\u00e1ste\u010dn\u00e9 \u010dirosti a nevy\u017eaduje \u017e\u00e1dn\u00e9 filtra\u010dn\u00ed za\u0159\u00edzen\u00ed.<\/p>\n

\u010ce\u0159en\u00ed<\/strong> je \u0161ir\u0161\u00ed pojem pro dosa\u017een\u00ed \u010dirosti. M\u016f\u017ee zahrnovat sedimentaci, pou\u017eit\u00ed \u010de\u0159ic\u00edho prost\u0159edku, centrifugaci i filtraci. \u010ce\u0159ic\u00ed prost\u0159edek podporuje shlukov\u00e1n\u00ed kvasnic, b\u00edlkovin nebo jin\u00fdch \u010d\u00e1stic, tak\u017ee se rychleji usad\u00ed. Filtrace naproti tomu \u010d\u00e1stice fyzicky zachycuje v m\u00e9diu nebo na filtra\u010dn\u00ed p\u0159ep\u00e1\u017ece.<\/p>\n

Tyto postupy se v profesion\u00e1ln\u00edm provozu \u010dasto kombinuj\u00ed. Pivo se nejprve nech\u00e1 zklidnit, podle typu piva se ochlad\u00ed nebo odst\u0159ed\u00ed a teprve potom se filtruje. \u010c\u00edm v\u00edce kvasnic a kalu filtr zachyt\u00e1v\u00e1, t\u00edm rychleji se zan\u00e1\u0161\u00ed.<\/p>\n

Hrub\u0161\u00ed a jemn\u011bj\u0161\u00ed filtrace<\/h2>\n

Pojmy hrub\u00e1<\/strong> a jemn\u00e1 filtrace<\/a><\/strong> nejsou univerz\u00e1ln\u00ed kategorie s jednou pevn\u011b stanovenou hranic\u00ed. Ozna\u010duj\u00ed p\u0159edev\u0161\u00edm rozd\u00edlnou m\u00edru zachycen\u00ed \u010d\u00e1stic a po\u017eadovan\u00fd v\u00fdsledek.<\/p>\n

Hrub\u0161\u00ed filtrace odstra\u0148uje v\u011bt\u0161\u00ed \u010d\u00e1stice, nap\u0159\u00edklad zbytky chmele nebo hrub\u00fd sediment. Pivo po n\u00ed m\u016f\u017ee z\u016fstat \u010d\u00e1ste\u010dn\u011b zakalen\u00e9, ale filtr se obvykle nezan\u00e1\u0161\u00ed tak rychle. Tento stupe\u0148 m\u016f\u017ee slou\u017eit jako p\u0159edfiltrace p\u0159ed jemn\u011bj\u0161\u00edm m\u00e9diem.<\/p>\n

Jemn\u011bj\u0161\u00ed filtrace zachyt\u00ed v\u00edce kvasnic a drobn\u00fdch \u010d\u00e1stic, tak\u017ee pivo m\u016f\u017ee b\u00fdt v\u00fdrazn\u011b \u010dir\u0161\u00ed. Sou\u010dasn\u011b ale rostou n\u00e1roky na p\u0159ed\u010di\u0161t\u011bn\u00ed piva, filtra\u010dn\u00ed plochu, hygienu a spr\u00e1vn\u00fd provoz. \u010c\u00edseln\u00e9 ozna\u010den\u00ed filtru v mikrometrech nav\u00edc nemus\u00ed b\u00fdt u r\u016fzn\u00fdch v\u00fdrobc\u016f p\u0159\u00edmo srovnateln\u00e9. Z\u00e1le\u017e\u00ed na tom, zda jde o nomin\u00e1ln\u00ed, nebo absolutn\u00ed hodnocen\u00ed, i na konstrukci samotn\u00e9ho m\u00e9dia.<\/p>\n

Steriln\u00ed nebo mikrobiologicky stabiliza\u010dn\u00ed filtrace<\/strong> p\u0159edstavuje jin\u00fd technologick\u00fd c\u00edl ne\u017e b\u011b\u017en\u00e9 odstran\u011bn\u00ed viditeln\u00e9ho z\u00e1kalu. V odborn\u00e9 praxi se nap\u0159\u00edklad pou\u017e\u00edvaj\u00ed velmi jemn\u00e9 membr\u00e1ny kolem 0,45 \u00b5m, ale samotn\u00e1 hodnota nezaru\u010duje steriln\u00ed ani dlouhodob\u011b trvanliv\u00e9 pivo. V\u00fdsledek z\u00e1vis\u00ed tak\u00e9 na p\u0159edfiltraci, integrit\u011b membr\u00e1ny, sanitaci, plnic\u00edm za\u0159\u00edzen\u00ed a hygien\u011b obal\u016f.<\/p>\n

Filtra\u010dn\u00ed materi\u00e1ly a za\u0159\u00edzen\u00ed<\/h2>\n

Klasick\u00e1 p\u0159edn\u00e1t\u011brov\u00e1 filtrace<\/a><\/strong> pracuje s vrstvou filtra\u010dn\u00ed pom\u016fcky, nap\u0159\u00edklad k\u0159emeliny, perlitu nebo celul\u00f3zov\u00e9ho materi\u00e1lu. \u010c\u00e1stice se zachycuj\u00ed uvnit\u0159 struktury t\u00e9to vrstvy. K\u0159emelina m\u016f\u017ee b\u00fdt technologicky \u00fa\u010dinn\u00e1, p\u0159in\u00e1\u0161\u00ed v\u0161ak n\u00e1roky na manipulaci s odpadem, bezpe\u010dnost pr\u00e1ce a likvidaci pou\u017eit\u00e9ho materi\u00e1lu.<\/p>\n

U hloubkov\u00fdch filtr\u016f bez k\u0159emeliny proch\u00e1z\u00ed pivo deskov\u00fdm nebo sv\u00ed\u010dkov\u00fdm filtra\u010dn\u00edm m\u00e9diem. \u010c\u00e1stice se zachycuj\u00ed uvnit\u0159 jeho por\u00e9zn\u00ed struktury. Pro men\u0161\u00ed provozy m\u016f\u017ee j\u00edt o prakti\u010dt\u011bj\u0161\u00ed \u0159e\u0161en\u00ed ne\u017e klasick\u00e1 k\u0159emelinov\u00e1 filtrace, st\u00e1le v\u0161ak vy\u017eaduje vhodnou filtra\u010dn\u00ed plochu a sanitovan\u00e9 p\u0159ipojen\u00ed.<\/p>\n

Povrchov\u00e9 a membr\u00e1nov\u00e9 filtry zadr\u017euj\u00ed \u010d\u00e1stice p\u0159edev\u0161\u00edm na definovan\u00e9 filtra\u010dn\u00ed p\u0159ep\u00e1\u017ece. Cross-flow neboli tangenci\u00e1ln\u00ed filtrace vede pivo pod\u00e9l povrchu membr\u00e1ny a filtr\u00e1t proch\u00e1z\u00ed nap\u0159\u00ed\u010d membr\u00e1nou. T\u00edm se omezuje tvorba souvisl\u00e9ho filtra\u010dn\u00edho kol\u00e1\u010de. Jde v\u0161ak o za\u0159\u00edzen\u00ed n\u00e1ro\u010dn\u011bj\u0161\u00ed na \u0159\u00edzen\u00ed pr\u016ftoku<\/a>, tlak\u016f, \u010di\u0161t\u011bn\u00ed a regeneraci. Dom\u00e1c\u00ed pivovarn\u00edk je obvykle nepot\u0159ebuje.<\/p>\n

B\u011b\u017en\u00fd vodn\u00ed filtr nelze automaticky pova\u017eovat za vhodn\u00fd pro pivo. Nemus\u00ed m\u00edt spr\u00e1vnou konstrukci, odpov\u00eddaj\u00edc\u00ed kapacitu, vhodn\u00e9 materi\u00e1ly ve styku s pivem ani odolnost v\u016f\u010di pou\u017e\u00edvan\u00fdm sanita\u010dn\u00edm prost\u0159edk\u016fm.<\/p>\n

Vliv na \u010dirost, chu\u0165 a stabilitu<\/h2>\n

Nejviditeln\u011bj\u0161\u00edm v\u00fdsledkem filtrace je vy\u0161\u0161\u00ed \u010dirost a men\u0161\u00ed mno\u017estv\u00ed sedimentu. Sou\u010dasn\u011b se odstran\u00ed \u010d\u00e1st kvasnic, podle jemnosti a skute\u010dn\u00e9 reten\u010dn\u00ed schopnosti filtru p\u0159\u00edpadn\u011b jejich v\u011bt\u0161ina. Filtrovan\u00e9 pivo proto nemus\u00ed b\u00fdt vhodn\u00e9 pro n\u00e1sledn\u00e9 dokva\u0161ov\u00e1n\u00ed v lahvi.<\/p>\n

Filtrace sama neur\u010duje zp\u016fsob sycen\u00ed. Pivo m\u016f\u017ee z\u00edskat oxid uhli\u010dit\u00fd p\u0159irozen\u011b p\u0159i dokva\u0161ov\u00e1n\u00ed a zr\u00e1n\u00ed v uzav\u0159en\u00e9 n\u00e1dob\u011b pod p\u0159etlakem<\/a>, refermentac\u00ed v lahvi s p\u0159\u00eddavkem cukru, nebo nucen\u00fdm sycen\u00edm z tlakov\u00e9 n\u00e1doby. Po jemn\u00e9 filtraci v\u0161ak nelze bez dal\u0161\u00edho p\u0159edpokl\u00e1dat spolehlivou refermentaci, proto\u017ee ve v\u00edn\u011b? kvasnice jsou \u010d\u00e1ste\u010dn\u011b odstran\u011bny. [Need fix typo]
\nVliv filtrace na chu\u0165, v\u016fni, t\u011blo a p\u011bnu nelze popsat jednou univerz\u00e1ln\u00ed v\u011btou. Z\u00e1le\u017e\u00ed na typu filtru, jemnosti filtrace, filtra\u010dn\u00edm m\u00e9diu, d\u00e9lce kontaktu i vlastnostech konkr\u00e9tn\u00edho piva. Filtrace m\u016f\u017ee zachovat v\u011bt\u0161inu rozpu\u0161t\u011bn\u00fdch chu\u0165ov\u00fdch l\u00e1tek, ale m\u016f\u017ee tak\u00e9 odstranit \u010d\u00e1st koloidn\u00edch nebo b\u00edlkovinn\u00fdch slo\u017eek. Rozsah zm\u011bny proto mus\u00ed posuzovat konkr\u00e9tn\u00ed technologie a styl piva. Neplat\u00ed ani to, \u017ee ka\u017ed\u00e1 filtrace pivo zhor\u0161uje, ani \u017ee je v\u017edy senzoricky neutr\u00e1ln\u00ed.<\/p>\n

Kdy filtraci vynechat<\/h2>\n

Dom\u00e1c\u00ed pivovarn\u00edk filtraci obvykle nepot\u0159ebuje, pokud mu jde o \u010dist\u00e9 a stabiln\u00ed pivo pro vlastn\u00ed spot\u0159ebu. Vhodn\u011bj\u0161\u00ed b\u00fdv\u00e1 spr\u00e1vn\u011b \u0159\u00edzen\u00e9 kva\u0161en\u00ed, dostate\u010dn\u011b dlouh\u00e9 zr\u00e1n\u00ed, ochlazen\u00ed a opatrn\u00e9 sto\u010den\u00ed bez rozv\u00ed\u0159en\u00ed kvasnicov\u00e9ho sedimentu. U n\u011bkter\u00fdch styl\u016f je z\u00e1kal dokonce \u017e\u00e1douc\u00ed a jeho odstra\u0148ov\u00e1n\u00ed by zm\u011bnilo jejich charakter.<\/p>\n

Filtraci m\u00e1 smysl zv\u00e1\u017eit tehdy, kdy\u017e je po\u017eadov\u00e1na rychl\u00e1 vizu\u00e1ln\u00ed \u010dirost, pivo se st\u00e1\u010d\u00ed do sudu a za\u0159\u00edzen\u00ed umo\u017e\u0148uje uzav\u0159en\u00fd p\u0159evod s minim\u00e1ln\u00edm kontaktem se vzduchem. U siln\u011b zakalen\u00e9ho piva v\u0161ak jednoduch\u00fd filtr \u010dasto znamen\u00e1 rychl\u00e9 ucp\u00e1n\u00ed, ztr\u00e1ty piva a slo\u017eit\u011bj\u0161\u00ed manipulaci.<\/p>\n

Praktick\u00e9 tipy pro dom\u00e1c\u00ed pivovarn\u00edky<\/h2>\n