{"id":679204,"date":"2024-10-31T16:03:05","date_gmt":"2024-10-31T15:03:05","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=679204"},"modified":"2024-10-31T16:03:05","modified_gmt":"2024-10-31T15:03:05","slug":"anh-huong-cua-truyen-nhiet-den-chat-luong-u-bia","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/anh-huong-cua-truyen-nhiet-den-chat-luong-u-bia\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia"},"content":{"rendered":"

\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia: T\u00ecm hi\u1ec3u c\u00e1ch truy\u1ec1n nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh l\u00ean men v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a bia th\u00e0nh ph\u1ea9m trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t bia.<\/p>\n

\"\u1ea2nh<\/p>\n

\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia<\/h2>\n

\u1ee6 bia l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p \u0111\u00f2i h\u1ecfi s\u1ef1 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 h\u01b0\u01a1ng v\u1ecb c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. Truy\u1ec1n nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong t\u1eebng giai \u0111o\u1ea1n c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng \u1ea3nh h\u01b0\u1edfng ch\u00ednh c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia.<\/p>\n

1. Giai \u0111o\u1ea1n n\u1ea5u malt<\/h2>\n

Trong giai \u0111o\u1ea1n n\u1ea5u malt, nhi\u1ec7t \u0111\u1ed9 c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c chuy\u1ec3n h\u00f3a c\u00e1c enzym v\u00e0 \u0111\u01b0\u1eddng trong malt. C\u00e1c ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 ch\u00ednh trong giai \u0111o\u1ea1n n\u00e0y bao g\u1ed3m:<\/p>\n

<\/p>\n

  • Kho\u1ea3ng 60-65\u00b0C: T\u1ed1i \u01b0u cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a enzym alfa-amylase, chuy\u1ec3n h\u00f3a tinh b\u1ed9t th\u00e0nh \u0111\u01b0\u1eddng dextrin.<\/li>\n
  • Kho\u1ea3ng 70-75\u00b0C: T\u1ed1i \u01b0u cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a enzym beta-amylase, chuy\u1ec3n h\u00f3a dextrin th\u00e0nh maltose.<\/li>\n

    <\/u1><\/p>\n

    S\u1ef1 \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u00fang ho\u1eb7c kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 chuy\u1ec3n h\u00f3a kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u01b0\u01a1ng v\u1ecb v\u00e0 \u0111\u1ed9 c\u1ed3n c\u1ee7a bia.<\/p>\n

    2. Giai \u0111o\u1ea1n \u0111un s\u00f4i<\/h2>\n

    Trong giai \u0111o\u1ea1n \u0111un s\u00f4i, m\u1ee5c ti\u00eau l\u00e0 ti\u00eau di\u1ec7t c\u00e1c vi khu\u1ea9n, l\u00e0m bay h\u01a1i c\u00e1c h\u1ee3p ch\u1ea5t kh\u00f4ng mong mu\u1ed1n v\u00e0 h\u00f2a tan c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu \u00edch nh\u01b0 axit alpha t\u1eeb hoa bia. \u0110i\u1ec1u n\u00e0y b\u1eaft bu\u1ed9c vi\u1ec7c truy\u1ec1n nhi\u1ec7t ph\u1ea3i \u0111\u1ee7 m\u1ea1nh v\u00e0 \u0111\u1ec1u:<\/p>\n

    <\/p>\n

  • Nhi\u1ec7t \u0111\u1ed9 \u0111un s\u00f4i kho\u1ea3ng 100\u00b0C l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 ti\u00eau di\u1ec7t vi khu\u1ea9n v\u00e0 c\u00e1c vi sinh v\u1eadt c\u00f3 h\u1ea1i.<\/li>\n
  • C\u1ea7n duy tr\u00ec m\u1ed9t th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh (th\u01b0\u1eddng l\u00e0 kho\u1ea3ng 60 ph\u00fat) \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 t\u1ed1i \u0111a.<\/li>\n

    <\/u1><\/p>\n

    3. Giai \u0111o\u1ea1n l\u00ean men<\/h2>\n

    Trong giai \u0111o\u1ea1n l\u00ean men, nhi\u1ec7t \u0111\u1ed9 \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh trong ho\u1ea1t \u0111\u1ed9ng c\u1ee7a men bia (yeast). C\u00e1c y\u1ebfu t\u1ed1 nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3 \u1ea3nh h\u01b0\u1edfng bao g\u1ed3m:<\/p>\n

    <\/p>\n

  • Kho\u1ea3ng 12-18\u00b0C: T\u1ed1i \u01b0u cho men bia lager, t\u1ea1o ra bia v\u1edbi h\u01b0\u01a1ng v\u1ecb s\u1ea1ch v\u00e0 thanh tho\u00e1t.<\/li>\n
  • Kho\u1ea3ng 18-22\u00b0C: T\u1ed1i \u01b0u cho men bia ale, t\u1ea1o ra bia v\u1edbi h\u01b0\u01a1ng v\u1ecb phong ph\u00fa v\u00e0 \u0111a d\u1ea1ng.<\/li>\n

    <\/u1><\/p>\n

    N\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao ho\u1eb7c qu\u00e1 th\u1ea5p, men bia c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng hi\u1ec7u qu\u1ea3 ho\u1eb7c s\u1ea3n sinh ra c\u00e1c h\u1ee3p ch\u1ea5t ph\u1ee5 kh\u00f4ng mong mu\u1ed1n, nh\u01b0 diacetyl ho\u1eb7c fusel alcohol, g\u00e2y ra m\u00f9i v\u1ecb kh\u00f3 ch\u1ecbu.<\/p>\n

    4. Giai \u0111o\u1ea1n \u1ee7 l\u1ea1nh (lagering)<\/h2>\n

    Qu\u00e1 tr\u00ecnh \u1ee7 l\u1ea1nh di\u1ec5n ra sau khi l\u00ean men ch\u00ednh v\u00e0 th\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 r\u1ea5t th\u1ea5p (kho\u1ea3ng 0-4\u00b0C). Giai \u0111o\u1ea1n n\u00e0y gi\u00fap:<\/p>\n

    <\/p>\n

  • L\u1eafng \u0111\u1ecdng c\u1eb7n b\u00e3 v\u00e0 tinh th\u1ec3 h\u00f3a ch\u1ea5t kh\u00f4ng mong mu\u1ed1n.<\/li>\n
  • Ph\u00e1t tri\u1ec3n h\u01b0\u01a1ng v\u1ecb v\u00e0 \u0111\u1ed9 trong su\u1ed1t c\u1ee7a bia.<\/li>\n

    <\/u1><\/p>\n

    S\u1ef1 ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng t\u1ed1t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u qu\u1ea3 c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y, d\u1eabn \u0111\u1ebfn bia b\u1ecb \u0111\u1ee5c v\u00e0 c\u00f3 h\u01b0\u01a1ng v\u1ecb k\u00e9m.<\/p>\n

    K\u1ebft lu\u1eadn<\/h2>\n

    Truy\u1ec1n nhi\u1ec7t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong qu\u00e1 tr\u00ecnh \u1ee7 bia, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn t\u1eebng giai \u0111o\u1ea1n v\u00e0 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn h\u01b0\u01a1ng v\u1ecb, ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a bia th\u00e0nh ph\u1ea9m. Vi\u1ec7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 m\u1ed9t c\u00e1ch ch\u1eb7t ch\u1ebd v\u00e0 ch\u00ednh x\u00e1c l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng t\u1eebng giai \u0111o\u1ea1n c\u1ee7a qu\u00e1 tr\u00ecnh \u1ee7 bia di\u1ec5n ra thu\u1eadn l\u1ee3i v\u00e0 mang l\u1ea1i k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia: T\u00ecm hi\u1ec3u c\u00e1ch truy\u1ec1n nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh l\u00ean men v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a bia th\u00e0nh ph\u1ea9m trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t bia.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia<\/title>\n<meta name=\"description\" content=\"\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia: T\u00ecm hi\u1ec3u c\u00e1ch truy\u1ec1n nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh l\u00ean men v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a bia th\u00e0nh ph\u1ea9m trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n xu\u1ea5t bia.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/vi\/anh-huong-cua-truyen-nhiet-den-chat-luong-u-bia\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia\" \/>\n<meta property=\"og:description\" content=\"\u1ea2nh h\u01b0\u1edfng c\u1ee7a truy\u1ec1n nhi\u1ec7t \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u1ee7 bia: T\u00ecm hi\u1ec3u c\u00e1ch truy\u1ec1n nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh l\u00ean men v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a bia th\u00e0nh ph\u1ea9m trong ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u1ea3n 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