Nguy\u00ean t\u1eafc chung khi s\u1ea5y kh\u00f4 rau qu\u1ea3<\/strong><\/p>\nS\u1ea5y l\u00e0 bi\u1ec7n ph\u00e1p l\u00e0m cho m\u1ed9t l\u01b0\u1ee3ng n\u01b0\u1edbc trong rau qu\u1ea3 bay h\u01a1i \u0111\u1ec3 l\u00e0m gi\u1ea3m nh\u1eb9 tr\u1ecdng l\u01b0\u1ee3ng rau qu\u1ea3. Nh\u01b0ng trong ph\u01a1i s\u1ea5y, m\u1ed9t l\u01b0\u1ee3ng l\u1edbn vitamin C b\u1ecb ph\u00e1 h\u1ee7y, t\u00f9y t\u1eebng lo\u1ea1i qu\u1ea3 v\u00e0 t\u00f9y t\u1eebng ph\u01b0\u01a1ng ph\u00e1p s\u1ea5y m\u00e0 t\u1ed5n th\u1ea5t vitaminC c\u00f3 th\u1ec3 l\u00ean t\u1edbi 90%.<\/p>\n
C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p: S\u1ea5y l\u1ea1nh (s\u1ea5y th\u0103ng hoa) v\u00e0 s\u1ea5y n\u00f3ng.<\/p>\n
+ S\u1ea5y l\u1ea1nh<\/strong>: l\u00e0 l\u00e0m l\u1ea1nh \u0111\u00f4ng rau qu\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 \u2013 200C, n\u01b0\u1edbc trong rau qu\u1ea3 b\u1ecb \u0111\u00f3ng b\u0103ng th\u00e0nh n\u01b0\u1edbc \u0111\u00e1 \u1edf th\u1ec3 r\u1eafn, sau \u0111\u00f3 l\u00e0m cho n\u01b0\u1edbc t\u1eeb th\u1ec3 r\u1eafn chuy\u1ec3n sang th\u1ec3 h\u01a1i, b\u1ecb bay h\u01a1i kh\u00f4ng qua tr\u1ea1ng th\u00e1i l\u1ecfng. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y g\u1ecdi l\u00e0 s\u1ea5y th\u0103ng hoa.<\/p>\n+ S\u1ea5y n\u00f3ng<\/strong>: d\u00f9ng kh\u00f4ng kh\u00ed n\u00f3ng \u0111\u1ec3 l\u00e0m kh\u00f4 rau qu\u1ea3. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh khu\u1ebfch t\u00e1n n\u01b0\u1edbc t\u1eeb c\u00e1c l\u1edbp b\u00ean ngo\u00e0i ra b\u1ec1 m\u1eb7t, v\u00e0 n\u01b0\u1edbc t\u1eeb b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m b\u1ed1c h\u01a1i ra m\u00f4i tr\u01b0\u1eddng xung quanh. Trong c\u00f4ng nghi\u1ec7p th\u01b0\u1eddng s\u1ea5y rau qu\u1ea3 b\u1eb1ng l\u00f2 s\u1ea5y \u0111\u01b0\u1eddng h\u1ea7m. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 \u01b0u vi\u1ec7t gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c s\u1ea3n l\u01b0\u1ee3ng l\u1edbn v\u1edbi qu\u1ea1t gi\u00f3 c\u01b0\u1ee1ng b\u1ee9c, l\u00e0m t\u1ed1c \u0111\u1ed9 bay h\u01a1i nhanh, nhi\u1ec7t \u0111\u1ed9 \u0111\u00fang y\u00eau c\u1ea7u. \u0110\u1ed1i v\u1edbi gia \u0111\u00ecnh ch\u1ec9 c\u00f3 th\u1ec3 d\u00f9ng t\u1ee7 s\u1ea5y, l\u00f2 s\u1ea5y th\u1ee7 c\u00f4ng ho\u1eb7c ph\u01a1i n\u1eafng. Ph\u01a1i n\u1eafng c\u01a1 \u01b0u \u0111i\u1ec3m ti\u1ebft ki\u1ec7m ch\u1ea5t \u0111\u1ed1t, t\u1eadn d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, nh\u01b0ng l\u00e0m gi\u1ea3m t\u1edbi 80% vitamin C v\u00e0 caroten, th\u1eddi gian l\u00e0m kh\u00f4 k\u00e9o d\u00e0i, ph\u1ea9m ch\u1ea5t m\u1ea7u k\u00e9m h\u01a1n, g\u1eb7p tr\u1eddi m\u01b0a s\u1ea3n ph\u1ea9m d\u1ec5 b\u1ecb m\u1ed1c. Ngo\u00e0i ra ph\u01a1i n\u1eafng c\u00f2n \u0111\u00f2i h\u1ecfi nhi\u1ec1u di\u1ec7n t\u00edch, kh\u00f3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c s\u1ea3n l\u01b0\u1ee3ng l\u1edbn. V\u1ec1 m\u00f9a c\u1ee7 c\u1ea3i, th\u1eddi ti\u1ebft hanh kh\u00f4 c\u00f3 th\u1ec3 ph\u01a1i nhi\u1ec1u \u0111\u01b0\u1ee3c.<\/p>\n![\"\"](\"https:\/\/hoaquasay.vn\/wp-content\/uploads\/2017\/04\/han-che-1.jpg\")
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![\"\"](\"http:\/\/hucafood.com\/wp-content\/uploads\/2017\/08\/trai-cay-say-hucafood-mitsay-1.jpg\" "\\"Quy")
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M\u00edt s\u1ea5y – S\u1ea3n ph\u1ea9m m\u1edbi c\u1ee7a Hucafood<\/span><\/p>\n1. Ch\u1ea7n (h\u1ea5p)<\/strong><\/p>\nTr\u01b0\u1edbc khi s\u1ea5y th\u01b0\u1eddng ch\u1ea7n rau qu\u1ea3 trong n\u01b0\u1edbc n\u00f3ng ho\u1eb7c h\u1ea5p b\u1eb1ng h\u01a1i n\u01b0\u1edbc nh\u1eb1m b\u1ea3o v\u1ec7 ph\u1ea9m ch\u1ea5t s\u1ea3n ph\u1ea9m v\u00e0 r\u00fat ng\u1eafn th\u1eddi gian s\u1ea5y. Khi ch\u1ea7n, do t\u00e1c d\u1ee5ng c\u1ee7a nhi\u1ec7t v\u00e0 \u1ea9m n\u00ean t\u00ednh ch\u1ea5t ho\u00e1 l\u00fd c\u1ee7a nguy\u00ean li\u1ec7u b\u1ecb bi\u1ebfn \u0111\u1ed5i c\u00f3 l\u1ee3i cho s\u1ef1 tho\u00e1t \u1ea9m khi s\u1ea5y: c\u00e1c vi sinh v\u1eadt b\u1ecb ti\u00eau di\u1ec7t v\u00e0 h\u1ec7 th\u1ed1ng men (enzim) trong nguy\u00ean li\u1ec7u b\u1ecb \u0111\u00ecnh ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng (v\u00f4 ho\u1ea1t ho\u00e1) tr\u00e1nh g\u00e2y h\u01b0 h\u1ecfng s\u1ea3n ph\u1ea9m.<\/p>\n
Trong rau qu\u1ea3 c\u00f3 nhi\u1ec1u lo\u1ea1i men, lo\u1ea1i men b\u1ec1n nhi\u1ec7t nh\u1ea5t l\u00e0 lo\u1ea1i men Peroxidaza. V\u00f4 ho\u1ea1t ( l\u00e0m \u0111\u00ecnh ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng) \u0111\u01b0\u1ee3c men n\u00e0y th\u00ec v\u00f4 ho\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c men kh\u00e1c. \u0110\u1ec3 v\u00f4 ho\u1ea1t \u0111\u01b0\u1ee3c men Peroxidaza c\u1ea7n gia nhi\u1ec7t rau qu\u1ea3 \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 750C. \u0110\u1ed1i v\u1edbi rau qu\u1ea3 gi\u00e0u gluxit (khoai t\u00e2y\u2026): ch\u1ea7n l\u00e0m cho rau qu\u1ea3 t\u0103ng \u0111\u1ed9 x\u1ed1p, do s\u1ef1 thu\u1ef7 ph\u00e2n c\u00e1c ch\u1ea5t pectin l\u00e0m cho li\u00ean k\u1ebft gi\u1eefa c\u00e1c m\u00e0ng t\u1ebf b\u00e0o b\u1ecb ph\u00e1 v\u1ee1.<\/p>\n
Tinh b\u1ed9t b\u1ecb h\u1ed3 ho\u00e1 khi ch\u1ea7n c\u0169ng l\u00e0m t\u0103ng nhanh qu\u00e1 tr\u00ecnh s\u1ea5y. \u0110\u1ed1i v\u1edbi rau qu\u1ea3 c\u00f3 ch\u1ee9a s\u1eafc t\u1ed1 (c\u00e0 r\u1ed1t, \u0111\u1eadu ho\u00e0 lan, m\u1eadn\u2026), ch\u1ea7n c\u00f3 t\u00e1c d\u1ee5ng gi\u1eef m\u00e0u, h\u1ea1n ch\u1ebf \u0111\u01b0\u1ee3c hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn m\u00e0u ho\u1eb7c b\u1ea1c m\u00e0u.<\/p>\n
\u0110\u1ed1i v\u1edbi rau qu\u1ea3 c\u00f3 l\u1edbp s\u00e1p m\u1ecfng tr\u00ean b\u1ec1 m\u1eb7t (m\u1eadn, v\u1ea3i\u2026), ch\u1ea7n l\u00e0m m\u1ea5t l\u1edbp s\u00e1p n\u00e0y, t\u1ea1o ra c\u00e1c v\u1ebft n\u1ee9c nh\u1ecf li ti tr\u00ean b\u1ec1 m\u1eb7t, do \u0111\u00f3 gia t\u0103ng qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i \u1ea9m gi\u1eefa qu\u1ea3 v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh, d\u1eabn \u0111\u1ebfn r\u00fat ng\u1eafn th\u1eddi gian s\u1ea5y.<\/p>\n
2. X\u1eed l\u00fd ho\u00e1 ch\u1ea5t<\/strong><\/p>\n\u0110\u1ec3 ng\u0103n ng\u1eeba qu\u00e1 tr\u00ecnh \u00f4xy ho\u00e1 trong qu\u00e1 tr\u00ecnh s\u1ea5y, ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t ch\u1ed1ng \u00f4xy ho\u00e1 nh\u01b0 Axit sunfur\u01a1, axit ascobic, axit xiric v\u00e0 c\u00e1c mu\u1ed1i natri c\u1ee7a axit sunfur\u01a1 (nh\u01b0 metabunsunfit, bisunfit, sunfit\u2026).<\/p>\n
Axit xitric c\u00f3 t\u00e1c d\u1ee5ng k\u00ecm h\u00e3m bi\u1ebfn m\u00e0u kh\u00f4ng do men. Axit sunfur\u01a1 v\u00e0 c\u00e1c mu\u1ed1i natri c\u1ee7a n\u00f3 c\u00f3 t\u00ednh kh\u1eed m\u1ea1nh, t\u00e1c d\u1ee5ng v\u1edbi nh\u00f3m ho\u1ea1t \u0111\u1ed9ng c\u1ee7a men oxy ho\u00e1 v\u00e0 l\u00e0m ch\u1eadm c\u00e1c ph\u1ea3n \u1ee9ng s\u1ea9m m\u00e0u c\u00f3 ngu\u1ed3n g\u1ed1c men. Ngo\u00e0i ra, ch\u00fang c\u00f2n c\u00f3 t\u00e1c d\u1ee5ng ng\u0103n ng\u1eeba s\u1ef1 t\u1ea1o th\u00e0nh melanoidin (ch\u1ea5t g\u00e2y hi\u1ec7n t\u01b0\u1ee3ng s\u1ea9m m\u00e0u) v\u00e0 \u1ed5n \u0111\u1ecbnh vitamin C, l\u00e0m cho vitamin C kh\u00f4ng b\u1ecb ti\u00eau ho\u00e1. H\u00e0m l\u01b0\u1ee3ng t\u1ed1i thi\u1ec3u c\u1ee7a SO2 \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng oxi ho\u00e1 l\u00e0 0,02% (t\u00ednh theo kh\u1ed1i l\u01b0\u1ee3ng).<\/p>\n
3. Nhi\u1ec7t \u0111\u1ed9 s\u1ea5y<\/strong><\/p>\nRau qu\u1ea3 l\u00e0 s\u1ea3n ph\u1ea9m ch\u1ecbu nhi\u1ec7t k\u00e9m: tr\u00ean 900C th\u00ec \u0111\u01b0\u1eddng fructose b\u1eaft \u0111\u1ea7u b\u1ecb caramen ho\u00e1, c\u00e1c ph\u1ea3n \u1ee9ng t\u1ea1o ra melanoidin, polime ho\u00e1 c\u00e1c h\u1ee3p ch\u1ea5t cao ph\u00e2n t\u1eed x\u1ea3y ra m\u1ea1nh. C\u00f2n \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n n\u1eefa, rau qu\u1ea3 c\u00f3 th\u1ec3 b\u1ecb ch\u00e1y. Do v\u1eady, \u0111\u1ec3 s\u1ea5y rau qu\u1ea3 th\u01b0\u1eddng d\u00f9ng ch\u1ebf \u0111\u1ed9 s\u1ea5y \u00f4n ho\u00e0. Tu\u1ef3 theo lo\u1ea1i nguy\u00ean li\u1ec7u, nhi\u1ec7t \u0111\u1ed9 s\u1ea5y kh\u00f4ng qu\u00e1 80 \u2013 900C. \u0110\u1ed1i v\u1edbi rau qu\u1ea3 kh\u00f4ng ch\u1ea7n, \u0111\u1ec3 di\u1ec7t men th\u00ec khi s\u1ea5y ban \u0111\u1ea7u c\u00f3 th\u1ec3 \u0111\u01b0a l\u00ean 1000C, sau m\u1ed9t v\u00e0i gi\u1edd h\u1ea1 xu\u1ed1ng nhi\u1ec7t \u0111\u1ed9 th\u00edch h\u1ee3p.<\/p>\n
Qu\u00e1 tr\u00ecnh s\u1ea5y c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed1c \u0111\u1ed9 t\u0103ng nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u s\u1ea5y. N\u1ebfu t\u1ed1c \u0111\u1ed9 t\u0103ng nhi\u1ec7t qu\u00e1 nhanh th\u00ec b\u1ec1 m\u1eb7t qu\u1ea3 b\u1ecb r\u1eafn l\u1ea1i v\u00e0 ng\u0103n qu\u00e1 tr\u00ecnh tho\u00e1t \u1ea9m. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu t\u1ed1c \u0111\u1ed9 t\u0103ng ch\u1eadm th\u00ec c\u01b0\u1eddng \u0111\u1ed9 tho\u00e1t \u1ea9m y\u1ebfu.<\/p>\n
4. \u0110\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed<\/strong><\/p>\nMu\u1ed1n n\u00e2ng cao kh\u1ea3 n\u0103ng h\u00fat \u1ea9m c\u1ee7a kh\u00f4ng kh\u00ed th\u00ec ph\u1ea3i gi\u1ea3m \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a n\u00f3 xu\u1ed1ng. S\u1ea5y ch\u00ednh l\u00e0 bi\u1ec7n ph\u00e1p t\u0103ng kh\u1ea3 n\u0103ng h\u00fat \u1ea9m c\u1ee7a kh\u00f4ng kh\u00ed b\u1eb1ng c\u00e1ch t\u0103ng nhi\u1ec7t \u0111\u1ed9.<\/p>\n
Th\u00f4ng th\u01b0\u1eddng khi v\u00e0o l\u00f2 s\u1ea5y, kh\u00f4ng kh\u00ed c\u00f3 \u0111\u1ed9 \u1ea9m 10 \u2013 13%. N\u1ebfu \u0111\u1ed9 \u1ea9m c\u1ee7a kh\u00f4ng kh\u00ed qu\u00e1 th\u1ea5p s\u1ebd l\u00e0m rau qu\u1ea3 n\u1ee9c ho\u1eb7c t\u1ea1o ra l\u1edbp v\u1ecf kh\u00f4 tr\u00ean b\u1ec1 m\u1eb7t, l\u00e0m \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn qu\u00e1 tr\u00ecnh tho\u00e1t h\u01a1i \u1ea9m ti\u1ebfp theo. Nh\u01b0ng n\u1ebfu \u0111\u1ed9 \u1ea9m qu\u00e1 cao s\u1ebd l\u00e0m t\u1ed1c \u0111\u1ed9 s\u1ea5y gi\u1ea3m.<\/p>\n
Khi ra kh\u1ecfi l\u00f2 s\u1ea5y, kh\u00f4ng kh\u00ed mang theo h\u01a1i \u1ea9m c\u1ee7a rau qu\u1ea3 t\u01b0\u01a1i n\u00ean \u0111\u1ed9 \u1ea9m t\u0103ng l\u00ean (th\u00f4ng th\u01b0\u1eddng kho\u1ea3n 40 \u2013 60%). N\u1ebfu kh\u00f4ng kh\u00ed \u0111i ra c\u00f3 \u0111\u1ed9 \u1ea9m qu\u00e1 th\u1ea5p th\u00ec s\u1ebd t\u1ed1n n\u0103ng l\u01b0\u1ee3ng; ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu qu\u00e1 cao s\u1ebd d\u1ec3 b\u1ecb \u0111\u1ecdng s\u01b0\u01a1ng, l\u00e0m h\u01b0 h\u1ecfng s\u1ea3n ph\u1ea9m s\u1ea5y. Ng\u01b0\u1eddi ta \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m c\u1ee7a kh\u00f4ng kh\u00ed ra b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 l\u01b0u th\u00f4ng c\u1ee7a n\u00f3 v\u00e0 l\u01b0\u1ee3ng rau qu\u1ea3 t\u01b0\u01a1i ch\u1ee9a trong l\u00f2 s\u1ea5y.<\/p>\n
5. L\u01b0u th\u00f4ng c\u1ee7a kh\u00f4ng kh\u00ed<\/strong><\/p>\nTrong qu\u00e1 tr\u00ecnh s\u1ea5y, kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 l\u01b0u th\u00f4ng t\u1ef1 nhi\u00ean ho\u1eb7c c\u01b0\u1ee1ng b\u1ee9c. Trong c\u00e1c l\u00f2 s\u1ea5y, kh\u00f4ng kh\u00ed l\u01b0u th\u00f4ng t\u1ef1 nhi\u00ean v\u1edbi t\u1ed1c \u0111\u1ed9 nh\u1ecf (nh\u1ecf h\u01a1n 0,4m\/s), do v\u1eady th\u1eddi gian s\u1ea5y th\u01b0\u1eddng k\u00e9o d\u00e0i, l\u00e0m ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m s\u1ea5y kh\u00f4ng cao. \u0110\u1ec3 kh\u1eafc ph\u1ee5c nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y, ng\u01b0\u1eddi ta ph\u1ea3i d\u00f9ng qu\u1ea1t \u0111\u1ec3 th\u00f4ng gi\u00f3 c\u01b0\u1ee1ng b\u1ee9c v\u1edbi t\u1ed1c \u0111\u1ed9 trong kho\u1ea3ng 0,4 \u2013 4,0m\/s trong c\u00e1c thi\u1ebft b\u1ecb s\u1ea5y. N\u1ebfu t\u1ed1c \u0111\u1ed9 gi\u00f3 qu\u00e1 l\u1edbn (tr\u00ean 4,0m\/s) s\u1ebd g\u00e2y t\u1ed5n th\u1ea5t nhi\u1ec7t l\u01b0\u1ee3ng.<\/p>\n
6. \u0110\u1ed9 d\u00e0y c\u1ee7a l\u1edbp s\u1ea5y<\/strong><\/p>\n\u0110\u1ed9 d\u00e0y c\u1ee7a l\u1edbp rau qu\u1ea3 s\u1ea5y c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh s\u1ea5y. L\u1edbp nguy\u00ean li\u1ec7u c\u00e0ng m\u1ecfng th\u00ec qu\u00e1 tr\u00ecnh s\u1ea5y c\u00e0ng nhanh v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u, nh\u01b0ng n\u1ebfu qu\u00e1 m\u1ecfng s\u1ebd l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t c\u1ee7a l\u00f2 s\u1ea5y. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu qu\u00e1 d\u00e0y th\u00ec s\u1ebd l\u00e0m gi\u1ea3m s\u1ef1 l\u01b0u th\u00f4ng c\u1ee7a kh\u00f4ng kh\u00ed, d\u1ea9n \u0111\u1ebfn s\u1ea3n ph\u1ea9m b\u1ecb \u201c\u0111\u1ed5 m\u1ed3 h\u00f4i\u201d do h\u01a1i \u1ea9m \u0111\u1ecdng l\u1ea1i.<\/p>\n
Th\u00f4ng th\u01b0\u1eddng n\u00ean x\u1ebfp l\u1edbp hoa qu\u1ea3 tr\u00ean c\u00e1c khay s\u1ea5y v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng 5 \u2013 8kg\/m2 l\u00e0 ph\u00f9 h\u1ee3p.<\/p>\n
7. \u0110\u00f3ng g\u00f3i v\u00e0 b\u1ea3o qu\u1ea3n rau qu\u1ea3 kh\u00f4<\/strong><\/p>\nSau khi s\u1ea5y xong, c\u1ea7n ti\u1ebfn h\u00e0nh ph\u00e2n lo\u1ea1i \u0111\u1ec3 lo\u1ea1i b\u1ecf nh\u1eefng c\u00e1 th\u1ec3 kh\u00f4ng \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng (do ch\u00e1y ho\u1eb7c ch\u01b0a \u0111\u1ea1t \u0111\u1ed9 \u1ea9m y\u00eau c\u1ea7u). Lo\u1ea1i kh\u00f4 t\u1ed1t \u0111\u01b0\u1ee3c \u0111\u1ed5 chung v\u00e0o khay ho\u1eb7c ch\u1eadu l\u1edbn \u0111\u1ec3 \u0111i\u1ec1u ho\u00e0 \u0111\u1ed9 \u1ea9m. Sau \u0111\u00f3 qu\u1ea1t cho ngu\u1ed9i h\u1eb3n r\u1ed3i m\u1edbi \u0111\u00f3ng g\u00f3i \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed5 m\u1ed3 h\u00f4i.<\/p>\n
Tu\u1ef3 t\u1eebng m\u1eb7t h\u00e0ng, th\u1eddi gian b\u1ea3o qu\u1ea3n v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng s\u1eed d\u1ee5ng m\u00e0 c\u00f3 quy c\u00e1ch \u0111\u00f3ng g\u00f3i kh\u00e1c nhau. Ngo\u00e0i ra, \u0111i\u1ec1u ki\u1ec7n v\u1eadn chuy\u1ec3n v\u00e0 b\u1ea3o qu\u1ea3n s\u1ea3n ph\u1ea9m c\u0169ng c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng trong vi\u1ec7c l\u1ef1a ch\u1ecdn bao b\u00ec.<\/p>\n
D\u1ea1ng v\u1eadt li\u1ec7u th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 rau qu\u1ea3 kh\u00f4 l\u00e0 gi\u1ea5y c\u00e1c-t\u00f4ng v\u00e0 ch\u1ea5t d\u1ebbo (PE, PVC, xenlophan\u2026). Bao gi\u1ea5y v\u00e0 h\u1ed9p c\u00e1c-t\u00f4ng c\u00f3 \u0111\u1eb7c t\u00ednh nh\u1eb9, r\u1ebb, c\u00f3 th\u1ec3 t\u00e1i sinh, nh\u01b0ng th\u1ea5m h\u01a1i th\u1ea5m kh\u00ed, kh\u00f4ng \u0111\u1ec1u d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a n\u01b0\u1edbc v\u00e0 c\u01a1 h\u1ecdc. Bao t\u00fai ch\u1ea5t d\u1ebbo c\u00f3 \u0111\u1eb7c t\u00ednh trong su\u1ed1t, \u0111\u00e0n h\u1ed3i, d\u1ec3 d\u00e0ng k\u00edn b\u1eb1ng nhi\u1ec7t, chi ph\u00ed th\u1ea5p nh\u01b0ng c\u00f3 m\u1ed9t s\u1ed1 b\u1ecb th\u1ea5m n\u01b0\u1edbc. Th\u1ea5m kh\u00ed (PE), ch\u1ecbu nh\u1ec7t k\u00e9m (PVC,PET).<\/p>\n
Bao t\u00fai ch\u1ea5t d\u1ebbo d\u00f9ng \u0111\u1ec3 b\u1ea3o qu\u1ea3n hoa qu\u1ea3 kh\u00f4 c\u00f3 th\u1ec3 ch\u1ec9 g\u1ed3m m\u1ed9t m\u00e0ng ch\u1ea5t d\u1ebbo ho\u1eb7c k\u1ebft h\u1ee3p nhi\u1ec1u m\u00e0ng. Ngo\u00e0i ra, c\u00f2n c\u00f3 th\u1ec3 b\u1ea3o qu\u1ea3n rau, qu\u1ea3 kh\u00f4 trong chum, v\u1ea1i hay th\u00f9ng kim lo\u1ea1i \u0111\u1eady k\u00edn.<\/p>\n
8. Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m kh\u00f4<\/strong><\/p>\nPh\u01b0\u01a1ng ph\u00e1p l\u00e0m kh\u00f4 \u0111\u01a1n gi\u1ea3n nh\u1ea5t l\u00e0 ph\u01a1i n\u1eafng, c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 t\u1eadn d\u1ee5ng \u0111\u01b0\u1ee3c n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, ti\u1ebft ki\u1ec7m ch\u1ea5t \u0111\u1ed1t; nh\u01b0ng th\u1eddi gian l\u00e0m kh\u00f4 k\u00e9o d\u00e0i, l\u00e0m gi\u1ea3m nhi\u1ec1u vitamin C (\u0111\u1ebfn 80%) v\u00e0 caroten (ti\u1ec1n sinh t\u1ed1 A), m\u00e0u s\u1eafc s\u1ea3n ph\u1ea9m k\u00e9m, \u0111\u00f2i h\u1ecfi nhi\u1ec1u di\u1ec7n t\u00edch s\u00e2n ph\u01a1i, kh\u00f3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o th\u1eddi ti\u1ebft.<\/p>\n
\u0110\u1ec3 ch\u1ee7 \u0111\u1ed9ng vi\u1ec7c l\u00e0m kh\u00f4 ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb s\u1ea5y. S\u1ea5y l\u00e0 qu\u00e1 tr\u00ecnh t\u00e1ch n\u01b0\u1edbc trong s\u1ea3n ph\u1ea9m b\u1eb1ng nhi\u1ec7t. \u0110\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh khu\u1ebfch t\u00e1n n\u01b0\u1edbc t\u1eeb c\u00e1c l\u1edbp b\u00ean trong ra b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m v\u00e0 h\u01a1i n\u01b0\u1edbc t\u1eeb b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m khu\u1ebfch t\u00e1n ra m\u00f4i tr\u01b0\u1eddng xung quanh.<\/p>\n
C\u00e1c thi\u1ebft b\u1ecb s\u1ea5y th\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng kh\u00ed n\u00f3ng l\u00e0m t\u00e1c nh\u00e2n s\u1ea5y, bao g\u1ed3m: c\u00e1c t\u1ee7 s\u1ea5y, l\u00f2 s\u1ea5y th\u1ee7 c\u00f4ng ho\u1eb7c c\u00e1c m\u00e1y s\u1ea5y c\u00f3 b\u1ed9 ph\u1eadn c\u1ea5p nhi\u1ec7t v\u00e0 qu\u1ea1t gi\u00f3. Ngo\u00e0i ra, c\u00f2n c\u00f3 ph\u01b0\u01a1ng ph\u00e1p s\u1ea5y kh\u00e1c nh\u01b0 s\u1ea5y th\u0103ng hoa, s\u1ea5y h\u1ed3ng ngo\u1ea1i\u2026<\/p>\n
![\"\"](\"http:\/\/hucafood.com\/wp-content\/uploads\/2017\/08\/trai-cay-say-hucafood-mit-say-zipper.jpg\")
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M\u00edt s\u1ea5y – S\u1ea3n ph\u1ea9m m\u1edbi c\u1ee7a Hucafood<\/a><\/span><\/p>\nhttps:\/\/hoaquasay.vn\/<\/p>\n
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