hun khoi (tr)

8/2/2019 hun khoi (tr)

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Thit b hun khi Torry Kiln do th my

Kiln thit k, y l thit knn tng cho thit b hun khi cng nghip sau ny.Thit b ny giiquyt dc hai vn : hun khi trong thi gian ngn v c thhun khi vis lng ln. Thit b hun khiTorry Kiln c m t bng hai hnh

bndi, nguyn liu c gi trong mt khoang v sau cho khi di chuynquasn phm. C nhiu thit b cng nh c cu c thit k cho dngkhi di chuynng hng v sn phn hun khi t cht lng t.3 Quy trnh cng ngh hun khi c

Ct m ch dng cho loi c ln, c nh th sy nguyn con cho cht bo c trong

ni tng thm vo tht v bng, c khng b qu sy.-

Mui

: c hun khi khng c cha nhiu lng mui tha. mui ca bn thnhphm khong 8-


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10%. Tuy nhin bn thnh phm c mui nh vy phi hun khi ngay sau khimui hoc bo qun nhit khng qu 5o

C. Nu bn thnh phm cn chuyn i ni khc, bo qun trongcc iu kin lnhth mui cn 10-

12%. Sn xut cc sn phm hun khit c mui mn (mu

i cao hn 14%) khng c ng dng v nhn csn phm c cht lng khngcao.

-

Lm long

: lm long bng nc gim lng mui trong bnthnh phm n mt gii hn

nhm bo qun cht lng khi gia cng nhittip theo. mui ban u ca bnthnh phm cng thp vic lm longcng nhanh v sn phm nhn c c chtlng cng tt.

Hm lng ti u ca mui trong sn phm em lm long cn t 6-

8%. Lm long l qu trnh ngc li vi qu trnh mui. Khi lm long,nc xmnhp vo t bo c, cn mui b loi ra, do nng mui trongt bo gim i.

Trong thi gian lm long, xy ra s gim t t nng mui chatrong tht c, tb mt c n cc lp bn trong v mt phn cc hp chthu c trong tht c btntht.

S mt mt cc hp cht cha nit khong 3,5-

14% so hm lng banu trong c. Gi tr tn tht ph thuc cht lng nguynliu c, phngphp gia cng mui, cht lng bn thnh phm v cc hm lngmuitrong c. Ngoi ra khi lm long xy ra hin tng trng n tht c, lmtngkhi lng. Tng khi lng khi lm long c bo 2

-7%, c trung bnh 5

-

12% v c gy 7-8%


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.3 Quy trnh cng ngh hun khi c

Ct m ch dng cho loi c ln, c nh th sy nguyn con cho cht bo c trongni tng thm vo tht v bng, c khng b qu sy.-

Mui

: c hun khi khng c cha nhiu lng mui tha. mui ca bn thnhphm khong 8-

10%. Tuy nhin bn thnh phm c mui nh vy phi hun khi ngay sau khi

mui hoc bo qun nhit khng qu 5oC. Nu bn thnh phm cn chuyn i ni khc, bo qun trongcc iu kin lnhth mui cn 10-

12%. Sn xut cc sn phm hun khit c mui mn (mu


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i cao hn 14%) khng c ng dng v nhn csn phm c cht lng khngcao.

-

Lm long

: lm long bng nc gim lng mui trong bnthnh phm n mt gii hnnhm bo qun cht lng khi gia cng nhittip theo. mui ban u ca bnthnh phm cng thp vic lm longcng nhanh v sn phm nhn c c chtlng cng tt.

Hm lng ti u ca mui trong sn phm em lm long cn t 6-

8%. Lm long l qu trnh ngc li vi qu trnh mui. Khi lm long,nc xmnhp vo t bo c, cn mui b loi ra, do nng mui trongt bo gim i.

Trong thi gian lm long, xy ra s gim t t nng mui chatrong tht c, tb mt c n cc lp bn trong v mt phn cc hp chthu c trong tht c btn tht.

S mt mt cc hp cht cha nit khong 3,5-

14% so hm lng banu trong c. Gi tr tn tht ph thuc cht lng nguynliu c, phngphp gia cng mui, cht lng bn thnh phm v cc hm lngmuitrong c. Ngoi ra khi lm long xy ra hin tng trng n tht c, lmtngkhi lng. Tng khi lng khi lm long c bo 2-

7%, c trung bnh 5

-

12% v c gy 7-8%


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Mun s dng khi lng, l xng khi phi c mt s thay i k thut l b i l tto khi thay vo l thit b nn hi (air compressor) v bm nh lng. Ngoi ra cn c mtbc phun c t trong bungxng khi. Khi lng c bm nh lng a n bc phun.Ti y di p lc phun cao, khi lng bin thnh dng khi sng m v pht huy tc dngxng khi. Bm nh lng quyt nh lng khi phun ra nhiu hay t do mun ca ngi snxut mun xng khi nh hay nng sn phm ca mnh.


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u t l xng khi cho xng sn xut l loi u t ln. Do khng phi xng sn xut nocng c th trang b cho mnh mt l xng khi ng quy cch. Tuy nhin cc xng sn xutnh vn c th to ra cho mnh mt s sn phm xng khi theo phng php th cng.

Cn phn bit s khc bit gia khi lng t nhin (natural liquid smoke) v hng khi tnghp (synthetic smokeflavor) v cch s dng v liu dng ca hai nhm sn phm ny hon tonkhc nhau.

Hy lin h vi chng ti c t vn thm v k thut xng khi v cch s dng khi lngng cch. Nu qu khch cha u t c l xng khi, xin ng ngn ngi lin h vi chngti. Vn c cch sn xut ra sn phm xng khi bng mt s thao tc th cng.

Khuynh hng hin nay s dng khi lng ngy cng nhiu do tnh tin li v an ton chy n.Th hnh dung cc nh ch bin cc quc gia chu v yu cu cn phi c hng v khi ctrng ging Chu u m h phi nhp mt ca v g si v t to khi. iu nghch l li khi chi ph vn chuyn mt ca (dm bo wood chip) li cao hn gi tr ca l hng. Chak mt s nc c quy nh cht ch v nhp khu sn phm g v x l mi mt nh Nht Bn.Xng khi bng t mt ca sinh ra nhiu tro bi dnh trn b mt sn phm lm gim tnh cmquan ca sn phm v nhim mi trng. V th phng n s dng khi lng l ti u nht.

G c m tiu chun c t chy ngn to khi. Khi to ra c cho ngng t bng cchha tan trong nc. Sau khi lng th ny c tinh lc loi b cc thnh phn khng mongmun. Mt vi nh sn xut i khi cn cha khi lng ny trong cc thng g si mt thi gian

to ra hng khi du hn v m hn.


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So snh u khuyt gia dng khi lng v dng dm bo t to khi:

Tiu ch so snh Khi lng Khi bnh thng

Vn chuyn v tn tr

Vn chuyn nhp khu d dng,chi ph thp, chim th tch nhnn khng cn din tch kho trnhiu.

Vn chuyn nhp khu khkhn, chi ph cao v cn kho biln v phi ch trnh m mc.


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Phng chng chy n

Dung dch nc lng khngyu cu bt c iu kin phngchng chy n no

L t phi t yu cu phngchy. Kho bi cn phi t yucu phng chy

nh hng mi trngKhng nh hng n mitrng.

Tro bi gy nhim mi trng

Y t & sc khe

Khi lng c tinh lc schcc c cht nh hng n sckhe ngi tiu dng.

Khi th vn cn cha mt sthnh phn c hi nh hngn sc khe ngi tiu dng.

Chi ph sn xut

u t ban u cao do phi ut mi hoc ci tin thit b - vlu di tit kim chi ph snxut

Chi ph sn xut cao.

Qun l cht lng sn phmB mt sn phm c cm quantt. Mu sc p ng nht.Mi khi ng u v n nh.

B mt sn phm i khi c trobi. Mu sc c th khng ngnht. Mi v ty thuc vongun cung cp dm bo.

C 2 phng php xng khi: xng khi nng v xng khi lnh. S khc nhau c bn gia haiphng php xng khi l nhit . Xng khi nng vi nhit 70 800C dng sn xut xcxch, ham, ba ri trong khi xng khi lnh nhit 200C dng sn xut mt s mt hngthy sn v d nh fillet c hi xng khi.

oi thit b no cn cho quy trnh xng khi?

Thit b dng xng khi c gi l l xng khi (smoke house). L xng khi c bn c cuto bao gm: l t to khi (smoke generator) v bung xng khi (smoke chamber). Ty theophng php xng khi nng hay lnh m bung xng c gn thit b to nhit hoc thit blm lnh. Ngoi ra trong bung xng cn c gn thit b to m v qut gi to dng i lugip cho nhit v m ng nht bt c im no trong bung xng. Mt s l hin ingy nay c th c 4 chc nng trong mt, l: hp, sy, xng khi vquay nng. Mt bngiu khin c gn chp vi x l c th ln chng trnh iu khin cc thng s nhit , m v thi gian cho tng chc nng trn.


11/12

Tm hiu v ch bin tht xng khi

Trn th trng tht ch bin c by bn nhiu mt hng xng khi nh xc xch xng khi, thtba-ri (ba-ch) xng khi, c hi xng khi Tuy y khng phi l mn n ch bin truynthng ca ngi chu ni chung v ngi Vit ni ring, th nhng ph bin rng ri vc nhiu ngi bit n. Nhli cch y hn 15 nm (nm 1995) ngi vit bi ny c dpmang v cho gia nh nm th mn ba-ri heo xng khi. M ti lc y nm xong lin ni: ailm bp vng v mn n b m khi Vy xng khi c ngun gc t u? Mc ch caxng khi l g?..


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Phng php xng khi bt ngun t u? Mc ch ca xng khi?

Ngy xa xng khi thc phm truyn thng ti Chu u c l bt ngun t cc th sn mun

bo qun tht th rng sn c n dn. Thi y ngi ta tnh c pht hin rng tht th rngc treo bn gin bp c thi bo qun di hn v cho hng v ngon hn. Ngy naytuy phng php xng khi hin i v phc tp hn nhng cng khng nm ngoi ngha boqun v gia tng thm hng v cho sn phm. Ngoi ra xng khi cn c thm mt cng dngmi l to mu cm quan cho sn phm.

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