Qhov cuam tshuam ntawm tooj liab rau Stills
Thaum lub sij hawm distillation txheej txheem, nws tsis yog nyuaj rau nrhiav tau hais tias tooj liab tseem muaj kev ua haujlwm zoo dua stainless hlau tseem nyob rau hauv tshem impurities thiab optimizing aroma. Thaum txiv hmab txiv ntoo yog distilled rau hauv brandy, lub aroma ntawm tus ntsuj plig distilled nyob rau hauv ib tug tooj liab tseem yog ntau natural thiab ntshiab, thiab fruity aroma yog ilv thiab elegant; Thaum whiskey yog distilled los ntawm cov nplej, lub aroma ntawm tus ntsuj plig distilled nyob rau hauv ib tug tooj liab tseem yog ntau ntshiab thiab sib haum xeeb tshaj li ntawm ib tug stainless hlau tseem, thaum stainless hlau Spirits distilled los ntawm cov khoom feem ntau muaj ib tug nqaij zoo li aroma. Rau cov kua txiv hmab txiv ntoo uas muaj me me ntawm leej faj, cov ntsuj plig distilled los ntawm stainless hlau tseem muaj cov ntxhiab tsw ntxhiab. Qee zaum, tooj liab tseem tuaj yeem siv los txo cov tshuaj tsw qab. Qhov tshwm sim no tseem qhia tau tias cov tooj liab tseem muaj qee yam cuam tshuam rau kev tshem tawm cov ntxhiab tsw ntxhiab.
Feem ntau off-flavors yog los ntawm sulfides. Raws li kev tshawb fawb, ntawm ntau yam sulfides, trisulfide (DMTS) muaj kev cuam tshuam tseem ceeb. Nws qhov kev nkag siab qhov pib yog li ntawm 0.1 ug/L, los yog qhov siab ntawm lub siab tshiab. Txog 1 ~ 6 micrograms / liter. Raws li kev tshawb fawb, thaum siv tooj liab thiab stainless hlau tseem siv, tsuas yog DMTS ua qhov sib txawv tseem ceeb ntawm ntau yam sulfides.
Txawm li cas los xij, tsis yog txhua tus tooj liab muaj qhov cuam tshuam zoo ib yam. Piv txwv li, nyob rau hauv kev sim nrog iav tseem, ntxiv tooj liab ntsev (cuprous chloride) yuav ua rau kom cov ntsiab lus ntawm DMTS, thaum ntxiv tooj liab mesh yuav txo tau cov nyhuv ntawm siv tooj liab stills. Nws yog qhov zoo dua li cov khoom tshiab, thiab txawm tias lwm cov hlau ions hauv cov kua txiv plig yuav muaj kev cuam tshuam. Copper's catalytic action converts thiols rau hauv cov pab pawg carbonyl tsawg dua.
Ib pab neeg tau ua qhov kev sim ntawm qhov cuam tshuam ntawm tooj liab nyob rau hauv ntau qhov chaw ntawm qhov tseem ntawm cov style ntawm distilled caw. Noj cov whiskey tseem ua piv txwv, cov kua txiv hmab txiv ntoo thiab cov ntsuj plig tseem raug muab tshem tawm rau hauv rau qhov chaw thiab hloov nrog cov hlau tsis huv. Ua ntej hloov, tag nrho-tooj liab thiab tag nrho-stainless steel stills tau siv rau kev soj ntsuam zoo, uas pom tau tias tag nrho cov tooj liab tseem yog Cov distiller muaj peev xwm tshem tawm tsis kaj siab leej faj, nqaij thiab lwm yam impurities thiab ua kom nws zoo li huv.
Hauv kev tsim khoom ntawm Scotch malt whiskey thiab Fabkis Cognac, kev siv tooj liab hauv cov tseem siv rau distillation yog suav tias yog lub luag haujlwm tseem ceeb hauv aroma ntawm cov ntsuj plig distilled. Qhov kev sim no tau pom tias tooj liab muaj txiaj ntsig zoo hauv qee qhov ntawm lub lauj kaub tseem tshaj lwm tus. Cov ntaub ntawv no tuaj yeem siv los pab nrog kev tsim qauv thiab kev saib xyuas, xws li cov qauv ntawm qhov tseem, qib ntawm tooj liab poob hauv qhov tseem, thiab lwm yam.
Niaj hnub no, ntau lub wineries nyob rau hauv Suav teb tau pib sim nrog tseem hom thiab cov ntaub ntawv. Piv txwv li, lub npe nrov Suav cawv distilleries yuav siv Charente-style tseem siv rau ib txwm brandy rau distillation; Qee cov neeg tau ntxiv cov pob purification tooj liab, goosenecks thiab condensers rau kev tsim cov cawv cawv; thiab ntau lub distilleries hauv Tebchaws Meskas Cov tooj liab tseem rau whiskey lossis brandy yuav raug hloov nrog cov hlau tsis muaj steel, thiab cov phaj tooj liab tshem tau yuav raug npaj rau cov khoom tseem ceeb.
