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Teach you how to distinguish between good and bad perfumes
Teach you how to distinguish between good and bad perfumes
Thereisamethodofidentificationthatdoesnotneedanyequipment.Itisveryconvenientandeffectivetouse.Thismethodiscalledfrictionmethod.Wefindtwokindsoffragrantoils.Wediponedropoffragrantoilontheforefingerofbothhands,andthenrubthethumbsofbothhandsseparately.Becauseoftheheatgeneratedbyfriction,themovementofaromaticmoleculesintheoilintensifiesandthefragrancewillspread.Afteroneminuteofrubbing,wecansmellthefragrantoilonthefingertips.Ifthesesameoilisnotadulterated,onlythefragranceofthefragrantoilisstrong;ifmixedwithothervegetableoils,besidesthefragranceofthefragrantoil,itwillalsominglewiththepeculiarsmellofadulteratedoil;ifitisblendedwithflavoringpigments,becausetheflavorisvolatile,thesmellwillstarttopunchatthebeginning,andthenbasicallytherewillbenosmellofsesameoil.Andtheflavorofrealfragrantoilwilllastlonger.Afterrubbingforhalfanhour,youcanalsoaskaboutthefragrantsmelloffingertips.Thismethodissimple,reliableandmostsuitableforfieldidentification.
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Thereisamethodofidentificationthatdoesnotneedanyequipment.Itisveryconvenientandeffectivetouse.Thismethodiscalledfrictionmethod.Wefindtwokindsoffragrantoils.Wediponedropoffragrantoilontheforefingerofbothhands,andthenrubthethumbsofbothhandsseparately.Becauseoftheheatgeneratedbyfriction,themovementofaromaticmoleculesintheoilintensifiesandthefragrancewillspread.Afteroneminuteofrubbing,wecansmellthefragrantoilonthefingertips.Ifthesesameoilisnotadulterated,onlythefragranceofthefragrantoilisstrong;ifmixedwithothervegetableoils,besidesthefragranceofthefragrantoil,itwillalsominglewiththepeculiarsmellofadulteratedoil;ifitisblendedwithflavoringpigments,becausetheflavorisvolatile,thesmellwillstarttopunchatthebeginning,andthenbasicallytherewillbenosmellofsesameoil.Andtheflavorofrealfragrantoilwilllastlonger.Afterrubbingforhalfanhour,youcanalsoaskaboutthefragrantsmelloffingertips.Thismethodissimple,reliableandmostsuitableforfieldidentification.
Edible oil can be mixed and used together
Edible oil can be mixed and used together
Time of issue : 2019-05-15 17:43:00
Edibleoilcanbemixedwithdifferentcookingmethods.Forexample,oliveoilhashighmonounsaturatedfattyacidcontentandnutrientcomponentsintheprimaryoil,whichcanproduceauniquefragranceandissuitableforcoldmix.Someconsumersbelievethatoliveoilisrichinunsaturatedfattyacids,sotheyprefertouseoliveoilincooking.XuChunxiangsaidthatcookingoilcontainsallkindsoffattyacids,buttheyhavedifferentcontents.Usuallythroughidentificationtests,wecanjudgewhichkindofoilisbythecompositionoffattyacids."Oilswithhighunsaturatedfattyacidsarenotsuitableforfrying."Heexplainedthatoilswithhighunsaturatedfattyacidsarenoteasytoformcholesterol,butbecauseoftheinstabilityofunsaturatedfattyacids,theyareeasytobreakchainsafterheatingandeasytooxidizeandpolymerizeafterfrying,whichmayproduceunhealthysubstances.Forexample,thepalmoilusedininstantnoodleshashighsaturatedfattyacidcontentandisstableafterheating,soitissuitableforfryingoil.Whenstir-fryingvegetableswithhighunsaturatedfattyacids,specialattentionshouldbepaidtotheheatingtimemustnotbetoolong.
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Edibleoilcanbemixedwithdifferentcookingmethods.Forexample,oliveoilhashighmonounsaturatedfattyacidcontentandnutrientcomponentsintheprimaryoil,whichcanproduceauniquefragranceandissuitableforcoldmix.Someconsumersbelievethatoliveoilisrichinunsaturatedfattyacids,sotheyprefertouseoliveoilincooking.XuChunxiangsaidthatcookingoilcontainsallkindsoffattyacids,buttheyhavedifferentcontents.Usuallythroughidentificationtests,wecanjudgewhichkindofoilisbythecompositionoffattyacids."Oilswithhighunsaturatedfattyacidsarenotsuitableforfrying."Heexplainedthatoilswithhighunsaturatedfattyacidsarenoteasytoformcholesterol,butbecauseoftheinstabilityofunsaturatedfattyacids,theyareeasytobreakchainsafterheatingandeasytooxidizeandpolymerizeafterfrying,whichmayproduceunhealthysubstances.Forexample,thepalmoilusedininstantnoodleshashighsaturatedfattyacidcontentandisstableafterheating,soitissuitableforfryingoil.Whenstir-fryingvegetableswithhighunsaturatedfattyacids,specialattentionshouldbepaidtotheheatingtimemustnotbetoolong.
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