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Teach you how to distinguish between good and bad perfumes

Time of issue : 2019-05-15 17:44:00

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

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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