連續的生產要尋求穩定的產品品質。但是往往因為諸多影響因素的存在,會出現品質波動。
一、顏色
對於注心蛋類芯餅來說,最容易產生波動的就是顏色的變化。當然顏色也是最直觀看得出來的外觀,如水分變化、重量差異等都可以反映在顏色的變化上。
對於連續生產線的產品,應先設定好最佳的工藝,如配方、漿料比重、漿料黏度、成型重量、烘烤時間、烘烤溫度等。但是在生產過程中因操作失誤或設備差異等會帶來偏差。
在漿料攪拌過程中,都應該按配方進行計量和操作。但是在操作過程中,可能會發生計量錯誤、漏添加、多duo添tian加jia等deng操cao作zuo失shi誤wu。其qi中zhong如ru果guo將jiang糖tang多duo添tian加jia,就jiu會hui因yin加jia劇ju美mei拉la德de反fan應ying使shi顏yan色se會hui更geng深shen,此ci時shi口kou感gan偏pian甜tian的de問wen題ti會hui更geng明ming顯xian。如ru果guo少shao添tian加jia小xiao麥mai粉fen或huo多duo添tian加jia水shui,則ze漿jiang料liao比bi重zhong會hui高gao,黏nian度du會hui降jiang低di。因yin漿jiang料liao中zhong的de水shui含han量liang增zeng加jia,在zai烘hong烤kao條tiao件jian不bu變bian的de情qing況kuang下xia,水shui分fen不bu能neng充chong分fen排pai出chu,顏yan色se也ye會hui顯xian淡dan。反fan之zhi亦yi然ran。
二、重量
在(zai)成(cheng)型(xing)過(guo)程(cheng)中(zhong)要(yao)重(zhong)點(dian)管(guan)理(li)重(zhong)量(liang)偏(pian)差(cha)的(de)控(kong)製(zhi)。如(ru)果(guo)糕(gao)坯(pi)重(zhong)量(liang)比(bi)標(biao)準(zhun)重(zhong)量(liang)重(zhong),在(zai)烘(hong)烤(kao)過(guo)程(cheng)中(zhong),所(suo)需(xu)要(yao)的(de)熱(re)量(liang)也(ye)要(yao)多(duo),但(dan)是(shi)在(zai)烘(hong)烤(kao)條(tiao)件(jian)不(bu)變(bian)的(de)情(qing)況(kuang)下(xia),因(yin)熱(re)量(liang)有(you)限(xian),糕(gao)坯(pi)烤(kao)不(bu)熟(shu),水(shui)分(fen)也(ye)會(hui)高(gao),顏(yan)色(se)就(jiu)會(hui)淺(qian)。所(suo)以(yi)成(cheng)型(xing)重(zhong)量(liang)要(yao)在(zai)標(biao)準(zhun)重(zhong)量(liang)範(fan)圍(wei)內(nei)浮(fu)動(dong)。如(ru)果(guo)偏(pian)差(cha)太(tai)大(da),糕(gao)坯(pi)顏(yan)色(se)也(ye)會(hui)深(shen)淺(qian)不(bu)一(yi)。控(kong)製(zhi)成(cheng)型(xing)重(zhong)量(liang),首(shou)先(xian)要(yao)保(bao)證(zheng)每(mei)批(pi)漿(jiang)料(liao)的(de)穩(wen)定(ding)。其(qi)次(ci)就(jiu)是(shi)成(cheng)型(xing)機(ji)的(de)性(xing)能(neng)及(ji)維(wei)護(hu)。
烘烤過程可分為預糊化階段、膨脹階段、成熟定型階段、上色階段、neibuhongtoujieduandeng。genjuzhexiejieduanyaoxianshedinghegudinghongkaoshijian。ruguohongkaoshijianduan,zehongkaobuzu,gaopiyansehuiqian。ruguohongkaoshijianguochang,zereliangguoduo,yansehuishen。
烘烤的溫度的變化(也就是熱量的變化),直接影響糕坯的顏色。首先隧道爐本身的性能,如保溫能力、熱量的分布、控kong溫wen方fang式shi等deng,會hui決jue定ding烘hong烤kao溫wen度du的de變bian化hua的de程cheng度du。除chu此ci之zhi外wai,通tong常chang是shi因yin為wei漿jiang料liao的de間jian斷duan性xing進jin入ru隧sui道dao爐lu而er導dao致zhi的de顏yan色se過guo深shen。漿jiang料liao在zai烤kao爐lu內nei會hui吸xi收shou大da量liang的de熱re量liang。正zheng常chang生sheng產chan時shi,烤kao爐lu內nei熱re量liang會hui分fen布bu均jun勻yun,且qie均jun勻yun的de被bei漿jiang料liao所suo吸xi收shou。但dan是shi如ru果guo因yin為wei成cheng型xing故gu障zhang,導dao致zhi烤kao爐lu內nei漿jiang料liao部bu分fen缺que少shao的de話hua,在zai缺que少shao漿jiang料liao的de區qu域yu的de熱re量liang會hui被bei周zhou邊bian的de漿jiang料liao所suo吸xi收shou。這zhe樣yang缺que少shao漿jiang料liao的de周zhou邊bian的de糕gao坯pi顏yan色se會hui深shen。所suo以yi成cheng型xing的de穩wen定ding供gong應ying糕gao坯pi也ye有you很hen大da的de影ying響xiang。如ru果guo缺que少shao漿jiang料liao,就jiu要yao及ji時shi降jiang低di烤kao爐lu的de溫wen度du。
還hai有you烤kao爐lu的de排pai氣qi量liang的de變bian化hua也ye會hui影ying響xiang顏yan色se的de變bian化hua。烤kao爐lu的de排pai氣qi雖sui然ran主zhu要yao是shi因yin為wei要yao排pai出chu廢fei氣qi和he水shui分fen而er設she置zhi,但dan隨sui著zhe水shui分fen的de排pai出chu也ye會hui有you很hen多duo的de熱re量liang排pai出chu。如ru果guo排pai氣qi量liang變bian化hua大da,就jiu會hui影ying響xiang熱re量liang變bian化hua而er導dao致zhi顏yan色se變bian化hua。排pai氣qi量liang通tong常chang可ke通tong過guo排pai氣qi閥fa手shou動dong控kong製zhi。排pai氣qi閥fa開kai得de過guo小xiao,熱re量liang排pai出chu就jiu小xiao,爐lu內nei的de熱re量liang聚ju集ji過guo多duo而er無wu法fa排pai出chu,顏yan色se也ye會hui變bian深shen。當dang排pai氣qi閥fa開kai得de過guo大da,雖sui熱re量liang排pai出chu會hui多duo,但dan大da部bu分fen烤kao爐lu都dou有you自zi動dong控kong溫wen係xi統tong,會hui自zi動dong增zeng加jia熱re量liang,所suo以yi顏yan色se變bian化hua會hui相xiang對dui小xiao。
三、尺寸
duiyujiaxindanleixinbinglaishuo,zhuyaodezhiliangwentiweigaopipiandechicunbianhuale。yinweidabufendegaopipiandoubushiyongmoju,suoyichicundekongzhichengweizhuyaokongzhineirong。zhuyaodeyingxiangyinsuyoujiangliaozhongdepengsongjiduojiahuoshaojia,chengxingzhongliangchayi,jiangliaonianduguogaohuoguodi,kaoluwenduchayideng。
膨peng鬆song劑ji的de主zhu要yao功gong能neng就jiu是shi通tong過guo受shou熱re後hou產chan氣qi排pai出chu的de過guo程cheng使shi糕gao坯pi變bian大da。但dan是shi如ru果guo膨peng鬆song劑ji添tian加jia過guo多duo,則ze就jiu會hui使shi糕gao坯pi尺chi寸cun過guo大da。如ru果guo膨peng鬆song劑ji添tian加jia量liang過guo少shao,則ze糕gao坯pi尺chi寸cun就jiu會hui小xiao,在zai烘hong烤kao過guo程cheng中zhong漿jiang料liao的de黏nian度du會hui影ying響xiang糕gao坯pi的de尺chi寸cun。因yin為wei在zai烘hong烤kao過guo程cheng中zhong,預yu糊hu化hua階jie段duan的de漿jiang料liao的de流liu動dong性xing基ji本ben決jue定ding了le最zui終zhong糕gao坯pi片pian的de尺chi寸cun。如ru果guo漿jiang料liao的de黏nian度du低di,流liu動dong性xing好hao,在zai預yu糊hu化hua過guo程cheng中zhong,漿jiang料liao攤tan開kai程cheng度du大da,烘hong烤kao出chu來lai的de糕gao坯pi片pian尺chi寸cun也ye會hui大da。如ru果guo漿jiang料liao黏nian度du高gao,流liu動dong性xing差cha,在zai預yu糊hu化hua過guo程cheng中zhong攤tan開kai程cheng度du受shou限xian,烘hong烤kao出chu糕gao坯pi片pian尺chi寸cun則ze會hui小xiao。烤kao爐lu的de溫wen度du,特te別bie是shi預yu糊hu化hua階jie段duan的de溫wen度du差cha異yi,也ye是shi對dui漿jiang料liao的de流liu動dong性xing的de影ying響xiang因yin素su。烤kao爐lu前qian區qu溫wen度du高gao,漿jiang料liao流liu動dong性xing也ye會hui增zeng加jia,尺chi寸cun則ze會hui大da。反fan之zhi亦yi然ran。
在zai生sheng產chan過guo程cheng中zhong,變bian化hua因yin素su多duo就jiu意yi味wei著zhe產chan品pin質zhi量liang不bu穩wen定ding。需xu要yao將jiang更geng多duo的de參can數shu固gu定ding,減jian小xiao變bian化hua因yin素su等deng方fang法fa來lai分fen析xi原yuan因yin及ji積ji極ji改gai善shan,來lai使shi產chan品pin穩wen定ding。
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