Coffee Presentation咖啡概述.ppt

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1、COFFEEBRIEFHISTORYFirstdrunkinEthiopiain575ADBroughttoEuropebyVenetiantradersin17thCenturyTypesofCoffeeArabicasThemostflavorfulcoffeebeansandcontainonlyhalfthecaffeineofRobustas.Robustas(Canephora)beanshavehighercaffeinecontentandamoreneutralflavorwhichdictatestheyareusuallymixedtoproduce

2、commerciallypreparedcoffeeblendsLibericaLeastqualitybeans,growninMalaysiaandWestAfrica.Thedemandislowbecauseofitspoorquality.GrowingAreasArabicasaredelicate,requirecooltropicalclimates,mustbegrownatahigherelevationof600to2,000meters.Robustusarehardierplants,capableofgrowingwellatlowaltitu

3、desof200to800meters.GreatCoffeeGrowingAreasoftheWorldAfricaEthiopia,Kenya,Yemen,Tanzania,Madagascar,Cameron,BurundiSouthAmericaBrazil-giantcoffeeproducingcountriesoftheworldColombia–secondlargestproducerinSouthAmericaVenezuelaGreatCoffeeGrowingAreasoftheWorldCentralAmericaandtheCarribeanC

4、ostaRicaGuatemalaJamaica–famousforBlueMountaincoffeePuertoRicoAsiaIndiaIndonesiaAustraliaandthePacificRimAustraliaHawaiiPapuaNewGuineaTheCoffeeProcessHarvestingCoffeebeansareharvestedwhenberries(calledCherries)arebrightredandripe.HarvestingTwoMethodsofPickingStripPicking-pickingtheentirec

5、rop,socherriesarepickedatdifferentstagesofripenessSelectivePickingtakingonlyredsfullyripecherries-formoreexpensiveandusedforhighqualityArabicabeansProcessing(CherryTreatment)DryprocessingCherriesarespreadoutonflatsurfaceinthinlayersinthesuntodryCherriesarepoundedinmortarsuntilbeanshavesep

6、aratedfromdrycoveringWetprocessingWashescherriesandarepulpedtoextractthebeanswhicharethenwashedagainBeansarethenspreadoutonthedryingtablesoronconcretetables.MechanicaldryingisalsousedMostwidelyusedRoastingCoffeebeansareroastedtoaninternaltemperatureofbetween200°Cand239°C/400ºFand450ºF,dep

7、endingontheroastrequiredCoffeebeanshavetoberoastedtoreleasethearomaandflavourGoodroastremainsbrown,blackbeansareoverroastedorburntwhichwillproducebittertasteWhatMakesaGoodCupofCoffee?BeansWaterGrindTampingBrewingBeansBeanQualityTimeelapsedsinceroastingGreenbeanscanl