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Tea
- 3. TeaTea ๏ต Tea is an evergreen tropical plant calledTea is an evergreen tropical plant called Camellia sinensisCamellia sinensis ๏ต It is prepared from the leaf bud and topIt is prepared from the leaf bud and top leaves of the bushleaves of the bush ๏ต It is a healthy beverage, containing halfIt is a healthy beverage, containing half the caffeine present in coffee & it aidsthe caffeine present in coffee & it aids muscle relaxation & stimulates Centralmuscle relaxation & stimulates Central Nervous SystemNervous System
- 4. Tea CultivationTea Cultivation ๏ต Grows mainly between the tropics, requiringGrows mainly between the tropics, requiring 1000 โ 1250mm of rain per year1000 โ 1250mm of rain per year ๏ต The Ideal temperature is 10-30ยฐCThe Ideal temperature is 10-30ยฐC ๏ต It grows above sea level up to 2400mIt grows above sea level up to 2400m ๏ต The plant are placed in rows a meterThe plant are placed in rows a meter apartapart ๏ต The bushes are pruned every four to fiveThe bushes are pruned every four to five years to rejuvenate the bushesyears to rejuvenate the bushes
- 5. HarvestingHarvesting ๏ต Plucking depends upon the climate, new growthPlucking depends upon the climate, new growth could be plucked 7-12 days intervals duringcould be plucked 7-12 days intervals during growing seasongrowing season ๏ต Harvesting is carried out through the growingHarvesting is carried out through the growing season referred as flushseason referred as flush ๏ต First flush is known as early spring pluckingFirst flush is known as early spring plucking ๏ต Second flush is in late springSecond flush is in late spring ๏ต Autumn flush is late seasonAutumn flush is late season harvestharvest
- 6. ProcessingProcessing ๏ต The production of tea involvesThe production of tea involves several stepsseveral steps ::
- 7. WitheringWithering ๏ต To reduce the moisture in tea leavesTo reduce the moisture in tea leaves ๏ต Tea is laid out on a wire mesh in troughsTea is laid out on a wire mesh in troughs ๏ต Air is then passed through the tea removing theAir is then passed through the tea removing the moisture in a uniform way.moisture in a uniform way. ๏ต It takes approximately 12-17hrsIt takes approximately 12-17hrs
- 8. RollingRolling ๏ต Tea is placed into rolling machine, which rotatesTea is placed into rolling machine, which rotates horizontally on the rolling tablehorizontally on the rolling table ๏ต It creates the twisted wiry looking tea leavesIt creates the twisted wiry looking tea leaves ๏ต During the rolling process the leaves are alsoDuring the rolling process the leaves are also broken openbroken open ๏ต Tea is placed into rolling machine, which rotatesTea is placed into rolling machine, which rotates horizontally on the rolling tablehorizontally on the rolling table ๏ต It creates the twisted wiry looking tea leavesIt creates the twisted wiry looking tea leaves ๏ต During the rolling process the leaves are alsoDuring the rolling process the leaves are also broken openbroken open
- 9. CTC ProductionCTC Production ๏ต CTC stands for Crush, Tear & CurlCTC stands for Crush, Tear & Curl ๏ต Withered leaf are cut to uniform size by aWithered leaf are cut to uniform size by a machinemachine ๏ต The leaves are fed to machine where theyThe leaves are fed to machine where they are crushed ,torn & curled by metal rollersare crushed ,torn & curled by metal rollers
- 10. Oxidation (fermentation)Oxidation (fermentation) ๏ต The enzyme in the tea leaf comes in contactThe enzyme in the tea leaf comes in contact with air & starts oxidationwith air & starts oxidation ๏ต It creates flavour, colour & strengthIt creates flavour, colour & strength ๏ต Tea leaf colour changes from green to lightTea leaf colour changes from green to light brown to deep brownbrown to deep brown ๏ต The ideal temperature is 26ยฐCThe ideal temperature is 26ยฐC ๏ต It takes about 1/2hr to 2hrsIt takes about 1/2hr to 2hrs ๏ต Longer the oxidation darker isLonger the oxidation darker is the teathe tea
- 11. DryingDrying ๏ต To stop oxidation the tea leaves are passedTo stop oxidation the tea leaves are passed through hot air the temperature between 190through hot air the temperature between 190 to 210ยฐFto 210ยฐF ๏ต It reduces the total moisture content to aboutIt reduces the total moisture content to about 3% & stops the enzymes3% & stops the enzymes ๏ต The dried tea are now sorted into gradesThe dried tea are now sorted into grades before packagingbefore packaging
- 13. Classification of teaClassification of tea
- 15. Tea GradingTea Grading ๏ต Whole leafWhole leaf โ Souchong, orange pekoeSouchong, orange pekoe ๏ต Broken LeafBroken Leaf โ PekoePekoe โ Broken orange pekoeBroken orange pekoe ๏ต Fannings & DustFannings & Dust
- 16. Black tea Green tea White Tea Oolong Herbal tea
- 17. Thank youThank you โฆโฆ anan anish banerjeeanish banerjee initiativeinitiative