Tea & Coffee 11/00 - Monitoring in Tea Production (#)
„If leaf temperature goes above 43ºC, the cell walls begin to break down, release enzymes and the catechins in the leaf begin to oxidize. What plantation workers often do not appreciate is the fact that when leaf is picked in a field where the ambient temperature is 40ºC and is loaded into a sack where the ambient temperature is also 40ºC, the temperature of the leaves nearest the outside of the sack will drop down to 28º, 29º, or 30º, as water is evaporated from the leaf. But the water stops evaporating in the middle of the sack where the leaf is packed more tightly and no air is circulating, and here the temperature can rise to as high as 50ºC due to the heat of respiration.“
http://www.teaandcoffee.net/1100/tea.htm - Cached
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Coffee Forest Symbiosis (INeedCoffee.com)
„The amazing fact is that coffee habitat and nature bring out the best chemistry in sustaining each others needs. Many foreigners who visit the plantation remark that Indian coffee plantations are bird and game sanctuaries. The architectural detail of the coffee mountain is astounding.“
http://www.ineedcoffee.com/04/forest/
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„The coffee crisis and a history of inequality conspire to keep them put. Most households earn a meager living often as little as a dollar a day picking coffee on the big plantations. Plantation owners can easily lock up 300-400 hectares, squeezing families into little more than their 50ft square plots. Don't believe the Malthusian population specialists who blame the poor for overpopulation and land degradation.“
http://www.equalexchange.com/partners/ nicaragua2.htm
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Global Exchange : Activist Network
„Sarah then introduced Celeste and Rey. Rey (a barista) had worked four months on several coffee plantations last year. He spoke about his life on the plantation, how he worked 20 to 30 days without a day off, how he carried 50 pound sacks on his back at the end of his workday (the hike to town took two to three hours while carrying 50 pounds on his back). He described his adobe home---no inside plumbing, no electricity, etc.“
http://www.globalexchange.org/campaigns/fairtrade/coffee/activists/ 75.html
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„Leaves: The elliptical leaves of the coffee tree are shiny, dark green, and waxy. The leaf area index is between 7 and 8 for a high-yielding coffee (Malavolta, 195 ). The coffee plant has become a major source of oxygen in much of the world. Each hectare of coffee produces 86 lbs of oxygen per day, which is about half the production of the same area in a rain forest (source: Anacafe).“
http://www.coffeeresearch.org/agriculture/ coffeeplant.htm
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