Sunday, November 22, 2009
Monday, November 16, 2009
Sunday, November 15, 2009
Friday, November 13, 2009
Sunday, July 12, 2009
Processing of Tea
Withering of Tea leaves is an activity wherein the freshly plucked leaves are dried with the ambient or warm air (air with a hygrometric difference of minimum 4* Fahrenheit). The purpose of withering is two fold. First is to remove about 20 to 40 % moisture so as to make it flaccid and render it capable of withstanding further rigors of processing. This is known as physical wither. Second is to increase the concentration of enzymes in the leaf, while simultaneously allowing the chlorophyll to undergo chemical decomposition. This is known as chemical withering. Withering is done only for making Black Tea and not done for making Green Tea. Finer leaf can take harder wither; coarser leaves can not take hard withers. An average factory may have up to 40 withering troughs having Axial Flow fans of 7.5 HP each.
Steaming or Pan Frying is a process wherein the freshly harvested leaves are subjected to steaming or frying on low heat to deactivate all the enzymes present in the leaves. Steaming or drying is done only for making of Green or Oolong tea, and not done for making Black Tea.
Rolling or CTC is a process by which the cells of the leaves are ruptured. Rolling is a gradual process of cell rupturing, wherein the leaves are rolled in rolling tables for certain duration, at the end of which the leaves become twisted and curly. This process is known as the “Orthodox” process. CTC is a rapid process of complete cell rupturing, wherein the leaves are fed into the CTC rollers through a BLC or Rotor-vane for Cutting, Tearing and Curling, at the end of which the Tea leaves become round and granular in shape. A factory may have 12 rolling tables of 15 HP each or 6 CTC machine of 30 HP each and another 25 HP for a BLC machine.
Fermenting is a process wherein the leaf is oxidized for a duration of 1-3 hours during which the exposed juices of the leaves react with atmospheric oxygen. This is where the polyphenols and liquoring characteristics of all Black Tea is developed. There is no fermentation of Green Tea. This is the most potent stage for bacterial growth in tea, hence immaculate hygiene is essential at this stage.
Drying is a crucial process from the end users point of view. It serves a dual purpose. One, that of arresting further Oxidation of leaves by rapidly reducing the moisture content of Tea from 60%-70% to 3%-4%. Second, drying locks in the carefully developed characteristic flavors and provides keeping quality or shelf life to the Leaves. Driers may be Coal, Furnace Oil or Gas fired. A factory may have 4 to 5 dryers using 50 HP each.
Sorting of Tea is the process by which different sizes of grains / leaves of tea are separated. In the process of sorting, flakes, fibers and stalk of tea is also removed to give it a clean appearance. There is nothing wrong with drinking clean teas of mixed sizes. The terminologies used in naming of grades have a Chinese origin, and confusing at its best.
Packing of Tea is the final process on a plantation, wherein the graded Tea Leaves are packed in approved bulk packages. The packaging choices available are Wooden chests with an Aluminum or poly Lining, Jute Bags with poly liner, HDPE Bags with poly liner, Multi walled Paper Sacks and Vacuum Packs. Wooden chests have become almost obsolete. Paper sacks can be palletized, and hence preferred by exporters. Jute Bags are preferred by domestic buyers due to its resale value.
Sunday, May 31, 2009
Sunday, May 17, 2009
Saturday, February 21, 2009
Friday, February 13, 2009
Friday, February 6, 2009
Organic Tea, Back to Basics
ORGANIC TEA
Historically, Tea is known to have grown in the most inaccessible places, in its Natural pattern, and hence was first discovered as “The Elixir of Life” by the Buddhist Monks in China.
Tea was supposed to be of so Divine a nature, that the Monks did not even think of its cultivation at that time, but instead deployed Monkeys to pluck and bring Tea Leaves from such Inaccessible places for which they would be given Opium!
“This was Natural Tea”
Its usage was restricted to the Spiritual Few
Then came the Aristocracy of China, and the King was the only one who could drink or offer Tea.
Tea became reserved for the Monks and Kings.
With the spread of the Dutch and British Empire, who saw enormous profits in this “Miraculous” herb of the “East”, which gave “Good Health and Long Life” to its drinkers, were the first to introduce the Beverage commercially to Europe.
Tea became a vastly traded item. Finally the “Elixir of Life” was available to all of Mankind, and became the most widely consumed beverage in the world. Its many medicinal values are universally accepted and established.
Journey to the Past
Some estates in the recent times began to experiment by shunning the use of all Chemical Fertilizers, pesticides, stimulants etc on their Tea Plants. They began to provide Forest Cover and Grass Tracts between Sections of Tea.
These estates lost tremendous amount of Money by way of Reduced Yields due to Withdrawal of Fertilizers and Increased occurrence of Pests and Blights.
The Planters Persisted in their quest of achieving what was now appearing as a streak of light at the end of the tunnel.
And the end result is the Spectacular “Organic Tea”, with its outstanding Taste and Briskness, sans the ill effects of (toxic) chemicals, grown in an environment friendly manner.
And this status is conferred after suffering the rigorous abstention from anything In-Organic for three excruciating long years.