1.
What is tea?
True
"teas" are made from the dried leaves of the Camellia,
the tea plant, which was first cultivated in China and found
growing wild in India. Chinese monks and European traders
introduced it to Japan, Sri Lanka and other countries. Today
there are more than 3000 varieties of tea, each having its own
distinct character and named for the district in which it is
grown.
2.
What are "herbal teas" and "herbal
infusions"?
Herbal
"teas" contain no true tea leaves, but are created
from an international collection of herbs and . These
all-natural botanical ingredients are combined to create
exciting flavors and aromas in a rainbow of colors from pale
yellow to deep red.
Tea
professionals and connoisseurs usually prefer to restrict the
name 'tea' to real tea, so you may see the following names used
as well:
-
“Herbal
infusion”, which simply means a drink made by steeping an
herb in hot water. (Tea itself is an infusion of tea
leaves.)
-
“Tisane”,
which in French means any herbal drink.
Some
common herbs that are used as tisanes are peppermint, chamomile,
rose hips, lemon verbena, and fennel. A number of companies
specialize in producing herbal blends. Many tea companies also
sell tisanes.
Some
exaggerated claims have been made for the medicinal properties
of herbal infusions. Even so, some herbs do have generally
recognized benefits. For instance, rose hips contain vitamin C;
chamomile helps many people relax; and peppermint has a
noticeable soothing effect on the stomach. Herbs can also cause
problems. Chamomile, for example, can cause allergic reactions
in people who are allergic to ragweed.
3.
What are the different kinds of tea?
The
three main categories are green, black, and oolong. All three
kinds are made from the same plant species. The major
differences between them are a result of the different
processing methods they undergo. Black teas undergo several
hours of oxidation in their preparation for market; oolongs
receive less oxidation, and green teas are not oxidized at all.
There
are, of course, many different varieties within these three main
categories.
4.
How is tea produced?
The
first step in tea production is the harvest. Most harvesting is
still done by hand, which (as you can imagine) is very
labor-intensive. Some growers have had success using a machine
that acts much like a vacuum cleaner, sucking the leaves off the
branch. The latter method is used for the cheaper varieties of
tea, as it is not capable of discriminating between the
high-quality tip leaves and the coarser leaves toward the bottom
of the branch.
The
harvested leaves can be processed in two ways: CTC or orthodox.
CTC,
which stands for "crush, tear, curl," is used
primarily for lower-quality leaves. CTC processing is done by
machine; its name is actually fairly descriptive. The machines
rapidly compress withered tea leaves, forcing out most of their
sap; they then tear the leaves and curl them tightly into balls
that look something like instant coffee crystals. The leaves are
then "fired," or dehydrated.
Most
tea connoisseurs are not very interested in CTC tea, since this
process does not allow for the careful treatment that
high-quality leaves merit. But CTC has an important and
legitimate role in the tea industry: since it is a mechanized
process, it allows for the rapid processing of a high volume of
leaves which otherwise would go to waste. It is also good for
producing a strong, robust flavor from leaves of middling
quality; in fact, for many varieties of leaf CTC is the
preferred processing method.
The
orthodox method is a bit more complex, and is usually done
mostly by hand. The process differs for black, green, and oolong
teas. The basic steps in the production of black tea are
withering, rolling, oxidation, and firing.
First,
the leaves are spread out in the open (preferably in the shade)
until they wither and become limp. This is so that they can be
rolled without breaking.
Rolling
is the next step. This is rarely done by hand any more; it is
more often done by machine. Rolling helps mix together a variety
of chemicals found naturally within the leaves, enhancing
oxidation. After rolling, the clumped leaves are broken up and
set to oxidize.
Oxidation,
which starts during rolling, is allowed to proceed for an amount
of time that depends on the variety of leaf. Longer oxidation
usually produces a less flavorful but more pungent tea. Many
texts refer to the oxidation process by the misleading term
"fermentation." However traditional and evocative the
term may be, I think it is best avoided. Oxidation of tea leaves
is a purely chemical process and has nothing to do with the
yeast-based fermentation that produces bread or beer.
Finally,
the leaves are heated, or "fired," to end the
oxidation process and dehydrate them so that they can be stored.
Oolong
is produced just like black tea, except that the leaves are
oxidized for less time.
Green
tea is not oxidized at all. Some varieties are not even
withered, but are simply harvested, fired, and shipped out.
5.
How is tea graded?
The
first thing to keep in mind is that these are descriptions of
the dry, cured leaf only. They have no necessary
relation to the aroma, color, or flavor of the end product. It
is possible to get a delicious cup from ugly, broken leaves; it
is possible to get an awful cup from well-handled, beautiful
whole leaves. But since you may have little information to work
with other than the grade, let's look at the various grades.
Here
are our basic grades:
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