
Stir frying (爆 bào) in the wok
Stir frying is an
umbrella term used to describe two techniques
for cooking food in a wok while stirring it: chǎo (
炒) and bào (
爆). The term stir-fry was introduced
into the English language by
Buwei Yang
Chao, in her book
How to Cook and Eat in Chinese, to
describe the chǎo technique.
“With the help of her daughter
and her husband, who is an artist with the written word, she has
created a new terminology, a new vocabulary, without which the art
of Chinese cooking cannot be adequately introduced to the Western
world. Some of the new terms like … ‘Stir-frying,’ … I venture to
predict, will come to stay as the Chaos' contributions to the
English language.” (from the Foreword by
Hu Shih)
“Roughly speaking, ch'ao
may be defined as a
big-fire-shallow-fat-continual-stirring-quick-frying of cut-up
material with wet seasoning. We shall call it ‘stir-fry’ or ‘stir’
for short. The nearest to this in western cooking is
sauté. … Because stir-frying has such critical timing and
is done so quickly, it can be called ‘blitz-cooking.’” The
two techniques differ in their speed of execution, the amount of
heat used, and the amount of tossing done to cook the food in the
wok.
Cantonese
restaurant patrons judge a chef's ability to perform stir frying by
the "
wok hei" produced in the food. This in
turn is believed to display their ability to bring out the
qi of the wok.
Chao technique
A product of the chǎo (炒) technique
The
chao technique is similar to the Western technique of
sautéing. A traditional round-bottom
cast iron or carbon steel pan called a wok is heated to a high
temperature.
A small amount of
cooking oil is then poured down the side
of the wok (a traditional expression in China
regarding
this is "hot wok, cold oil"), followed by dry seasonings (including ginger
and garlic), then at the first moment the
seasonings can be smelled, meats are added and
agitated. Once the meat is
seared,
vegetables along with liquid ingredients
(for example often including premixed combinations of some of soy
sauce, vinegar,
wine,
salt, sugar, and cornstarch) are added. The wok then may be covered
for a moment so the water in the liquid ingredients can warm up the
new ingredients as it steams off. To keep the meat juicy, usually a
cook would take the seared meat out before vegetables are added,
and put the meat back right before vegetables are done. In some
dishes, or if the cooking conditions are inadequate, different
components may be stir fried separately before being combined in
the final dish (if, for example, the chef desires the taste of the
stir fried vegetables and meats to remain distinct).
The food is stirred and tossed out very quickly using wooden or
metal
cooking utensils. Some chefs
will lift the wok to the side to let the flame light the oil or add
a dash of
wine spirit to
give the food extra flavor. Using this method, many dishes can be
cooked extremely quickly (within a minute).
Some dishes that require more time are cooked by adding a few
dashes of water after the stirring. Then the wok is covered with a
lid. As soon as steam starts to come out from under the lid, the
dish is ready. In this case, the food is stir fried on high heat
for
flavor and then steamed to ensure that it
is fully cooked.
Bao technique
The wok is heated to a dull red glow. With the wok hot, the oil,
seasonings, and meats are added in rapid succession with no pause
in between. The food is continually tossed, stopping for several
seconds only to add other ingredients such as various seasonings,
broths, or vegetables. When the food is deemed to be cooked it is
poured and ladled out of the wok. The wok must then be quickly
rinsed to prevent food residues from charring and burning to the
wok bottom because of residual heat.
The main ingredients are usually cut to smaller pieces to aid in
cooking. As well, a larger amount of cooking fat with a high
smoke point, such as
lard and/or
peanut oil, is
often used in bao.
See also
Footnotes
References
External links