TEMPERATURE
|
COLOR
|
MUSCLE PROTEIN
|
PROTEIN BOUND WATER
|
COLLAGEN
|
40·C
|
red
|
denature
|
||
50·C
|
start
to coil up and shrink
|
begins
to flow
|
||
60·C
|
pink
|
coagulation
well under way
|
begins
to denature
|
|
70·C
|
grey
|
mostly
coagulated
|
flow
ceasing
|
|
80·C
|
light
brown
|
densely
associated tough meat
|
||
90-C
|
rapidly
turning into gelatin
|
|||
l00·C
|
Exceptional food that worth a special journey. And all other foods that can kill you.
Sunday
Tips to Cooking Meat
Choosing
the Beef
The best joints for
roast beef are either a Rib of Beef, a Sirloin or a Fillet. Rib works well as
usually it will be cooked on the bone as keeping the bone in makes for a
tastier piece of beef when cooked but both Sirloin and Fillet are also very
good.
The beef should be:
1) Dark in color - meaning it has been
hung well and is mature.
2) A thick covering of fat which adds
flavor and prevents the joint from drying out during cooking. This layer can be
removed before serving so no need to worry too much about excess fat.
3) Marbling:
Marbling is small slivers of fat running through the flesh which again adds
flavor and prevents drying out during cooking.
How
to Cook Meat to Enhance its Flavor
Cooking
Meat - How much Flavor?
Flavor is another major consideration when deciding how to cook
meat. When proteins are heated together with sugars (in this context 'sugars' include large molecules made by joining small
sugar rings together such as polysaccharides or starch and other carbohydrates
to temperatures above about 140°C,a whole series of chemical reactions occur
(the Maillard reactions). These reactions (which also brown the meat) break the large protein molecules down
into smaller molecules that are volatile and hence can release flavors and
smells. The flavours we think of as 'meaty' smells in fact are only
generated during cooking at these high temperatures.
Thus, if we do not
allow the meat to get hot, none of these Maillard reactions will
occur and the final dish will not taste very 'meaty'. To achieve the desirable 'meaty'
flavors we need to make sure that some parts of meat reach high temperatures (well
above 100°C) and remain at those temperatures for long enough for the meat to
become a rich dark brown colour.
The combination of
attempting not to heat those muscles that contain little connective tissue
above about 40°C,while heating those
parts where there is lots of connective tissue to temperatures above 70°C; and at the same time ensuring that
some parts are heated to above 130°C
makes the cooking of meats a complex process .
However, there are a
few simple guidelines that, if followed, should ensure a good, tender, and flavorsome
result every time.
Key
Points to Bear in Mind When Cooking Meat
1) Always ensure the outside of the meat is
cooked at a high temperature until it is a dark brown color.
- i.e. start cooking meats at high temperatures
2) Cook meats with little connective tissue for
only a short time so that the outside is browned, but the inside does not
become tough
- i.e. grill, fry or roast these meats.
3) Cook meats with lots of connective tissue
for very long times so that all the connective tissue denatures and the bundles
of coagulated muscle proteins fall apart making the meat tender again.
- i.e. make stews with gristly meats
Why
are These Key Points Important?
Cooking at high
temperatures and browning the meat is most important since the main flavor is
generated by the "Maillard" reactions which only occur at temperatures
above about 130 Ce. The cooking time should be adjusted to be
just long enough to degrade the connective tissue present in the meat, without
toughening the muscle proteins too much.
The Effects of Heat on Meat
If you have time you
can apply the techniques above by trying this recipe Texas
Barbecued Beef Brisket
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