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Cookware Materials
| As anyone who has shopped for cookware knows, you can buy pots and pans made from a wide variety of materials. Some are good, some are better and some are, in the words of a wise old sage, "just plain lousy". |
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| One of the oldest cookware materials is copper.
While copper does a great job of distributing heat evenly, used by
itself it is soft enough that it bends easily. To remedy this, many
years ago other metals were mixed with copper to strengthen the
cookware. So copper became a metal to use in cookware to enhance the
heat distribution properties of other metals. Usually copper is the
exterior coating for stainless steel. One manufacturer's famous
cookware, for instance, has a copper coating on the bottom of their
stainless steel pans. Newer developments have combined copper in a
tri-ply construction that has resulted in beautiful and functional pans. |
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(To see our selection of Cast Iron cookware, click here.)
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Cast iron
has long been a great material for cookware. Throughout the centuries,
cast iron pots and pans have been the treasures of kings and more
recently have been passed down through the generations of many
families. Besides being almost impossible to break, cast iron does a
great job of evenly distributing heat. A good cast iron Dutch oven,
for instance, does something special for such things as soups, stew,
pot roasts and a variety of other things. It is a staple of both
campfire cooking enthusiasts and indoor chefs for the slow cooking
goodness that can be accomplished with cast iron cookware.
Far
from the exotic non-stick surfaces that have been developed in recent
years, cast iron users have long known of the special non-stick
properties of a well seasoned fry pan or Dutch oven. When seasoned
properly by a new owner (see the page on the care of cast iron
cookware), it can prove to be as effective for non-stick cooking and
easy clean up as any new stainless steel or aluminum pans on the market.
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(To see our selection of Cast Iron cookware, click here.)
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One
drawback of cast iron, however, is rust. But when washed, dried and
warmed on the stove to get the last vestiges of moisture off of the
metal, this is not a major problem. Therefore, cast iron pans can pass
through generation after generation in some families as a favorite
piece of cookware for "that special recipe". I still use pans that
came from my grandmother who received them when she was married over a
hundred years ago (yes-she was married in 1895 in Toronto, Canada.)
Mention
needs to be made of a cookware material that was popular over the last
several decades but is fading from use at this time. That material is
the various forms of glass. Tempered glass, such as Pyrex, has the
property of being able to withstand very high temperatures. Often,
though, these pans came with a small, wire "spacer" to keep them from
coming in direct contact with electric burner elements. As a result of
that same property, heat did not transfer quickly or evenly throughout
the pans.
I
grew up with a couple of these in my family. It was interesting to see
things cooking through the side of the pan, not just from the top. But
slowly these pans bit the dust in ways that I don't want to see again.
One broke on the stove when the hot temperatures from below met the
cold temperature of the frozen food that was inside the pan. The other
met its demise when it was dropped in a porcelain lined steel sink.
Hence, the end of my fascination with glass cookware. While we still
use glass baking pans for cakes, casseroles and pies, we don't use
those pieces on top of the stove.
Also,
through the years, it was also common to see porcelain covered steel
cookware, similar to the old coffee pots that you would see in cowboy
movies. This was done in an effort to keep inexpensive pots and pans
from rusting. But the thin metal and brittle porcelain often resulted
in dented pans and chipped porcelain leading to the very rust that the
owner was trying to avoid in the first place. So while they occupy an
interesting place in Americana, they are not used much in modern
cooking.
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(To see our selection of Enamel Cast Iron cookware, click here.)
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Today, porcelain, or enamel, coated cookware is pretty much limited to enameled cast iron
cookware. It is well received for all of the positive characteristics
of cast iron without the rust problems or seasoning needs of plain cast
iron. It seems to lasts forever, is attractive with many colors and it
makes terrific meals. If it wasn't for the fact that it is heavier
than most other cookware materials, I think that it would be more
widely used. I have a small Le Creuset Dutch oven that was
used by my mother over 50 years ago and it still does a great job for us for
dishes that need a slow roasted approach, such as a small pot roast.
Today
it is common to see most cookware made of either stainless steel or
aluminum. There seems to be a great controversy over the advisability
of Stainless Steel cookware vs. Aluminum Cookware. Here is some
information that might help you in your decisions.
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(To see our selection of Stainless Steel Tri Ply cookware, click here.)
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Stainless Steel
is a great material for cookware. It is an alloy that starts with basic
iron with up to 8 alloys added, depending on the quality. The major
alloys in stainless steel are chromium and nickel. The chromium
provides rust and corrosion resistance and durability. Nickel provides
additional rust resistance, hardness, and high polishing
characteristics. The numbers 18/0 and 18/8 refer to the percentage of
content of chromium and nickel. To be classified as stainless steel,
the metal must contain at least 11% chromium (no nickel required).
Stainless steel used in cookware is normally 18% chromium and 8% to 10%
nickel (300 series).
Low
end stainless steel cookware, mixing bowls, stockpots and accessories
are usually 18/0 (400 series), which are usually not highly polished,
and could be subject to some rust spotting.
A
simple way to test whether or not a stainless steel pan is 18/0 or 18/8
is to place a magnet against it. If the pan is magnetic, it is
18/0. If it isn't magnetic, it is 18/8 (or 18/10). The addition of nickel
neutralizes the natural ferrous properties of the iron in the stainless
steel.
Aluminum
cookware is very different than stainless steel. Aluminum cookware can
be formed either by pressing or by casting. Most aluminum cookware on
the market today is formed by pressing. Casting of aluminum is a slower
and more expensive process, however the end result is that the body
thickness is generally thicker than pressed aluminum, and the bottom
and the rims can be made even thicker than the sidewalls. This helps to
prevent warping, or going "out of round". Cast aluminum is also more
porous than pressed aluminum, which results in better heat retention.
When polished or coated, it is difficult to visually tell the
difference between pressed or cast aluminum.
Aluminum
cookware can also be improved by a process called "hard anodizing".
This is a Electro-chemical process which increases the thickness of
natural oxide film in aluminum, to give it a hard non-oxidizing finish.
The surface of the aluminum actually becomes harder than steel, which
dramatically increases the durability of the surfaces of aluminum. The
exterior finish after the hard anodizing process turns to a dark gray
color.
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(To see our selection of Stainless Steel Tri Ply cookware, click here.)
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Different
types of metal can be laminated or bonded together, to combine the
advantages of the different metals into a single cookware body. This
marriage of metals is often called TRI-PLY.
An example would be a 3 layer construction pan consisting of two outer
layers of stainless steel, with an inner layer of aluminum. This
incorporates all of the benefits of each metal into one piece of
cookware. The lamination of metals is done in the raw material stage,
in sheets, and blanks are cut from the sheets to be formed into
cookware shapes in a press. The entire process is somewhat costly, and
this construction is found only on higher priced cookware.
What
results is a pan that is extremely hard and durable AND has the
characteristic of distributing heating very evenly. This means that the
pans stay bright and shiny, are easy to clean and they cook evenly
without "hot spots". TRI-PLY pans are a great way to combine value and quality and provide great gourmet cooking with labor saving features.
So
if you are looking for new cookware, you have some thinking to do.
Copper coated, cast iron, enamel cast iron, stainless steel tri ply and
anodized aluminum cookware all provide great cooking and attractive
additions to your kitchen. But just remember, they are all designed to
help you make the best meals possible with the least hassle and with
easy clean-up.
Happy hunting!
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The Pots and Pans Store
Troutstream Trading Co. LLC
3287 Douglas Dr.
Sanford, MI 48657
Toll Free: 877-207-9092
© Copyright 2009 - The Pots and Pans Store
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