Bernard Arnest said:
I bought my cookware at walmart, where everything was cheap but
suspiciously thin and light.
Thin and light does go with cheap, check. Works great
for, uhm, thin-crust pizza, but not really for cookwear.
Quoted message said:So when it came to a frying pan, I bought
the cast iron one, assuming that the extra metal should distribute heat
better.
Partially correct. Cast iron is a mediocre heat
conductor so once it absorbs heat it releases it over
time. Thus the heat distribution is both across the
pan and also across time (slow temperature change
response).
Quoted message said:To double-check, does cast iron work for everything that a regular
pan works for, or is it somewhat limited in application...?
Principle: Use the right tool for the job. Result:
A different pan for every recipe. Gadget freak's
dream.
Principle: Make it work, make do, do without. Result:
One pan is fine. Use it.
In reality you'll eventually end up with a few types of
pans to cross the range of temperature response rates.
Some very high conductivity for sautee, some very low
conductivity for baking beans, some in between.
Quoted message said:Also, for hte future, what's a good value in price vs. performance?
Cast iron is inexpensive and lasts forever. It is a
very good starting point. Branch out over time to
other materials. For example, ever since I could
offord houses that came with dishwahsers I've become
more and more interested on pans that are dishwasher
safe with interior and exterior coatings of stainless.
Quoted message said:And, can you take any cheap pot and weld a thick plate of steel,
aluminum, brass, or even copper if you can get it to the bottom and
instantly enhance it...? :-)
You'll even be able to submit it as your lab project
for Mechanical Engineering Lab 1-A. Chuckle.
The problem is hot spots. Heat will tend to build up
at the point where the thermal conductivity changes.
Add a high conductivity plate (Cu, Al), it wicks the
heat to the edge and a hot ring develops. Add a
mediocre conductivity plate (cast iron, steel) and
you will tend to reduce the responsivity.
Quoted message said:Bronze is harder than copper, why is not not used for pots as well?
Just curious, so I thought I'd ask.
Bronze is used. Copper is coooking contexts means
copper alloy not pure copper. Technically it tends
to be brass (Cu, Ni alloy) not bronze because tin
is toxic. The same is true in coins - Cents haven't
been pure copper since the 1700s and they have been
only coated since 1982.
With brass aka copper, there needs to be a chemically
inert lining like stainless steel or nickel because
copper is toxic.