I strongly suspect (I can't say for sure because I've never asked them!) that BIRs use aluminium pans mainly because they are:
If anything, aluminium pans also seem to have the property of being relatively "nonstick" to me (which, I presume, is another "attribute" for their use by a BIR).
All pan materials have attributes which make them more or less suitable for the task at hand. But I strongly suspect that any pan (including nonstick pans) will do the job more than adequately.
I, for one, can definitely "caramelise" (or read "burn"!

) anything in any pan, without too much trouble!

The following link it is to a good website for understand some of the engineering aspects regarding materials selection:
http://www.cookingforengineers.com/article/120/Common-Materials-of-CookwareTo me, it seems far more important to match the size of your pan (of whatever material used) with the size of your heat source, with the volume of ingredients that you are cooking.
Spicey:
"Pans", "reduction" and "caramelising" have been mentioned regularly, over the years, on this forum. Unfortunately, many members will not bother to reply to threads on topics that have been discussed several times before (and who can really blame them?)
But I think you are right about one thing in particular. This forum has been particularly weak (in my opinion) in adequately defining the term "technique" (a term regularly bandied about but seldom defined) used in BIR (or any Indian) cooking.
I've tried, several times, to solicit inputs and ideas about "techniques" but, largely, to little avail. I reckon I could have a fair stab at it...but I really can't be too bothered. Here are a couple of examples:
https://curry-recipes.co.uk/curry/index.php?topic=1283.0https://curry-recipes.co.uk/curry/index.php?topic=4069.0I think it's probably because members have largely not been able to even recognise (or even identify) specific "techniques" and have otherwise been largely unable to articulate them.
Regarding Paul's comments about "understanding" - like you (and I'm sure many other members), I also like to understand the reasons (i.e. the "why?") for doing things. However, as Paul says, life is generally not like that. Things are done, the way they are done, because that is how they were shown to be done! Very much "Monkey see, Monkey do"!
I would be pretty sure that most BIR chefs would not actually know WHY (I mean
really why?) they do things the way that they do.
PS: you might get a better response from forum members if you came across as slightly less combative Spicey (now THERE'S the pot calling the kettle black! :

)
