Ask three workshops for "brass" and you may receive three subtly different alloys. Brass is a family, not a formula — copper blended with zinc in ratios the smith chooses for the job.
The spectrum runs red to yellow. High-copper blends (red brass, closer to gunmetal territory) work softer, colour warmer toward rose-gold, and resist corrosion slightly better. High-zinc blends (yellow brass) polish to the bright school-bell gold most people picture, machine harder, and cost less because zinc undercuts copper.
What the ratio changes for cookware:
Workability — softer high-copper alloys take hammer detail beautifully; that's why decorative pieces often read redder. Harder alloys suit stamped, uniform production.
Colour after polishing — the showroom gold shoppers expect usually means zinc-forward alloy. Redder pieces look "antique" even new, which suits certain aesthetics and confuses others.
Corrosion tendency — higher zinc content can be marginally more prone to dezincification in harsh conditions, though indoor kitchen life makes this academic.
Neither end is superior. A working vessel wants durability and even heat; both alloys deliver when hammered properly and lined correctly. What matters more than ratio: wall thickness honesty, hammer quality, and a clean kalai.
Practical takeaway: colour tells you the recipe, not the quality. Judge quality by weight symmetry, facet consistency and lining — the things craft actually controls.
Three brass samples ranging from reddish to bright yellow gold.