Q: Is it safe to cook all foods in a tin-lined (kalai) copper handi?
A: Yes. Pure tin lining acts as an inert barrier, making it food-safe for cooking acidic curries, tomatoes, tamarind, or milk-based dishes without metal reactions.
Q: Can I use this handi on an induction stove?
A: No. Pure copper is non-magnetic and will not work on induction cooktops unless used with an external induction converter plate. It works best on gas stoves.
Q: Can I wash my copper handi in a dishwasher?
A: No. High heat, harsh detergents, and prolonged water exposure in dishwashers will strip the inner tin coating and heavily tarnish the copper exterior. Always hand-wash.
Q: Why is my copper handi turning dark or black on the outside?
A: Copper naturally oxidizes when exposed to heat, air, and moisture, forming a dark patina. Clean the outside with lemon and salt, tamarind paste, or Pitambari powder to restore the shine.
Q: How often does the inner tin coating (kalai) need to be redone?
A: Depending on frequency of use and cooking habits, re-tinning is typically required every 1 to 3 years once the inner silver layer wears away and bare reddish copper shows through.
Q: Can I use metal spoons or steel scrubbers inside the handi?
A: No. Metal utensils and steel wool will scratch and strip the soft tin layer. Always use wooden or silicone spatulas and clean with a soft foam sponge.