They now have a digital scanner ( like X-ray machine), which can scan the gold and tell what carat it is.
Quite fast. Technology is making the things scalable.
This melting machine is also pretty costly and the price is based on capacity. But its good to see such niche machines being available that can melt the gold in 5 minutes, which guarantees a fair exchange price to you. And finally it came like this - a tiny gold biscuit.
Wonderful. Indeed very transparent, Everything is executed in front of your eyes. And 5 mins is super fast compared what traditional method we followed in the previous decade.
I was overwhelmed to see such advancement in the exchange process - flawless. They weighed before the melting and the scanner showed everything as 22 carat and the biscuit exactly matched the weight - a very tiny impurities in milligrams.