Gold is inert and it can be consumed because it’s indigestible and can be excreted outside the body without absorption. So it is not harmful for consuming along with sweets. It’s used over sweet for aesthetic purpose, garnish or luxurious. Silver is reactive metal and consuming it may cause health problems due to accumulation silver ion in the body. But still used as silver paper on sweets. Purpose of using it is its function as anti-microbial. As a result, it extends the shelf life of sweets. How to manufacture ? Firstly, we melt the gold or silver metal at a very high temperature, and cut it into small slides, These tiny slides are further passed to rolling mills and convert it into thin gold / silver ribbon. The thickness of ribbon is equal to our single hair thickness. This ribbon will be cut into small strips and stored. These strips are packed one by one in between specific type of papers which are made of sheep skin. And those sorts will...