1- Table salt. It is often mixed with iodine (and called iodized salt) and often contains anti-caking agents. – Many people prefer it to the regular table salt. – 2- Pickling salt. It is a fine-grained salt used for pickling and canning. it contains no additives, such as anti-caking agents, which would cloud the brine. 3- – Indian black salt (kala namak). Brown-to-black in colour, it has a smoky, sulphuric flavour. Used in some of our Indian preparations. 4- – Rock salt. Grayish in colour, it is an unrefined salt, containing many minerals and impurities. Supposed to be inedible, it is used in ice cream machines and for melting ice and snow on the roads.