How to turn table salt at home into large crystals?

To turn table salt into large crystals, you need to prepare: Petri dish, beaker, water, salt, stirring rod.

1, first take out a beaker, pour the right amount of water into the beaker to be used, see the picture below.

2, then take out the salt, and keep adding salt to the beaker, as shown in the picture below.

3, the following constantly stirring the solution inside the beaker, until the beaker is not dissolved salt, see the picture below.

4, then take out a petri dish, the beaker of saturated salt water poured into the petri dish, see the picture below.

5, the following will be placed in the petri dish on the balcony for ten days can be, see the picture below.

6, finally you will be able to turn the table salt at home into large crystals.