Liquid laundry soap that does a lot using only 3 ingredients, cleans and softens

1 detergent of 500ml blue (preferably Minuano)
2 liters of water at room temperature

The necessary tools

1 very large plastic bowl
1 grating
1 sieve
1 tablespoon of wood or a large spatula
non-food blue coloring (optional)
Pet bottles (to be stored)
1 funnel

Method of preparation
From the first phase

In the plastic bowl, grate the soap on a fine grate.
Add the boiling water and stir well until completely melted.

From the second stage

In a pot put the soap powder and the boiling water and stir until it melts well.

From the third stage