Melt your shea butter down using the double boiler method. Put the shea butter in the double boiler on low to medium heat. The double boiler should be resting on a pan filled with water.
Since some grains have a higher melting point than others, it may take you a while till all grains have melted completely and you achieve that desired liquid consistency.
Once the shea butter is totally liquefied, transfer your butter to a jar and put it in the freezer for 30 minutes. The point here is to quicken the whole cooling and solidifying process, which will prevent the formation of those grainy bits.
Once your shea butter has solidified completely, take it out of the freezer and store it in a cool place, away from heat and moisture. You might want to consider keeping the butter in the fridge (not freezer) if the place you live gets temperatures above 75F. This will help the shea maintain its smooth texture.
You can also decide to whip the shea butter with an electric mixer. If you want to whip it, wait another 30 minutes until it starts to soften a bit and whip for 2 minutes.
Note: Be sure to store your butter or whipped body butter products in an airtight container, away from sunlight or heat. This will help extend your products’ shelf life.