How do you mix / grind the activated Charcoal for Ruben in the kitchen?

You have to weigh the bags together to add up to 130. I was adding each individually against the weights. A new day brought understanding.

Once you have the charcoal and the pestle and mortar you need to place them on the center counter in the kitchen, then view them.

First use the scales by placing the bags and the weights on each side until you get the green light to tell you what each bag weighs.

You then follow the instructions and place the correct amount (you need to pick the right bags) in the pestle.

Use the pestle to grind it and then drag it to the glass on the right.

Tap the spoon to stir and you are done.