Place another bowl on the scale and tare it, then add the required amount of herb-infused water. Put the bowl on your stove and turn on the hood fan.
Carefully pour the lye into the bowl of water (not the other way around), then stir with one of your metal spoons (put the spoon in the sink and rinse it when you’re done).
The mixture will start heating and putting off fumes. Make sure you still have your gloves and eye protection for this..
Fill your sink with cold water. Carefully put the bowl with lye solution in the water to cool it down to 110 degrees.