Here we show a sequence of tincturing a 50-gram piece of ambergris. The tincture is to be 10% by weight such that I need to add 450 grams of ethanol. Because ethanol has a specific gravity of around .8, the total volume comes out to somewhat more than 500 ml. It’s more like 600 ml.
While ambergris will dissolve in alcohol at room temperature, this may take several days—especially with such a big piece—those impatient people among us may want to expedite the process by heating the container of ambergris in a water bath set over the stove.