I am looking to take a basic butane shatter, decarb it, and turn it into a sublingual/oral tincture with ethanol and/or mct oil. The main problem I am running into is that I do not currently have access to a functioning oven for decarbing. I was considering using a double boiler to hold my mct oil at 212dF, however this limits me to mct based tincture. I would like to produce sublingual tincture as well with ethanol. Does any one know of a reliable method for me to decarb hash oil on the stove-top?