i used actual graves grain alcohol, 190 proof, which is made to be ingested... certain types of alcohol though you're definitely right about not wanting to ingest
i took about 25 grams of ABV in a mason jar and poured in some 98% grain alcohol, just more than enough to cover all the weed so it would float freely (next time im going to use more grain though)
i left it in the jar for 3 weeks, shaking every night or every other night... finally i strained...