I think everyone pretty much gave the best advice , but hash is a vauge word , some people say bho and iso are hash , But they deserve there own category so I say theyre a concentrate . if your looking for the highest , tasting , just pure goodness , well bho . you could do iso... but I find its only as good for smaller batches like 14gs and less at a time , and you need to soak it for like 5 seconds , the lower you leave it in the more its golden.
easiest way would be to make pressed kief hash , thats what ''hash'' is . just grab a silk screen or grinder , and shake the shit out of it freeze it first or put dry ice in the screen sifter you want for more kief. I think they call them kief boxes .
best pressed hash though is bubble hash , you can control how small you want the holes to get thinner stronger kief that bubbles and melt . good hash normally bubbles and melt