There are several ways to make hash.
Soaking stems and branches wont give you good hash at all it will taste like shit and will be very harsh on the lungs.
However soaking buds ruins the weed you used. It takes alot of herb to make hash.
My favorite method is probably collecting what people call Kief(its basically just thc crystals that falls off your herb if you have a grinder with screens its easy) in my grinder then pouring it evenly out on wax paper.
I then get a iron on very low heat(Thc evaporates at 200Degrees) so make sure its low low heat.
Fold your wax paper over so you have paper on both sides of the kief then apply the iron.
It will form like a stick of chewing gum.
When its still warm I fold and make chunks.
Usually get 2-5grams of Kief(Hash) out of a oz.
Thats me smoking the herb out of the grinder and just using kief and is probably the best quality and most rare.
Thanks
Jack

P.S. Google search it there are some nice videos out there.
HighTimeStoner Reviewed by HighTimeStoner on . making hash!!!! looking nfor some knolage on the art of hash making. heard that you cot the stocks into pices and soak them graves grain alcohol 190 proof for 15 to 20 min and the good stuff floats to the surface . and you keep rinseing with the alcohol ,then poured into trays and let to evaporate and once evaporated youe left with product,has anyone heard of this method. and are there other methods. Rating: 5