To understand the basic differentiating qualities between weed vs hash you need to know how hash is made. Technically, before you learn how hash is made you need to fully understand how to cultivate cannabis first, but we’ve got other guides on this subject that can fill you in.
The basics of making hash (hasish) involve separating resins and oils from the plant material that can be coagulated into bricks or balls of high-potency cannabis concentrate. This is essentially how hash is made: mechanical or manual extraction of the resin from cannabis flowers that is then pressed into convenient forms (bricks, balls, discs, cubes, etc).
Mechanical separation means extraction by means of equipment, typically dry-sifts that is rendered into a final hash product through a hash press. Manual separation is simply the traditional means of rubbing resins from the plant materials by hand – a practice that is still very popular and equally viable today. This ‘hand rub’ hashish typically comes from the Middle East and Eurasia (Morocco, Afghanistan, India, etc) but these kinds of hand-rubbed hash practices have become popular all over the globe.
Many would-be hash makers start by rubbing resins and oils from their homegrown cannabis flowers and eventually upgrade to dry-sift or mechanically extracted hashish. Some people prefer hand-rub over other types of hash while others find the practice to be outdated.
Modern mechanical extraction of resins usually involve chemical separation or other extreme temperature controls. Butane or other gasses can be used to essentially ‘blast’ the resins from the plant material, achieving very high potency numbers in the 70-90% thresholds. This kind of hash production does involve some risks from chemical residues or the dangers of handling high-pressure, flammable gasses. Nevertheless, the yields speak for themselves – 90% THC potencies are enough to turn many hash-heads to this kind of extraction method.
There are also some proponents of ice-water hash extraction. This isn’t really a “mechanical” or “chemical” separation methodology, but it certainly involves manipulating resins and oils through changes in temperature so it kind of fits. Ice-water derived hashish involves submerging cannabis flowers in ice-water in order to freeze trichomes and resins, making them easier to separate from the flowers. Once extracted into the water, sifting and screening will collect those precious active compounds which can be rolled or rubbed into a final hash product.
Any of these hash weed types can produce high qualities and high potencies, it’s mostly just a matter of what fits your budget or what suits your cannabis skills/knowledge.