Hash is created in a few different ways depending on the type of hash you choose. The most common and easiest to make is dry sift. Dry sift is made by separating the trichomes from the plant material using mesh screens to isolate the powdery kief from the plant.
There's also bubble hash or ice water hash, which is made using ice, water and a series of mesh-screen bags to freeze and filter the trichomes off the plant material. You can also find other forms of hash made with solvent extractions which tend to be the strongest and purest forms.
Hash easily crumbles into small pieces or can be chopped into small bits using a pair of scissors. If you want to use it in a joint, sprinkle the pieces on top of your cannabis flower when rolling. Similarly, you can top a pipe or bong bowl with hash, or you can smoke it on its own with accessories like these.
Another method of consuming hash is hot knives. This method of smoking hash will feel nostalgic for older cannabis users and requires a few tools. You'll typically use two metal knives and a hot plate or a stove with an exposed element to heat the knives.
Place the knives on the heat source until they turn a bright, glowing red and very carefully place a chunk of hash on one of the knives. Use the other to sandwich the hash between the two red hot knives and suck the smoke in with your mouth. Alternatively, you can also use a straw to make sucking the smoke into your lungs easier.