There are special jars made for forcing hyacinth. I don't have one so I just planted the bulb in dirt, watered it and put it in the fridge. It stayed in the fridge until buds formed, (about 6 weeks) then it was put under lights and is now blooming and perfuming my kitchen.
Note that hyacinth bulbs can irritate your skin so if you are allergic to these bulbs wear rubber gloves or wash your hands after handling.