Finely ground weed is essential to roll, pack and smoke a joint or a roll. A grinder or shredder is a simple smoking accessory used to make this task easier, i.e., grind down cannabis. However, the same may also be achieved with your bare hands if you could ignore the fine, consistency, time consumption, and cleanliness factor. The fascinating thing about a grinder is that you'll be hooked if you try it. A grinder makes grinding cannabis smooth and is a more sanitary experience than hand-grinding it. It's also worth noting that while some grinders are used solely to grind marijuana, some may also be used to store and isolate kief.