Creating dry ice fog is as easy as filling a metal or plastic container partially full of warm or hot water and adding pieces of dry ice to it. The more water and dry ice you have in your container, the more fog will be created. However, it is important to note the hotter the water that you use, the more fog will be created but the quicker the dry ice will dissipate.
A good rule of thumb is one pound of dry ice will create 2-3 minutes of fog effect when placed in warm water. So, plan accordingly! Also, always use safe handling practices when using dry ice to create a fog effect. Us tongs and cotton gloves to protect your hands from cold burns. Dry ice can be dangerous if handled improperly so never touch dry ice without protection.
An additional safety consideration when creating dry ice fog is to be in a well-ventilated room. Because dry ice is an asphyxiant, do not allow children or pets to lie in the fog. For more Halloween Dry Ice Safety tips click here.