Four different cans (or tins) of<unk>  (from bottom left, clockwise): Skoal straight, Skoal long cut mint, Copenhagen straight, and Copenhagen long cut. Copenhagen brand American<unk> .<unk>  is packaged in "tins" or "cans", although they are not typically completely metal any more.<unk>  is also available in "rolls", "logs", or "sleeves", which is a package of 5 tins of<unk> , a similar concept to that of a carton of cigarettes. Ten tin rolls were also available in the past. Another package of<unk>  is the "tub", available in only select brands, equivalent to 6, 10, or 12 cans. Before opening the can/tin of<unk> , users typically "pack" the can, similar to how cigarette smokers pack a pack of cigarettes. This is done by placing one's thumb and middle finger on the sides of the can, and then quickly turning the can and flicking the wrist so that one's index finger taps the top of the can. Unlike snus, which is most often placed between the upper lip and gum, moist<unk>  users or "dippers" tend to use the lower.<unk>  in the upper lip is unusual, though when done, it is colloquially termed an "upper decker" or "top lip dip". The dip rests on the inside lining of the mouth for a period depending upon the user's preference—often 20–40 minutes. Nicotine and other alkaloids found in<unk>  are absorbed in saliva sublabially by the inferior or superior labial arteries. Buccal and sublingual absorption may also occur. Also unlike snus, dip often causes the user to produce excess saliva during the act of<unk> . This is typically spit onto the ground or in a container, because swallowing the saliva-tobacco mixture can cause irritation to the esophagus and induce nausea and vomiting. A spittoon can be used, but often users will simply use an empty plastic bottle or a "mudjug," a portable spittoon. Smokeless<unk>  is sometimes used in the workplace by employees, especially if the employer does not provide many cigarette breaks or if the employee is consistently using both hands during work (which doesn't provide opportunities for cigarette smoking). Smokeless<unk>  is popular in many industrial areas where there is a safety risk in having an open flame, such as oil rigs or refineries.
Dipping tobacco
Roll-your-own cigarette
Chewing tobacco
Herbal cigarette
Electronic cigarette
Indoor tanning
Ventilated cigarette
Rubbing alcohol