Gas cylinder
One of the most popular foods in winter is Nabe cuisine or a dish served in pots. Sukiyaki, a sort of Nabe cuisine is more familiar to foreigners. People sit around the pots and help themselves relishing such ingredients as chickens, sliced beef or pork, seafood, vegetables and so on. The Japanese people like this kind of self-cooking style food among the members of families or friends because they can eat food while it’s hot. They can also enjoy cooking itself and talking at the same time. Above all it’s convenient for housewives not to make good preparations for dinner. If you have Japanese friends, you may be invited to Nabe home parties.
To do this kind of home parties, you have to bring a cooker on the table. Convenient is a potable cooker which cassette-type gas cylinder is set in. As long as the cylinder is full of gas, needless to say, it’s risky if you wrongly deal with it. Even though you think you use up, some gas may remain in the cylinder. It’s still risky, especially in crashing the gas cylinders as you habitually do that.
Portable gas cylinders are also useful for barbecuing outside. This usage is perhaps much more frequent. Today's nature-oriented moods drive people to go to mountains or forests. They enjoy nature and natural food there. Barbecuing is one of the ways to experience such natural feelings. It's rather popular nowadays to use portable gas cylinders in the replacement of charcoal. When it comes to setting a fire, charcoal is sometimes difficult to start firing. Although charcoal has advantages in lasting and cost, we feel troublesome to keep watching the flames of charcoal not to die.
One of the disadvantages in the convenient gas cylinders is to waste many bottles of cans because you have to feed many members of families or friends even friends' families in barbecue. If you carelessly put one of used-up gas cylinders near fire and it remains gas unfortunately, you might get explosions by the remaining gas. Pleasant barbecue parties may turn to be tragic.
Back to the scene in houses, hairspray is the same category of gas cylinders. It’s also risky. Flon was once used for one of the constituents in hairsprays. But the recent environment-friendly movements have deterred the spray manufacturers to use it for the reason that the constituent will destruct ozone layers. Instead, the manufacturers started using combustible LPG(liquefied petroleum gas) for hairsprays. There also occurred some accidents related to the disposal of hairsprays. Since the gas became more combustible, if you put near fire, you may get injured.
According to the Tokyo Fire Department, there were 158 cases in 1999 connected to cassette type gas cylinder or hairsprays. Although how to dispose of these cylinders depends on city offices, Tokyo(23 wards) started instructing the users to dispose of used-up cans without crashing them.