What is an Oshibori?
L'oshibori is simply a wet towel meant to clean oneself in the absence of running water. In general, it is known to bring comfort and is a sign of excellent service. It is common to see it served in Japanese restaurants, bars, airports and even long-distance trains (like the Shinkansen). A oshibori are also served on JR Express trains throughout Japan.
In simple terms, an oshibori is a small white towel that has been soaked in clean water (cold or hot). The water is then wrung out, allowing the towel to remain wet, but not dripping. It is then folded or rolled and placed in plastic bags or containers to keep it moist.
The client can use it either to clean their hands or to comfort their face in the summer (cool towels) and winter (warm towels).
In the early 1600s, oshibori were popular in tea houses. They were offered to travelers who stopped at teahouses to rest after a long journey. Considered a heart-warming gesture, this custom easily spread throughout Japan and remained there for centuries. It is now considered one of the standard gestures of hospitality in any Japanese establishment. http://yabai.com/p/4164