Hows does this type of cotton compare to Rayon guys, never tried it.
I have Rayon, some people say it has a taste, but I did not experience that. But I found it harder to use than say rolled cotton balls from Swisspers. I have found Japanese Cotton sheets easiest and quickest to use. Most Japanese cotton sheets are stranded in one direction, especially the water woven ones. Cut in the stranded direction, to the width needed and pull through the micro coil. No need to twist or roll like you need to with cotton balls, even rolled cotton balls. Some Japanese cotton sheets just kind of fall apart, when you go to use them.
I have tried a lot of cotton balls(my wife will never run out of them now), cotton yarn, Japanese organic cotton yarn, Japanese organic cotton sheets, cotton butchers twine(some people pass this off as 3mm organic cotton wick), organic cotton twine, flat braided cotton wick, square braided cotton wick, twist cotton wick, etc. I won't say Shizen is the best. But it is easy to work with, has no taste and when I partially melted the insulator in my Orchid and the switch head in my Roller, the cotton was not burnt. Besides, after the juice makers told me about it, that kind of worked for me.
I have found it in a few shops around Long Beach, CA., so I don't have to order something unknown to me, online.