My question is about cotton. Do I need to boil it of buy some special type? I have regular cotton balls already, I am hoping and can just use those. Also I noticed on the reo website they sell silica wick, would you use that instead of cotton? .[/FONT]
Organic cotton balls work. The disadvantage is that it's a little harder to feed through a coil. Cotton from facial pads made by two or three Japanese cosmetics companies has all the fibers facing the same direction (it's combed before it's pressed in to a pad). Those are easier to deal with for wicking.
SuperX has some great videos regarding that.
Silica... the advantage is it doesn't burn - ever. You can take a blow torch to it and it won't burn. It's the exact same stuff they use for fireplace and wood stove doors. The disadvantage is that it doesn't pick up as much juice as looser wicking material like cotton. And, you don't re-wick nearly as often so it can tend to gather caramelized juice or burnt juice so the flavor deteriorates the longer you use it.
ReadyXwick - the advantage is it also doesn't burn... and though in theory one might argue that it can collect caramelized juice because of rewicking less often like silica, it's hollow woven, so it can be removed from a coil and cleaned and then re-used. So, the caramelized juice and burnt juice collection is a moot point once you know how to use that stuff.
Personally, I use the KGD Japanese cotton and I like it. It's easy to work with and always provides excellent flavor.
Cotton balls work - harder to run through the coil and tends to have lumps and / or thin spots.
Pad cottons - all the fibers run the same direction - easier to work with but needs to be changed with new wick fairly regularly.
Silica works, but can get dirty... plus it is already pretty dense stuff like rope so it also doesn't wick all that efficiently.
Readywix won't burn and is woven hollow so it's strong and easy to work with. The hollow makes it collect juice very well. It's expensive by by all accounts: It is probably worth the price tag