Re: how often should we re-oil the blade?
If you do tameshigiri with your blade, wipe off your blade immediately after each mat you just finish cutting. Apply some mineral oil before each noto/sheathing. Basically keep your blade oiled at all times. Wipe off blade and reoil in between each mat you cut. And after your cutting session is over, wipe down blade, apply Noxon (pick up at Home Depot) to entire blade surface (Noxon helps stop any rusting that may start happening from result of cutting soaked tatami), then wipe Noxon off of blade and reoil with choji oil before sheathing sword and putting sword away.
If your sword is not being used for cutting or won't cut at all and only sees kata use, then just wipe blade down after practice and oil the blade up with choji oil and then put your sword away.
If your sword doesn't see use at all, the blade makes no contact with skin or anything else and just sits on display and you take out every now and then to look at, then just the occassional wipe off old oil and reoil with choji oil will do fine.
Last edited by Walter Wong : 10-19-2005 at 01:45 PM.