I wash my Gi after each practice. I dry it in the dryer and hang it up for the next days class. I began to notice a stink or rancid sweat smell while rolling. At first I thought it was the other guy. Then I noticed it was coming from the collar of my gi. The thick cotton collar of the gi wasn’t drying out even in my dryer. The moister mixed with my sweat, the rubbing against the back of my neck, and of course hands being put in my collar were starting to breed bacteria. I first tried rubbing some baking soda on it. That had no effect. I then tried Febreze (Sport Extreme Odor Eliminator). After a washing the smell was reduced but not all together eliminated by the Febreze. After searching around I found a few posts on using OxiClean. I soaked my gi top in the washing machine overnight and then put it through a normal cycle after that. It came out smelling fresh and new. Thank you OxiClean! No more stinky gi! I understand that bleach is another alternative but that it substantially reduces the life of your gi. My gi is blue and the color remained the same after the OxiClean.
Once again I am enjoying rolling at Jiu-Jitsu.