@clearbear, no. The only viabile microorganism in the slurry would be the yeast. That said, if you have some semiwhole rice grains you can add them with new rice and new balls/arl.
Procedure best practices update:
Start the rice out with cheese cloth covering it for the first 2-4 days (small enough holes that fruitflies can't fit, but oxygen can). Then put it under airlock with an aggressive yeast. When your bubbles are more than 14 seconds apart, you can go ahead and strain, pasteurize, and rack it. It's cutting my brew time down by 2 weeks.
Procedure best practices update:
Start the rice out with cheese cloth covering it for the first 2-4 days (small enough holes that fruitflies can't fit, but oxygen can). Then put it under airlock with an aggressive yeast. When your bubbles are more than 14 seconds apart, you can go ahead and strain, pasteurize, and rack it. It's cutting my brew time down by 2 weeks.