For soaking and sprouting times of other grains and seeds, please check here.
When you are brewing, watch for mold, fruit flies, or a strong rancid smell. If any of those occur, dump your concoction. It’s no good.
Rinse your jar with boiled water and start again.
Once you’ve brewed a batch or two, you will recognize the difference between a bad smell, compared to the unique Rejuvelac smell.