Yes, I talk heated distilled water and pour it over my oats that are in a strainer sitting over a pan. I leave the strainer sitting in the heated water for about 20-30 minutes, come over left out the oats and use the water.
Warning, sometimes the oat milk will become very thick when you pour you lye in but just keep string and it will loosen up. Sometimes this doesn't happen so I just wanted to warn ya so should you give this a try you didn't think you had something wrong....
Enjoy, believe me once you make soap with this method you will never just use water for your liquid again....LOL