Hey, I think you may have me confused with someone else. I have used Greencure (didn't like it), but not baking soda for PM. I've used milk and JMS Stylet oil. Milk is a 10% solution, JMS is as per directions. With the baking soda I'd just test the pH until it hits 10, I know lots of others who do this but not specifically *how* they do it. HTH!