anyone with ph papers is invited to verify that blowing through a straw into water makes a <ph6 solution very easily. They are also invited to verify that blowing through a piece of NPS proof tube into some water in the same jar as some mesc containing limo and then removing and evapping the water will result in fluffy white powder clumps. Additionally, at their own risk, anyone who does such a thing is invited to verify the rainbows they will see about 2.5 hours after eating said powder. it takes a few more saltings than hcl to get all the goods out, but if you are concerned with "food safe" or just trying to find a clever way to get alks out of NPS its a fun thing to do. good luck and be safe!