Hydrosols and PH

I purchased a good PH meter to test my hydrosols to make sure they are good quality.  I am slowly testing all of my finished ones and testing new ones as they are produced.  I made a distilled version of the famous Queen of Hungary Water today and when all was said and done the PH was 4.7.   Everything I have tested so far falls within the proper range so, I guess, I'm doing this right.  I have loved them on my skin so I would have been devastated if the PH was wrong.  Here are my findings so far:

Calendula-6.0
Sandalwood-5.8
Queen's Water-4.7
Witch Hazel-4.2
Cucumber-4.7
Lemon Balm-4.8

I'll keep adding to the list as I test but so far, so good.  I now feel more comfortable listing these for sale-most will go on Hyena Cart and Artfire where I can offer a variety of sizes.

I will attempt to harvest Lemon Balm tomorrow and do it, I have an organic ginger root in the fridge waiting to become fabulous water, and I have roses on the verge of blooming (no this in NOT and April Fool's Day joke!).