Vape Juice not fully clearing

[froggydays]

I use a small cup, place the vial in it, then add boiling water up to the neck and let settle and stir occasionally with a metal rod.

I use regular food grade citric acid as far as I know.

I read in another post you can dissolve quite a lot of citric acid in this way supposedly, I think up to 250mg in 2mL or in that range.

 

[TransistorBass]

Good to know
I was using regular food grade Citric acid too, it looked exactly the same as the old Homebrewer's Citric Acid i used before totally fine.
The Anhydrous Citric Acid did dissolve better, even without powdering it with a pestle & mortar.