So I just got an order from a vendor where I picked a 20/80 PG/VG mix for 3 5ml bottles of menthol. I had ordered several flavors all in the same mix so I just kept it when ordering the menthol. It came and had large chunks which I am assuming are undisolved crystals. I can't blame the vendor because I am the one that picked the ratios. I did pop each one in the microwave for 5 seconds and the whole solution turned to liquid and the chunks dissolved but it started getting chunks back in it by tonight. I looked through other threads to see if there might be a way to fix this. All I could find was ways to prepare the crystals before mixing in the VG mixes but nothing about what to do to fix it. Would some PGA added to it to dilute the mix and dissolve the crystals? And if PGA would work, how much would it dilute the flavor? Any other suggestions? TIA