I vape all VG and had some go bad in a few months in my toolbox indoors, so for the last several months I put some in smaller bottles and the rest in fridge in a freezer weight zip loc bag and they are lasting with no problems now. I do let them steep for a month before putting in the fridge. I also let them come back to nearly room temp and shake well and add to smaller bottles. I have not noticed any change in flavor and they are lasting longer.
