I've been experimenting with storing some mixed juice in the fridge at 2 degrees C. I'd been told that it would separate but so far that hasn't happened and it's been about 2 months. It's a commercial juice called Jam Monster Rasberry - 70/30 VG/PG 3mg/ml nic.For your mixed juice? No, that is not recommended nor is the frig. The coolest place in your house is fine and keep out of the light.