this isn't a magic bullet, but;
Rapid Steeped Juice
1: get a tea cup/coffee mug or some other vessel that can handle HOT water, place a bottle of juice into the vessel.
2: boil some water.
3: once the water has come to a boil, remove from heat & wait about 2 min, to let it cool to around 180
(perfect temp if you want to make yourself a cup of green tea while you wait)
4: pour the hot water into the vessel to just below the level of juice in the bottle
(you don't want the bottle to float)
5: wait about 5 minutes, remove said bottle from the vessel and shake the

out of it.
6: put the bottle back into the vessel with the hot water & wait another 20 minutes to half hour.
7: once the water has come to room temperature, remove the bottle & pat dry
(be careful not to damage the label any more than you already have).
8: once again, shake the

out of it.
9: open the bottle & vape
NOTE: this approximates 3 to 5 days of steeping, sort of. I only do this with 5 & 10 ml bottles to quickly get a better idea of the flavor. There is no substitute for time*. The Rapid Steeped Juice will still get even better with age. I am sure that this method somehow negatively effects the juice in the long term (but nickle & dime bottles of tasty juice don't sit around here very long)
* However, I have found Thyme can be substituted for Oregano with just tiny pinches of Mint and Rosemary.