Depends on your juice. Not super sweet fruits, maybe up to a week.
Super sweet desert, custard, caramel maybe 2 days.
Try an atlantis or triton coil, imo those are better tasting and have a larger barrel for more air flow and more clouds.
Edit: D2 doesn't TC stainless so tritons are out. Try a Ni atlantis coil next time you need to re-up on coils.