It will stay reconstructed if it's normal dosed gear if it was brewed right. But high mg stuff like npp200 and dhb ya you may have to reheat each pin.I've heard you can mess gear up by reheating crashed gear and it usually ends up crashing again. That is my experience with crashed gear. Super annoying. Had to reheat that shit before every injection.
Some of the gear I've had hasn't even crashed when I tried to make it crash on purpose by putting in the fridge.
Not sure I feel like risking getting 50 crashed vials to save a few bucks. Maybe when it gets warmer.