Good luck with invitro,
IMO get a drill and holes and built a Shotgun Fruiting Chamber.
The dunk is necessary for a good flush. I would just clear the verm and fill the jar with tap water for 24 hours, changing out the water every 8. Mushrooms are 80-90% water, they will benefit from this.
If not open it from the top, clear off the verm and add a fresh layer. Mist it when it's dry. This will help create a microclimate that will stimulate pinning.
I've been growing shrooms for years, invitro will cause you to either break your shrooms or smash the jar getting them out.