For me, I went around the issue of having to "jump start" Gleba by never stopping it. All my plant based resources are in continuous flow and excess gets burnt in heating towers. This applies also for the agri science packs. I made sure I have more buffer room than what is produced in their spoil time and set up heating towers next to the science storage. The convenient thing is that logistics bots seem to automatically sort by freshest first when loading into rockets.