I have built a base and am slowly producing "Makeshift biorecycling science packs", trying to complete the "Hardcore Biorecycling" technology. The tech info says I need to make 1,000 of these suckers to complete it. I have made 1,090 of them so far (according to the stats on the Biorecycling Plant) and the tech still hasn't completed. Of course, about 975 of them have spoiled already, so I don't actually have 1,000 at the same time in my inventory.

What do I need to do to complete this technology?

Oh, and how do I check how many the tech thinks I have completed?

The requirement you see on that tech is not “Craft 1000 Makeshift Biorecycling Science pack.” It is “Craft 1000 Yeet Makeshift Biorecycling Science pack.” Letting it spoil simply wastes it.

This follows the same rule as the previous trigger tech that required you to “Craft 300 Yeet Firearm Magazine.” You can mouseover this item in the technology window for more details.

The tech icon has a green bar on top that slowly fills as you make progress. For hard numbers, check production statistics.