People used to talk about Jincao like it was just a nice little comfort item: toss it into the Wuling AIC, crank out some drinks, patch yourself up, move on. I did that too. Then 1.1 landed and the community basically split into two groups: the folks who tested everything, and the rest of us staring at our bloated farms like, "Wait… why did we build it this way?" If you're tweaking your setup (or even looking into Arknights endfield boosting to speed up progression), this one detail changes what "efficient" even means.

What changed with Refining

The shock isn't the drink recipe, it's the Refining Unit output. For ages, Buckflower from Valley IV was the default carbon plant because it's easy to route and the math felt settled: one plant in, one carbon out. Clean. Predictable. Except it wasn't the ceiling. Jincao—and other Wuling plants like Yazhen—refine into two carbon per unit. No fancy trick, no rare upgrade, just a flat 2x return. You don't notice it if you never drop Jincao into Refining because the game nudges you toward "healing item plant" thinking, not "core industrial input" thinking.

Why carbon is the real endgame tax

Carbon doesn't sound exciting until you hit the Xiranite wall. Xiranite wants Stabilized Carbon, and Stabilized Carbon wants an annoying, constant stream of raw carbon. That's where most "my base is fine" layouts quietly fall apart. The Forge of the Sky becomes the choke point, not because it's weak, but because you can't solve it with brute force. There are placement limits, slot limits, power limits. So when your forge is starved, you're not missing one more belt—you're missing better inputs. Switching Buckflower lines over to Jincao is basically doubling your carbon feed without adding a single extra building, which is the kind of gain you usually only get from tech jumps.

How it reshapes base layouts

Once you accept Jincao as an industrial crop, your whole footprint changes. Those wide, messy carbon fields that sprawl across half your zone? You can cut them down hard. Two-to-one yield means fewer planters, shorter belts, fewer intersections, and less time babysitting throughput. You'll also notice your buffer storage behaves differently: bins fill faster, production spikes feel smoother, and your forge downtime drops. A lot of old wiki blueprints are instantly outdated here, not because they're "bad," but because they were built around the wrong assumption.

Practical next steps

Go back to Wuling, grab seeds, and actually run a quick controlled test: same number of planters, same belt speed, same refining count, then watch carbon output. It's obvious once you see it. After that, rebuild around the forge instead of around the farm—keep the refining tight, keep the belts short, and let the higher yield do the heavy lifting. And if you're trying to catch up fast on mats or currency while you retool, it's worth knowing that U4GM offers game currency and item services that some players use to skip the slowest parts of the grind, especially when an update like this flips the "correct" factory plan overnight.