Factorio Forums

Molten recipes in a foundry cannot be auto-chosen via combinators/signals, specifically through signal of molten metal from fluid category. Instead it goes to "metal from lava" recipe", however that recipe already has its own signal which works fine in the intermediate category.

Thanks for the report. This is working correctly. If an item or fluid has multiple recipes to craft it the "first unlocked and craftable in this machine" is used. If that's not what you want, you can manually feed the signal you want into the machine using combinators.

@Rseding91 Sorry, I didn't clarify enough. What I tried to say - there is no certain signal to set the recipe which uses ore to smelt molten metals. It always sets to molten metal from lava, the one with stone as byproduct. Ore signal doesn't help.

Ah I see now. Ok, so for the next release I've made the recipe signal for that recipe show in the signal list. Which will mean you can feed it into a foundry to force that recipe.