If you are in Port Neapolis (cotton port), and you have way too much cotton in there. You don't want it to be taking up warehouse space.
There should be option at the warehouse to "Burn" materials in there. You gain nothing from burning. The materials can be picked to burn and homwuch.
Ex: I have a 150k warehouse in Neapolis and have 50k Cotton in it.
I want to burn 30k cotton.
Press option to burn > Pick Cotton > Select how many cotton to burn.
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