There was apparently the market for foods that were burned which is a black market OSRS gold. There were people who bought burned food items. They could not be sold or bought through the GE thus the entire community of these weird collectors relied upon the network of traders who traded directly. My seemingly useless work was in making the mysterious man piles of gold!

I screamed out in anger and it seems that someone at the street level could hear my screams. It is likely that they heard a kind of screaming, since after an hour or so, adventurers poured in with weapons and spells at the ready. They later said that they were hoping to see a ghost or a revenant. ghost or something similar. The group of friendly people took me out of the sewers, gave me an image of the map, and then bid me goodbye.

After my release, I've learned about the burning food industry more. It turns out that these collectors purchase all sorts of burnt food items, however, you can only deliberately burn chicken and cooked meat and that's why I was detained.

Other food items that are burned may fetch higher prices since they are not able to be intentionally burned, i.e. they cannot be cooked twice. If you're studying Cooking, you should consider selling the burned food to these collectors Cheap RuneScape gold who are eccentric instead of throwing them away. In the end, why not earn money while learning cooking?