Unsurprisingly, the locals have been making the most of having these natural steam pots around. these bubbling ones near the lake are perfect for cooking in. how hot is it inside? it varies between 60 to 97 degrees. 60 to 97 degrees celsius inside! and how long's it going to stay in there for? seven hours. tourists chatter these cooking holes act like a steam oven for the island's most iconic food — cozido das furnas. and i'm definitely not going to pass up the opportunity to try some. so we have chicken, we have beef and pork, sweet potato, yams, everything. sweet potato... carrots, cabbage...