Adjustable flammability would help a lot with keeping things at the right temp as well as the ability to raise the temp if needed. Lets say for instance you have a tank of salt water you want to separate the salt from. The temp would have to be 100 to do so. So the flame would ve adjusted to be at a little over 100. Now lets say you want to melt the salt in the same tank. You can adjust the temp with the concentrated ethanol to make it burn at over 1000. If I am not mistaken, arent there sensors that can detect life value? If there are, then it would be quite easy to do this.

The reason there is alcohol found in rotting fruits and vegetables is because there is usually a type of fugus in them. The fungus breaks down the sugars in the organic matter and turns them into co2 and alcohol. Usually that fungus is a type of yeast. Yeast is very prevalent in the world and there are many different types. So yes, I think yest should interact with making ethanol. Plant and vine could be a way of doing so.

If you look at your post before your last one, one of the devs kind of edited it. I think that is how they responded.