Originally Posted by bananaT

Well it clearly does not take a year.

You could throw the scraps right into your soil, but its still going to take its time. Why not speed it up?

There is plenty of oxygen getting into the mix if your going to mix it of course.
The heat from the sun is working on it though, that's not a factor in normal composting. With the external heat, instead of relying on microbial work, and the enclosed space, it works very well at breaking down waste.

As I said its not the same end product as actual composting, but you end up with a nutrient dense byproduct, that in the end will boost the organic content of your soil and aid in beneficial microbial growth.