There was an 'excess' of 10 bushels (over what was needed to fill the bin).
Eating anything 'in excess' [=in overly large amounts] can be bad for you.
The movie embraces all the worst 'excesses' of popular American culture.
(..) That material is heating up. Narrator: Gas is speeding into the black hole. But it overloads, And there is no room for all that excess hot gas. It has nowhere to go but out. It's blasted into space in huge jets of energy. Each jet is times wider than our solar system (..)2010 TvShow: How the Universe Works Title: Black Holes Season: 1 Episode 2