boil (something) down to (something)
To reduce or simplify (something) to the most basic, essential, or fundamental element(s). Your essay is far too long. Please try to cut out any superfluous text and boil it down to about 10 pages. The issue really boils down to whether customers will be willing to pay more for the same product or not.
boil down to something
COMMON If you say that a situation or problem boils down to something, you mean that this is the most important aspect of it. What they want boils down to just one thing. It is land. His advice boiled down to remembering to `dress casually and stay alert'.