Just don’t pour your used cooking oil down the drain!
This is a huge problem for city sewer systems (check out fatberg in London) and an equally huge opportunity for bio fuel companies: bring your used cooking oil to a bio fuel pick up location.
As usual, we are very lucky in San Francisco to have several convenient locations — at Rainbow Grocery and some Whole Foods locations, for example. Check out this link from SF Water Power Sewer for details.
And Happy Chanukah! May the holiday lights bring us peace and joy!