Caked on Grim... No More

I seem to be using a roasting pan more and more these days.  The problem... the oily residue that just won't budge.

I found a natural way to clean the pan that will hopefully work.

Directions...
(This should in theory work on all pots and pans.)

• Sprinkle pan with baking soda and use a spray bottle to apply vinegar to the surface as well. 
• Cut a lemon in half an use it as your scrub brush.  The bubbling action of the vinegar and baking soda should do the trick.
• I will rewash the pan with soap when finished, but you shouldn't have to. I just have a thing for really hot soap and water.

Note:  If needed, make a baking soda and water paste to apply to the lemon as you scrub.