Rendering Pork Fat

How To Render Fat To Make Lard

You will need a pot or Dutch oven.
Pre-heat oven to 250º regular oven 225º convection oven.

Place 5+ pounds of ground pig fat into a covered oven-safe dutch oven.
Bake at 250º regular oven 225º convection oven, stirring occasionally for about an hour or so. Most of the solid should have turned to liquid by then. Be careful that the ground fat doesn’t turn brown in color.
Ladle out the liquid and strain through coffee filters layered in a metal strainer.
Put any strained solids back into the dutch oven.
Let the lard cool to about 100 degrees, and portion them into plastic soup containers or silicone bakeware.
Put in freezer until completely cool and solidified.
Leave headspace, as the lard will expand in volume as it cools.
Turn out onto a cutting board and slice into usable pieces.

From http://www.annsentitledlife.com/recipes/how-to-render-fat-to-make-lard/