At this stage, you are ready to put food items or water
into the cooking vessel or jar, and put the lid on securely.
(See instructions on food cooking times, to follow.)
Place a wooden block in the INSIDE bottom of the cooking bag.
I use a piece of 2X4 board which is cut into a square nominally
4"X4" by about 2" thick. Then place the cooking vessel containing
the food or water on top of the wooden block, inside the bag.
Next, gather the top of the bag in your fingers and blow
air into the bag, to inflate it. This will form a small
"greenhouse" around the cooking vessel, to trap much of the
heat inside. Close off the bag with a tight twist tie or wire.
Important: the bag should not touch the sides or lid of the
cooking vessel. The bag may be called a "convection shield,"
slowing convection-cooling due to air currents.
Place the entire bag and its contents inside the funnel near
the bottom as shown in the Photographs.