Step one

Mix 400ml of water with 40g of cornstarch in the pot

Step two

Place the cooking pot over a medium heat until it thickens into a paste

Step three

Mix all the dry ingredients of oak sawdust and coffee grounds in a beaker

Step four

Turn off heat and add dry ingredients to the pot, combining well

Step five

Add the mixture into the mould and set aside for 20 minutes

Step six

Remove the material from mould and place in sun or put in dehydrator till bone dry