I first mixed the sawdust together with the bran, then added water and stirred to make sure they are all fully moisturized.
BEFORE
Then I put the bag into boiled water and let it boil for an hour.
AFTER
After an hour of boiling, I pulled out the bag and let it cool down for several minutes.
I mashed the mushroom spawn
I then put the mushroom spawn into the bag and tried to mix them as evenly as I can.
At last, I closed up the bag with a twist tie, stored it in my room and wait for the fungus to grow.
So far my mushrooms are growing pretty well! I will keep taking care of it and just wait & see till it grows out actual mushrooms.