making ayahausca is actually very simple. all you need is 15-30 grams of mimosa hostilis root bark(Jeruma), a non aluminum pot, 2-3 grams of syrian rue, or 20-30 grams of caapi, a little bit of white vinegar, and a stove.
put your mimosa into the pot, with 4 cups of water and 1 cup of vinegar. stir the pot untill it comes to a simmer. (you want the liquid to get HOT, but not boiling) stir the mixture ever 5-10 min for the next 3 hours. after that time, you can use a white cotton T-shirt to filter out the mimosa foliage out of the liquid. put the liquid into the fridge while you cool the mimosa agian.
to cook the mimosa for the second time, you do the exact same thing. add 4 cups water 1 cup vinegar. cook for 3 hours while stirring, and then filter. do this one more time.
the liquid you end up with should be simmered down into a smaller amount that is drinkable. make sure you dont boil! then depending on the maoi you use, you can either use a coffee grinder on a bunch of syrian rue, and perichute it or make a tea out of it, or if you use caapi you will have to also make a tea for that.. (but you can just add the pulvarized stuff into the brew)