Well Oblivion.. It's my personal belief that Aya/Pharmahuasca is BIG medicine.. So I strongly advise you to do a whole bunch of research before you embark on this journey.. Please please read up... Goto
www.dmt-nexus.com - goto the forums, goto the ayahuasca forum, and read the "all about aya" sticky. Goto erowid and read everything. Read some reports. Etc. Etc.
It sounds like you don't know too much about this yet, so I'm not sure if you know what you're getting into. Just trying to pass on a little caution though, not trying to come across as a dick. I think it's a good thing when people are interested in this stuff..
So to try to explain a little bit...
First of all.. it's not pharmahuasca with your pharmy RIMA (thanks for saying it was a RIMA, didn't know that).
Ismene, I'm sorry but you're wrong.. Google it, Wiki it, check erowid.. These plants have scientific names, and they also have common names.. The scientific name for the vine is Banisteriopsis Caapi. It's common name is Ayahuasca. The terminology got translated in the west to mean any drink containing and MAOI and DMT, but that is wrong.
And trust me.. Drinking only Caapi WILL do something.. That's what I'm trying to explain to Oblivion here.. Westerners have gotten far too obsessed with DMT and lost site of the native process.. Caapi contains harmalas. Those act as the MAOI, but they ARE very active themselves. I have drank several Caapi only brews, and they are most certainly psychedelic.
So Oblivion, DMT is amazing, and you could have a nice DMT trip with your materials I'm sure.. But if you want the true *huasca experience, you need Caapi.. or at least some Syrian Rue seeds, those have harmalas too.
And as for the tea.. You CAN make it in about an hour or so.. but really the best way is to spend at least 4 hours or more. Some people brew these teas for weeks. Personally I take about 7 to 9 hours making mine.
Grind up the chacruna leaves.. Like I said, I recommend about 30g your first time, but it's up to you. (If you do more I recommend a sitter)
Toss them in a stainless steel pot, and add enough water to make it soupy and completely submerge the plant material. (The more water you add the longer the process will take, but you'll have a stronger end product)
Add about 1 teaspoon of vinegar for every 500ml. This is not completely necessary, but trust me it will help get the active alkaloids out faster.
Bring the water to a boil, then lower the heat so it's simmering just under a boil. Let this cook down for at least an hour I'd recommend, then pour off the water into another container, using a t-shirt or something as a strainer.
Then I recommend doing two more rinses. Keep the plant material, fill with water again, add vinegar. Repeat the process two more times.
Then finally, take the 3 rinses you've done and combine them in a pot and put that on the stuff, just under a boil, to let it reduce until it gets down to a drinkable amount. Somewhere around 250ml is what I usually shoot for.