How to make Cebil (or Yopo):
In order to be absorbed by the body, the seeds must be prepared prior to use: 
--- use 1-4 seeds per person 
--- heat seeds on low heat until they pop 
--- separate the outer seed from the inner seed 
--- the inner part of the seed is used 
--- discard the outer seed shell 
--- heat the remaining inner seed on low 
--- stop heating when it is hard and crunchy 
--- crush the seed 
* * * * use a coffee grinder, mortar and pestle, etc. 
--- mix the following 
* * * * 2 parts seed : 1 part lime or shell : 1 part baking soda 
--- add a few drops of water to form a paste 
--- mix well and heat on low until material dries 
--- crush dry material into a fine powder 
* * * * use a coffee grinder, mortar and pestle, etc.