Mau nambahin nih bro seputar PG dan VG yang banyak di jual. ane ngutip dari forum luar.
Three base liquid carriers are used for e-liquid manufacture: PG, VG and PEG - propylene glycol, ('vegetable') glycerine and polyethylene glycol.
These liquids, when used as the carrier for other materials, can be referred to as excipients or diluents.
Only the pharma grade of these materials should be used for inhalation, in theory, since all other grades contain contaminants to an increasing degree (the difference between the grades is the percentage of contaminants).
If e-cigarettes become regulated then it is a certainty that only pharma grade will be allowed for inhalation duty. The advantage of this is the minimal contaminant load; the disadvantage is that prices go up. Everyone has a different opinion on this, so in the current climate, where ingredients are unregulated / untested in some countries, perhaps vendors should simply publish what their policy is: either "we use pharma grade only" or "we use food grade", then people could choose accordingly. Some sort of proof would need to be offered if a vendor states 'pharma grade only' - talk is cheap, after all.
These carriers are made in four grades:
Pharmaceutical Grade - for human consumption including by inhalation
Food Grade - for human consumption by ingestion but not inhalation
Agricultural (Farm) Grade - for use in connection with animals
Industrial Grade - for use in machinery, manufacturing and similar purposes
All of these grades except Pharma Grade contain contaminants, in increasing amounts as the grade quality reduces. This is the difference in the grades.
DO NOT BUY FARM GRADE OR INDUSTRIAL GRADE MATERIALS FOR INHALATION - THEY ARE CONTAMINATED.
source: http://www.e-cigarette-forum.com/forum/ … rsion.html
Ane sih nangkepnya VG yg foodgrade itu juga kurang bagus untuk di inhale. yg bisa dipake untuk inhale itu yg "pharma grade". Jadi harus lebih hati2 dalam milih bahan2 untuk diy liquid. kan kita vaping mau hidup sehat bro *peace*