you need to learn some basic things like what happend when a body start fermentation, types of fermentations, presure inside bodies... also basic conceps of alchemy and how much perverted/corrupt is the current state of mind of the majority of people (ideas, language, cconvictions...), and without a study of the basic elements and to understand more or less the idea of what the text means...
first point, never do alchemy like a robot follow recipes, you can but near 100% you achieve nothing
alchemy is NOT a cool hobby!!!
you cook in a pressure cooker without a safety valve? or with the valve closed????
if you do robot alchemy make only what alchemist say, if say "gentle distillation" don't make a "fast (very hot) distillation"
well... without understanding what you're doing beyond the obvious...
"The Seal of Hermes" is a vessel close/fused in the neck where nothing can scape, never till you break the frask...
what type of fermentation ??? spirituous? acetous?? putrid???
if you see my post about the stranberr. water... I put in the frask, and I just dropped the cap on the neck and once in a while remove the stopper for release pressure. However the cork shot out like a rocket. I are surfing inet with the frask near me. very funny... I heard a little "boom", a "pssssssi" a "plof" and finaly the stopper in the floor with a big "crash_plofff"... all this without separating the head from the screen, only after the "crash_plofff" I turned my head and I said: "woW, the fuc_king stopper!!!" :DDDD
with putrid fermentation the air of the element in putri. is realased and also heat, so presure increases...
another case scenario, I put a matter in a flask, in this case well closed with the frozed stoppper... many space are empty so I think: possibly endure very smoothly... when a try to open the flask... well the stopper not go out (typical) but with some blows in the neck... yes some blows in the neck and the flask exploded!!! only left the neck and cap in my hands...
a method is read here and there books and more books, in the end you only follow 2, 3, 4 and no more, inclusive some alchemist when achieve the PS burn all their books, in a stupid "act of faith"