Hello, I am sure many of you know what black garlic is... for those of you who do not, basically it is fermented garlic. The way it is made is that a whole head of garlic is kept at 140 degrees for 40 days, BUT in an airtight container (so it cannot dehydrate), the result is that the garlic becomes completely black, sticky and soft and also has a kind of caramelized taste. My question is that usually when people make regular garlic oil, they must bring the garlic to 250 degrees in order to kill the Clostridium botulinum that my grow in the oil.... can the same be done with black garlic oil?? - I do not intend to make this oil to use within a few days... i intend to commercialize it, as i have done with porcini oil in the passed. This is why i would like to know how to make sure the oil is sterile. I usually pass all oils through a vacuum filter at 25 micron and 45 micron to get rid of all bacteria and viruses... but i do not know what Clostridium botulinum is considered and if it will be filtered out... and i think if its contaminated i cannot be filtered out... anyways, your help would be appreciated! Thank you,