It kind of looks that way - when free water in solution has a Water Activity greater than 0.6 (relative to that of distilled water at unit value of 1.0). Dry uncooked pasta has a Water Activity of ~0.5 that of distilled water. “Most spoilage moulds” flourish by WA ~0.8, and “most spoilage yeasts and bacteria” flourish by WA ~0.9 .
Regarding the efficacy of PG and Glycerine as bactericides in cultures, this study reports required % concentration levels for PG and Glycerine to exhibit antimicrobial activity. The lower the % concentrations in solution reported below, the higher the effectiveness as bactericides against the indicated bacterial strains.
Am finding Ethanol being referred to as having some “anti-bacterial” activity (more than that of PG or VG). Hopefully serving as a “saving grace” in aqueous solution - as high temperatures may be contraindicated ? The following somewhat interesting CDC link about alcohols as disinfectants was graciously shared (and actually investigated by me, as an essential element of engaging in “critical thinking” as I would define it): https://www.cdc.gov/infectioncontrol/guidelines/disinfection/disinfection-methods/chemical.html
Each substance (may, and if so, does) have a unique “Moisture Sorption Isotherm” curve associated with it - which relates proportional Water Content to Water Activity. As Water Activity relates to energy, it alone determines the characteristics. Mustard (that from listings provided seemed the closest to a macerating “goo” solution) reaches Water Activity of ~1.0 at not more than 30% Water Content. Food for thought.
From paper linked-to at beginning of this post here are Water Activity thresholds for (some) microbes:
This is why we do not add water to either a NET or DIY situation.
there is nothing at all to stop mold, floaters or other kinds of contaminants and no prevention.
Taken from this thread here:
If you do not want to pay to test if your invention/solution is safe for you and others, it’s all on you.
Edit: I won’t respond further. This to me is not an argument… not really worth my time in battling.
tired of my mail pinging. don’t like what I said… move on… get over it and go do your own thing, without me in the middle.
Interesting find there. Found a 2015 paper reporting in an (independent, peer-reviewed) product evaluation.
One (possible) concern regarding extracts/e-juice is the UV wavelength used (254 nM, existing in the UV-C range, see Figure 7 on Page 473). The following makes me wonder about the optical transmissivity of the various types of relevant (extract/e-juice) solutions, and resulting impacts upon process effectiveness(?):
Another point is that in the company’s published list of microbial pathogens affected (here), there is no mention of what appears to be the most dangerous constituent - Aspergillus Fumigatus conidia (spores), which are said to survive the (higher than vaping) combustion temperatures of, and enter the smoke from, burning tobacco. AF conida are ubiquitous in the environment (estimates are that ~400 are inhaled daily), and they can represent a very serious respiratory danger to any person(s) who are immune-compromised.
My personally chosen approach is to attempt to filter-out AF conidia (2-3 Microns in width, 6-8 Microns in length) by using 1.5 Micron acceptance-size filters, carefully discarding filter and all pre-filtered components, then storing my filtered tobacco leaf extracts in sealed glass containers in my refrigerator at ~50 *F (10 *C). As far as suspension of the extracts in PG and/or VG is concerned, PG is an ingredient that is used when storing and culturing AF. Even more common appears to be VG, which is used extensively in solutions for storage of AF and combined with Glucose when culturing AF. Thus, I am not “bullish” on glycols as protective
Indeed, those often much maligned microbial critters can indeed be our friends ! All that they need to do is metastasize from lungs to the large intestine via one’s bloodstream to work their “systemic infective magic” !
I myself rely on my super-bodacious immune system. Pesky aspergillomas are no match for my ultra-macho macrophagic phagocytes formulating ginormous and beefy granulomas running quicker than death, forthwith.
Cancel my Rhumba lessons, then ! I’m taking my utterly clueless pseudo-scientific toys, and going “home”:
Even if someone told you that as they roll down the throat and into the tummy they become wide-spectrum pro-biotics that will set your microbiome straight with a seasonal cavalcade of groovy new “strangers” ?
No all i am saying is I would not vape juice that looks like that. Flavour is not the same as festy bits growing in my vape juice. But I don’t vape or make tobacco nets either as the taste doesn’t appeal to me and any net made down here would be super expensive due to the sin tax the government has on tobacco so it will never be an option for me even if I wanted to.
I do not claim to have any knowledge as to any health effect of vaping mould or bacteria. I am just saying that they look unappealing and would not vape them. If you would vape them then feel free. As for the original thread extracting using water I have zero experience of doing any extract so cannot and will not comment as to any good or bad that may come of it.
I can play this game. The only thing I can think, of that is non toxic at the moment might be “yeast”. Used in most things like beer, whiskey, and bread making. The other thing if you are thinking of moldy stuff is the Blue Cheese.