Yes i intend for this to be a serious discussion. Not a shit show of, bro if you don't filter you're an asshole ect.
Most people seem to think that BA is useful only to stop the development of bacteria. But from research it seems that benzyl alcohol is a more than capable disinfectant. Its listed in the British Veterinary Association's veterinary formulary as being a capable disinfectant.
Now lets look at a study of Benzyl Alcohol placed in a vial with bacteria.
This one isn't related to AAS but shows BA's capability at destroying most forms of bacteria.
http://www.processdevelopmentforum.com/files/tips/PDFForJune18.pdf
The air we breathe contains over 1800 different kinds of bacteria.
Now lets look at how vials are sterilized in most home brew operations.
1. They are placed in the oven at a pre-set temperature, each covered with a piece of tin foil.
2. Stoppers are baked in the oven at a pre-set temperature and usually dipped in benzyl alcohol.
3. Once vials are cool the foil tops are taken off the vials one by one and the rubber stopper placed on each vial.
4. The oil is injected into each vial using a needle, syringe filter and vent needle.
Lets get back to the point that is in bold text above. The air CONTAINS over 1800 different kinds of bacteria...
As soon as the foil is removed from each vial the entire inner part of the vial is exposed to 1800 different kinds of bacteria. This is an IMMEDIATE process and know matter how quick you do it, its still exposed.
So we basically sterilize vials and stoppers, only to expose them to thousands of different kinds of bacteria after sterilization. We also sterilize our oil, only to inject it into already contaminated glass enclosures.
Unless you are using sterile vials that you have bought which have already been sterilized in an autoclave and sealed, it seems pointless to filter the oil. My understanding is that vials are capped with the stopper before they go into an autoclave. To prevent what i am discussing in this post.
So considering most people don't get infections from UGL steroids. It seems that the benzyl alcohol probably does 99% of the disinfecting. Considering most UGL's don't invest thousands in autoclaves and expensive equipment.
Lets discuss... Bro science aside please. I'd like this to be an intelligent discussion, not a shit show.
Most people seem to think that BA is useful only to stop the development of bacteria. But from research it seems that benzyl alcohol is a more than capable disinfectant. Its listed in the British Veterinary Association's veterinary formulary as being a capable disinfectant.
Now lets look at a study of Benzyl Alcohol placed in a vial with bacteria.
By: SV-1
Development of a Multidose Formulation for a Humanized Monoclonal Antibody Using Experimental Design Techniques
"The efficacy of the preservative against various microorganisms was measured using a modified USP/EP PET (referred to as preservative screening test in this document). Tests were conducted at Microconsult Inc (Dallas, TX). In the procedure, formulations were tested against the following microorganisms: Escherichia coli, Staphylococcus aureus, Pseu***onas aeruginosa, Candida albicans, and Aspergillus niger. The 3 bacterial strains were inoculated together at a total concentration of ~105 cfu/mL, as were the 2 fungi. Samples were incubated for 7 days at room temperature (25°C), and the total bacterial and fungal counts were measured using a colony counter. The log reduction (LR) values for the bacterial and fungal counts were calculated as log (initial count/final count)."
"Results of the preservative screening tests showed that the formulations containing 0.75% and 0.5% benzyl alcohol are potential candidates to meet the USP/EP criteria (Table 4). Both formulations demonstrated a complete kill of the tested bacterial and fungal species after 7 days. For all other samples, either the total bacterial count after 7 days was too numerous to count, or no effective reduction in the bacterial count was observed."
"benzyl alcohol caused significant aggregation at high concentrations (≥1.0%); however, it was the most effective preservative in maintaining antimicrobial efficacy against bacteria and fungi."
This one isn't related to AAS but shows BA's capability at destroying most forms of bacteria.
http://www.processdevelopmentforum.com/files/tips/PDFForJune18.pdf
The air we breathe contains over 1800 different kinds of bacteria.
Now lets look at how vials are sterilized in most home brew operations.
1. They are placed in the oven at a pre-set temperature, each covered with a piece of tin foil.
2. Stoppers are baked in the oven at a pre-set temperature and usually dipped in benzyl alcohol.
3. Once vials are cool the foil tops are taken off the vials one by one and the rubber stopper placed on each vial.
4. The oil is injected into each vial using a needle, syringe filter and vent needle.
Lets get back to the point that is in bold text above. The air CONTAINS over 1800 different kinds of bacteria...
As soon as the foil is removed from each vial the entire inner part of the vial is exposed to 1800 different kinds of bacteria. This is an IMMEDIATE process and know matter how quick you do it, its still exposed.
So we basically sterilize vials and stoppers, only to expose them to thousands of different kinds of bacteria after sterilization. We also sterilize our oil, only to inject it into already contaminated glass enclosures.
Unless you are using sterile vials that you have bought which have already been sterilized in an autoclave and sealed, it seems pointless to filter the oil. My understanding is that vials are capped with the stopper before they go into an autoclave. To prevent what i am discussing in this post.
So considering most people don't get infections from UGL steroids. It seems that the benzyl alcohol probably does 99% of the disinfecting. Considering most UGL's don't invest thousands in autoclaves and expensive equipment.
Lets discuss... Bro science aside please. I'd like this to be an intelligent discussion, not a shit show.