Vinegar and Hydrogen Peroxide as Disinfectants

You can make your kitchen a cleaner, safer place nd fight bacteria, without exposing yourself and your family to toxic chemicals that also damage the environment. You can use a simple safe disinfecting spray that is more effective than any of the commercial cleaners in killing bacteria. As a bonus, it is inexpensive! Susan Sumner, a food scientist at Virginia Polytechnic Institute and State University, worked out the recipe for just such a sanitizing combo. All you need is three percent hydrogen peroxide, the same strength available at the drug store for gargling or disinfecting wounds, and plain white or apple cidar vinegar, and a pair of brand new clean sprayers, like the kind you use to dampen laundry before ironing. If you're cleaning vegetables or fruit, just spritz them well first with both the vinegar and the hydrogen peroxide, and then rinse them off under running water. It doesn't matter which you use first - you can spray with the vinegar then the hydrogen peroxide, or with the hydrogen peroxide followed by the vinegar. You won't get any lingering taste of vinegar or hydrogen peroxide, and neither is toxic to you if a small amount remains on the produce. As a bonus: The paired sprays work exceptionally well in sanitizing counters and other food preparation surfaces -- including wood cutting boards. In tests run at Virginia Polytechnic Institute and State University, pairing the two mists killed virtually all Salmonella, Shigella, or E. coli bacteria on heavily contaminated food and surfaces when used in this fashion, making this spray combination more effective at killing these potentially lethal bacteria than chlorine bleach or any commercially available kitchen cleaner. The best results came from using one mist right after the other - it is 10 times more effective than using either spray by itself and more effective than mixing the vinegar and hydrogen peroxide in one sprayer. Reference note: Articles on Dr. Sumner's original research work appeared in the scientific news journal, "Science News," in the issues that were published on August 29, 1996, and on August 8, 1998. CAUTION: "Can I mix the hydrogen peroxide and vinegar into one sprayer?" The short answer is: NO! The longer answer is: never mix hydrogen peroxide and vinegar together in one container. The resulting chemical, peracetic acid, can harm you when mixed together this way if you accidentally create a strong concentration in this fashion. Peracetic acid also has entirely different characteristics and properties than either hydrogen peroxide or vinegar. Additionally, we don't know if peracetic acid kills the same group of pathogenic food-borne bacteria when used this way as a spray - it very well may not.

Killing Power Of Bleach Increased By Vinegar

Killing Power Of Bleach Increased By Vinegar Adding white vinegar to diluted household bleach greatly increases the disinfecting power of the solution, making it strong enough to kill even bacterial spores. Researchers from MicroChem Lab, Inc. in Euless, Texas, report their findings today at the 2006 ASM Biodefense Research Meeting. Sodium hypochlorite (NaOCl) in the form of laundry bleach is available in most households. The concentrate is about 5.25 to 6 percent NaOCl, and the pH value is about 12. Sodium hypochlorite is stable for many months at this high alkaline pH value. "Laundry bleach is commonly diluted about 10 to 25-fold with tap water to about 2000 to 5000 parts per million of free available chlorine for use as an environmental surface disinfectant, without regard to the pH value of the diluted bleach. However, the pH value is very important for the antimicrobial effectiveness of bleach," says Norman Miner, a researcher on the study. At alkaline pH values of about 8.5 or higher, more than 90 percent of the bleach is in the form of the chlorite ion (OCl-), which is relatively ineffective antimicrobially. At acidic pH values of about 6.8 or lower, more than 80 percent of the bleach is in the form of hypochlorite (HOCl). HOCl is about 80 to 200 times more antimicrobial than OCl-. "Bleach is a much more effective antimicrobial chemical at an acidic pH value than at the alkaline Ph value at which bleach is manufactured and stored. A small amount of household vinegar is sufficient to lower the pH of bleach to an acidic range," says Miner. Miner and his colleagues compared the ability of alkaline (pH 11) and acidified (pH 6) bleach dilutions to disinfect surfaces contaminated with dried bacterial spores, considered the most resistant to disinfectants of all microbes. The alkaline dilution was practically ineffective, killing all of the spores on only 2.5 percent of the surfaces after 20 minutes. During the same time period the acidified solution killed all of the spores on all of the surfaces. "Diluted bleach at an alkaline pH is a relatively poor disinfectant, but acidified diluted bleach will virtually kill anything in 10 to 20 minutes," says Miner. "In the event of an emergency involving Bacillus anthracis spores contaminating such environmental surfaces as counter tops, desk and table tops, and floors, for example, virtually every household has a sporicidal sterilant available in the form of diluted, acidified bleach." Miner recommends first diluting one cup of household bleach in one gallon of water and then adding one cup of white vinegar. ---------------------------- Article adapted by Medical News Today from original press release. ---------------------------- MicroChem Lab can be found online at www.microchemlab.net The American Society for Microbiology (ASM) is the largest single life science society, composed of over 42,000 scientists, teachers, physicians, and health professionals. Its mission is to promote research and training in the microbiological sciences and to assist communication between scientists, policymakers, and the public to improve health, economic well-being, and the environment. Further information on the ASM Biodefense Research Meeting can be found online at http://www.asmbiodefense.org/. Contact: Jim Sliwa jsliwa@asmusa.org American Society for Microbiology

Vinegar Kills Bacteria, Mold and Germs

Vinegar is a mainstay of the old folk recipes for cleaning, and with good reason. The vim of the vinegar is that it kills bacteria, mold and germs.

Heinz company spokesperson Michael Mullen references numerous studies to show that a straight 5 percent solution of vinegar—thekind you can buy in the supermarket—kills 99 percent of bacteria, 82 percent of mold, and 80 percent of germs (viruses). He noted that Heinz can’t claim on their packaging that vinegar is a disinfectant since the company has not registered it as a pesticide with the Environmental Protection Agency. However, it seems to be common knowledge in the industry that vinegar is powerfully antibacterial. Even the CBS news show “48 Hours” had a special years ago with Heloise reporting on tests from The Good Housekeeping Institute that showed this.

Just like antibiotics, common disinfectants found in sponges and household sprays may contribute to drug resistant bacteria, according to researchers of drug resistance at Tufts New England Medical Center. Furthermore, research at the Government Accounting Office shows that many commercial disinfectants are ineffective to begin with, just like antibiotics.

Keep a clean spray bottle filled with straight 5 percent vinegar in your kitchen near your cutting board, and in your bathroom, and use them for cleaning. I often spray the vinegar on our cutting board before going to bed at night, and don’t even rinse, but let it set overnight. The smell of vinegar dissipates within a few hours. Straight vinegar is also great for cleaning the toilet rim. Just spray it on and wipe off.