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Thread: BOTTLED WATER - SAFE SHELF LIFE
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14-02-2019, 20:13 #21
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Re: BOTTLED WATER - SAFE SHELF LIFE
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14-02-2019, 20:39 #22
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Re: BOTTLED WATER - SAFE SHELF LIFE
Jup miltons is over priced bleach
Im going to try and explain it like this.
Sanitizing-killing enough bacteria so that the leftovers is not dangerous anymore just lowering the amount of bacteria. Whatever is left can stil grow and become more again and become dangerous again. This is chlorines and bleaches and ozone as well as boiling of water.
Sterilizing- killing all microbes and their spores. This is dificult to do.
You need 121 degrees for 30 min with moisture and 160 degrees for 2 hours in dry conditions.there are some chemicals that can sterlize under the right conditions like QAC but these are really toxic and should be used with care and again under the right conditions like pH
Preservation-yes those pesky things that everybody is against these days treating it like it is from the devil. “No preservatives” just as good as the anti vaxxing croud. Anyways preservation is creating a condition that is not condusive to microbial growth this can be done by drying, use of salt or sugar or a number of different chemicals compounds.
When it comes to long term storage you need preservation or sterilization with no chance of contamination. You can boil the sealed bottles at 121 degrees for a half hour or you can add a chemical compound to make the water non condusive for bacterial growth the compound needs to be a preservative that does not break down or deteriorate over time so not a sanitizer.
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15-02-2019, 06:46 #23
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Re: BOTTLED WATER - SAFE SHELF LIFE
Correct. For all intents and purposes though, sanitised is fine for personal consumption.
Correct. Milton's is basically bleach, sans the scents and so on. Makes it a bit more palatable. This is why I prefer brewery or dairy sanitisers. The options are many, the flavours are absolutely minimal and they're made for that purpose. They come with instructions, so you don't have to guess how much contact time is needed at which temps, etc. You simply dilute as per instructions, let it sit for the recommended time (usually not the 15 minutes that bleach requires), pour of excess and you're ready to go.
The options are plenty:
Iodine based sanitiser, making it completely safe for consumption if you're not allergic: http://brewmart.co.za/shop/index.php...product_id=226
World-famous acid-based sanitiser, high-foaming making contact time easy to achieve and completely no-rinse, StarSan. Expensive, but a bottle lasts forever: http://brewmart.co.za/shop/index.php...&product_id=51
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