2006-08-20 20:30:22 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
There are two main types of sterilisation that all food and drink manufacturers use. The first is the use of Perasetic acid that gives an instant kill to most pathogens (bugs that make you ill). The second is by the use of steam. Holding a steam temperature of above 120 degrees in the product line for 15 minutes will kill virtually all pathogens. However, some bacteria form spores when they know the surroundings are becoming dangerous for them. These spores are virtually indestructable and can last for millions of years in ice frozen soil for instance. The only way to make totally sterile drinks would be to make them radioactive and that wouldn't be good! The manufacturer cannot guarantee that their product is free of pathoogens and gives it a 'use by' to minimise their liability. Packaging deterioration is the other reason for the BBD.
2006-08-20 20:46:48 · answer #1 · answered by Ðøwñ tø Ëã®th 5 · 1⤊ 0⤋
Mineral water is obtained from sources that are assayed to be pure, and is not further treated once it comes out of the ground (if it is, it cannot legally be called mineral water. As a result it inevitably contains some bacteria, but at levels completely safe for adults. However, these will multiply over time and ultimately make the water unsafe.
It is never safe to use bottled mineral water for babies.
2006-08-21 04:33:31 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Does it? I never buy bottled water but I didn't think it had an expiration date! LOL!
2006-08-21 03:36:04 · answer #3 · answered by Anonymous · 0⤊ 0⤋
So you know when to throw it out and waste even more money when you don't drink it than you did when you bought it. Funnt thing isn't it, the largest supplier of bottled water in the world is EVIAN which by co-incidence spells NAIVE backwards.
2006-08-21 03:48:58 · answer #4 · answered by galopin_1872 3 · 0⤊ 0⤋
Because it only survives for millions of years when it runs through a spring, but when it's bottled up it has nowhere to run through, so it gets weak, withers up, and dies
2006-08-21 03:38:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋
All foods and drinks do have. They are intended to be consumed, so if you did not, it will expire! Even the universal solvent....
2006-08-21 03:41:19 · answer #6 · answered by persh 2 · 0⤊ 0⤋
Like all food and beverage, federal laws require this, to safeguard consumers.
2006-08-21 03:47:46 · answer #7 · answered by Leong 1 · 0⤊ 0⤋
must have Ben made by mission imposable
2006-08-21 03:55:03 · answer #8 · answered by HEY boo boo 6 · 0⤊ 0⤋
cause it's suseptible to growth of cooties after awhile.
2006-08-21 03:36:06 · answer #9 · answered by chrs_grdnr 2 · 0⤊ 0⤋
because it contains chemicals
2006-08-21 03:36:36 · answer #10 · answered by female_lizzzzzard 3 · 0⤊ 0⤋