There should not be any white flakes in bottled water. If you have white flakes in your bottle, do not drink it, throw it away and open a new bottle of water.
For the most part, water has an indefinite shelf life. Bottled water sometimes has an expiration date, but this doesn't mean that the water has gone bad if you drink it past that date. However, if you open the bottle and the water smells strange, then you should dispose of it.
After you open a can of baked beans, you should refrigerate the leftovers in a separate container. (the opened can would rust in the fridge)
PYRAMID SHAPED ALUMINUM TUBE --- PUT INSIDE (IN THE MIDDLE) WITH OPEN CAP FOR THE WHOLE NIGHT AND YOU WILL SEE ANTS IN THE MORNING COMING IN THE BOTTLED WATER. OR JUST PUT SWEET POISON (SUGAR CANE)
No it doesn't, but you can refrigerate it if you want to.
The water in your bottle is no longer being purified. Once the seal on the lid is broken and the water is introduced to the air, it is also introduced to bacteria. Bottled water does not contain the chemicals that tap water is required to in order to keep it safe for a prolonged period of time.
If you open the bottle, you need to keep it refrigerated and it will last for a month. If it is an unopened bottle it should last for about a year :)
The pH of bottled water typically remains stable even after being opened and left for a few days. However, if contaminants have entered the water or if there is microbial growth, it could potentially change the pH. It's best to discard opened bottled water if it tastes or smells off.
It should be refrigerated. If it is fresh squeezed and not pasteurized, it will probably keep for just a few days. If it has been pasteurized, it should keep for at least a week - perhaps longer.
No. Vegemite will store without refrigeration.
An unopened, cooked ham should be good refrigerated for 5 to 7 days.
I don't refrigerate water in a non-glass open container because I taste an unpleasant refrigerated odour after a few days or perhaps a week. But, if you don't care about delicate flavour, forever.