What is life expectancy of water?

I agree with Trapper, if you do nothing to enhance life span. However, there are options to stretch "safe consumption" window of H2O. I would strongly suggest a 'purification' process before using any long-time stored H2O, though, like boiling, carbon filtration, etc. From The Ready Store blog: By Marc from Ready Store 23 comments More from this author At The Ready Store, we often get this question. Many believe that you can use household bleach to purify water storage. Here is the best answer we can provide. Household bleach is not manufactured with human consumption in mind. The chemicals are much higher than what would be considered safe for human consumption. Having said that, if you don't have anything else, using bleach may be better than nothing. It's not recommended to use straight bleach to purify your stored water if you have better options. It would be much better to purchase a water treatment that is guaranteed not to harm you when consuming. The water treatment we and many other companies carry would purify the stored water up to 5 years so you don't need to worry about changing it out or over contaminating the water with bleach.

what is the temp range for these bags? can they hold 100c water?

Manufacturer does not specify if this bag can hold boiling 100 C water, however, it can be frozen.

Please describe the closure system on these bags. Are they resealible?

These bags are garbage. What a joke. Don't waste your money

Never used mine. They wen directly into my emergency bug out bag. However, I do believe they would be reusable if used only for water.

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💧 Stay hydrated, stay prepared—because survival is the ultimate power move.

COMPACT LIGHTWEIGHT - Rolls down small and weighs next to nothing—perfect for minimalist survival kits.
STERILE READY TO USE - Factory-sealed bags ensure 100% sterile water storage—no contamination, no worries.
MILITARY GRADE DURABILITY - 4.0 mil thick polyethylene resists punctures and tears, built to survive the wild.
LEAKPROOF SPILL RESISTANT - Innovative closure tabs and gusseted bottom keep your precious water secure and upright.
MULTI PURPOSE EMERGENCY ESSENTIAL - Safe for purification tablets and solar stills—your all-in-one hydration solution.

Originally designed for lab use, these 36 oz Whirl-Pak bags are factory-sealed sterile water storage solutions with leakproof tabs and a gusseted bottom for stability. Made from tough 4.0 mil polyethylene, they resist punctures and tears, making them ideal for emergency kits, military use, and outdoor adventures. Compatible with purification tablets and solar stills, they combine compactness with durability for reliable hydration anywhere.

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Color	Clear
Shipping Weight	0.07 Kilograms
Item Part Number	B01449WA
Primary material	3.0 mil Polyethylene
Number of Pieces	1, 4, 6
Manufacturer	Nasco
Country of Origin	USA

5col Survival Supply 36 Oz. Whirl-Pak Emergency Stand-Up Water Bags - Pack of 6

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