Extreme heat is a formidable adversary, but with knowledge and preparation, its risks can be mitigated.
West Weekly: Your Survival and Water
After boiling the water let it sit in the direct sunlight. UV Light will help to kill other living particles in the water that might have been resistant to the boiling.
9 Things You Need In Case The World Ends
“Although coffee grounds can do a lot more, this is a good place to start.”