Just add water

That will help all the hikers who are afraid to drink water from the streams.

...I wonder if the can is reusable.

Do they make a larger size?

I've actually tried this product before. While it does save significant weight in my pack.. it always left me feeling a little dry....

Did you check the expiration date? Maybe that was the problem.

I never carry the stuff. The packaging is way too bulky for my liking.