How To Keep Your Bottle Of Water Cold For HOURS

Step 3 Step Three

Freeze your bottle. I recomend leting it freeze over night for maximum coldness duration. (Pardon my french)

Comments

[bashh]

if you freeze it without the cap on, the pressure created from the water expanding should be relieved by the open end, therefore not causing the bottom's rounded expansion you talk about in the next step, allowing it to still be able to sit flat. I've not necessarily tried this, but it should work.