Hey Rida,
Sorry...i CAN be a bit of a Sarcastic Twit (sometimes)
Ice cubes would not work...Again,
the idea is to store the Protein Container/Tube (5-6lbs) in a cool and dry place in the car, I can then carry 3-4 shaker bottles seperatly, and mix a drink whenever i want. Water or Soy Milk or whatever---can be purchased at convience store.
Ideally you would want to store the protein in the trunk SO ITs out of the way (if you are busy like me)...and then where-ever you happen to be, and don't feel like standing in line for fast food....you just jump out of the car, mix a shake and BOOM....you got another 20-50g OF protein in your system.
TEMPERATURE in the car will reach 120 degrees plus (on a sunny day). On HOT DAYS, its gets even hotter inside, AND THE TRUNK Temp is usually about 10 degrees warmer.
~T