rpenmanparker 

Touche. I stand corrected regarding the absolute meaning of "never". But I doubt you would characterize the Appleton, Wisconsin climate as featuring 90 deg F dew points or 95 deg F temperatures with 95% humidities as so many people do when trying to impress the forum how horrendous their weather is. I admit that never is a dangerous absolute, but the ultra-rare exceptions don't mean much to cyclists as climatic norms. And I am pretty sure that most of the 95/95 type claims one reads are the result of just what I said, associating the highest temperature and humidity of a day together even though they occur at very different times.

BoSoxYacht

They say you shouldn't use absolutes like never or always, but it's normally safe to say there's always that one guy that will point out the exception.

rpenmanparker 

Yup. But that's fair. Actually I was glad to learn that such an extreme can really happen especially since it didn't change the understanding that it is incredibly rare.

BoSoxYacht

What I've found works best is to freeze one Camelbak big chill solid, and one big chill (halfway full) frozen solid, and topped off with crushed ice/water. They'll last about 90-105 minutes at 110-118 degrees(30-35miles).

superslomo

The best way I've found to have something cold to drink is to ride in the northeast in December. You'll find it works like a charm.

TheRef

I've had to put boiling water to keep them from freezing during last winter's rides.

linnefaulk

I use Klean Kanteen Insulated bottles. They require a larger cage like the Iris from King Cage.

GuitarBob

FWIW, I use Podium chill bottles, fill them about 1/2 way the night before and put them in the fridge. In the morning I top them off with ice.

Just starting to get into the 60s at night here in Tucson, so morning rides have been a treat. It's been a long summer.

prathmann

That would certainly have been uncomfortable and not a good day for a strenuous bike ride, but an ambient temperature of 101F with dew point of 90F is still only a relative humidity of 75%. Considerably lower than the 95% humidity claim in the previous post.

rpenmanparker 

That's what I'm talkin' about.

Bluechip

This is not roadie friendly but if you can stand a frame bag/water bladder combo, you can get ice cold water for 5-6 hours even in the Houston hea. I freeze half a 3 liter bladder and top off with water and I can ride all day with nice cold water without having to stop. It's great for bikepacking and/or road exploring.

Machka 

Again ... use a sock. Only instead of soaking it like you would while cycling in hot weather, keep it dry.

Nachoman

Do you know of any inexpensive place to buy them?

gc3

Inexpensive? No, but Pro occasionally has them on sale, and usually has free shipping. Otherwise I troll Ribble and the UK sites for sales...

Cyclosaurus

I was at Camp Ripley in Minnesota for National Guard training during that heat wave. It was too hot to even sleep at night.

jgrosser

I use Camelbak Podium Chill bottles. They just re-released the Podium Ice bottles, but the form factor isn't great, as the bottles are very tall.

More to the point: how is it that you need to keep water cold for so long? If I was riding in 95-100 degree weather, I'd be draining a 20 ounce bottle every 45 -60 minutes.

carpediemracing 

Although not the OP I'll start a ride locally with three bottles, for something like a 2-3 hour ride. I use a Chill in my pocket, drain it first, then use two Ices in the cages. It's nice to pop open that third bottle (the second Ice) and have ice cold water. However by the end of the 3rd hour in 95-105 deg weather even a Podium Ice bottle is luke warm at best.

On slightly cooler rides I may not drink that much. I mean, okay, I'm not drinking enough, but I'll sometimes do 2-2.5 hours in 80-85 deg weather and get through just half of a bottle.

Finally, even if I buy water/etc on a ride, it's not as cold as it would be if it had ice in it. Pouring such a drink (usually an emergency for me) into a bottle with ice in it is nice.

carpediemracing 

I've tried socks over bottles myself (and various iterations of socks). There are a few significant limitations due to the physics of evaporation.

First, it won't get the water inside cold. It simply keeps it from getting warm or hot. Meaning the water won't be 32 deg F (which is what ice water is, give or take, until all the ice is gone). An super insulated bottle (Podium Ice) will keep water at 32 deg F for about 2 hours in warm weather (up to 95 deg - I haven't done a 2 hour ride in 105 deg weather). A Chill will do it for an hour. A Podium Ice will be cold until I run out of water in 105 deg F, as I found out when I used 2 full Podium Ices in just over an hour. When I ran out of water I was dumping ice cold water on myself, even unscrewing the top to get the ice into my mouth.

Second, any external cover will compromise bottle/cage interactions. I've never gotten a sock to stay put after repeated sips from a bottle. The bottle doesn't fit the cage anymore. Etc.

Third, there's a limit to the powers of evaporation. If it's super humid out then there won't be that much cooling effect from a wet cloth. For example if it's really humid then the laws of physics dictate that only x amount of fluid can be evaporated (and therefore heat energy absorbed). At 99% humidity, regardless of temperatures, a soaking wet sock won't help much.

After many years of trying different things, after many years of carrying 3 bottles for a one hour race in high 80s heat/humidity, I finally broke down and bought two Podium Ices (not realizing just how effective they were). I bought two more, after the Ices were apparently discontinued, picking up some Chills because that's all there were at the shop. I use the Chills mainly for dump water because they're so ineffective at insulation, at least compared to the Ices. The Ices are really, really, really nice. They're so nice I don't even have a second cage installed on my bike (lost some hardware when I had the frame altered, didn't bother getting replacements). My longest ride was about 4-5 hours after changing the set up and I carried a second bottle in my pocket. I rarely start a race with two bottles nowadays. I've finished races in 85-90 deg F temps shivering from dumping too much ice water on myself before the finale.

Podium Ice on my bike at the start of a race:

JohnDThompson 

Absolutely true. If the dew point is 90° (see above), you won't get evaporative cooling until the water temperature in the bottle is at least 90° as well.

RobertL

I ordered a couple on sale at ProNet Cycling, looking forward to trying them out.

carpediemracing 

I'll add that if I have a cooler in a hot car (like at a race where I'm doing two races) I'll use some of the evaporative tricks for the cooler. I put the cooler usually down low, cover with blankets or something, then put a big towel on top. Dampen the towel with some water, crack some windows.

Leaving a cooler directly in the sun in the car really cuts down on the longevity of the "coolness".