How do you keep the FIZZ in a 2 litre Cola bottle ?????
 

I once saw a guy use a cola gadget to pump air into it. I guess it was pressurizing the air so the CO2 wouldn't escape. Anyone know if those work ? Where do you buy them ?

I was also thinking you could mix carbonated water but that would dillute it. Maybe one of those funny looking Co2 capsules used for air rifles but how would you use that ?

Dry Ice ? Nah.


Any tinkerers or chemists out there have any ideas ?

Chug it!!!

:eek:

If you tighten it enuff, you don't lose carb. The only problem is getting a grip to get the cap off. I have a few tools in a kitchen drawer and just use a small crescent wrench.

Why buy a device to take up valuable real estate in your kitchen? For $19.95, I'll teach you how to preserve the fizz in your 2 liters with nothing to buy, no products to store, and best of all, NO shipping and handling.

Whatever you say, JOhn.

The pump/caps work fine. You can pump up a half full bottle and leave it for days and it still has plenty of carbonization.

thanks. forgot the name. Called a FIZZ KEEPER
 

http://www.boardandbasket.com/browse.cfm/4,2408.html

http://jchemed.chem.wisc.edu/Journal...eb/abs208.html
They only work for couple extra hours from this research report. Hahaha.

http://www.google.com/search?hl=en&l...er&btnG=Search

http://www.boardandbasket.com/prodimg/1049.JPG

I can't see how this would be a problem. A 2-liter never lasts more than a day in my household...

Okay - here's the free trick.

Simply squeeze the plastic bottle until the liquid is near the top and close the cap as tightly as you can. Works great for me.

Cheapest way is to squeeze the air out of the bottle and cap it. This keeps the carbon dioxide from dissipating into the air trapped in the bottle.

Now why didn't I think of that?

Whoa! Posted at the same time...

At what point to you figure you've squeezed the bottle enough?

Spend the money for one of the pumps

or

Drink the whole bottle at one sitting

or

Buy smaller bottles

or

If your Coke is flat, mix in some with carbonation left in it.

or

Drink water - no fizz, never had it, never will.

I'm telling ya, just twist the cap all the way until it locks. Fizz will last weeks.

Move to a planet that has a 100% CO2 atmosphere...

How do you keep the FIZZ in a 2 litre Cola bottle ?????
 

Easy, don't open it , works for me .

Squeezing all the air out can't possibly be right. The Co2 wants to leave the liquid. This is what the pump does. Pressurizes the air so the Co2 has no place to go but stay trapped.

Only if you don't open the bottle in that time period. The problem is not CO2 leaking out of the cap. It is the dissolution of the dissolved CO2 in the soda into the headspace of the bottle. Each time the bottle is opened the equlibrium is upset and more of the dissolved CO2 will escape into the air at the top of the bottle. Basically the more times you open the bottle the more fizz you lose.

I'm tell'n ya, don't open it.

We're talking about a .99 bottle of pop...throw it out when it loses it's fizz.

Well, true, but who opens a 2 litre moe than 2 or 3 times before emptying it? :)

Nope. It works just fine at Bob Dole's house.

Be a man...
 

You've been taking lessons from BroWhippenidiot.

This is the absolute best way to do it. It bugs my wife because she then can't get the cap off, but too bad for her.

No kiddin - my whiskey cokes and whiskey 7's usually aren't around long enough to lose fizz.

But that being said, I use the squeeze method.

Truly, I think this is the best answer on this thread. :clap:

This doesn't work (except when the bottle is nearly full). See yunghungwell's explanation of why the fizz is lost in the first place.

The pump is the solution I would have gone with, but Phobia's (and el borracho's) cost-free solution is even better. Brilliant.

By squeezing the air out before you tighten the cap, you are leaving no room for the CO2 to escape after the cap is on.

In a related subject (kinda), they make a pump for wine bottles that works the opposite way. It pumps the air out of the sealed bottle so that there is less oxygen to spoil the wine.

I don't know what you would do to preserve sparkling wine or champagne. I guess you should transfer it to a 2 liter bottle and use Phobia's solution on it because it would fix both the spoilage problem and the fizz-loss problem.

I remember watching Mr. Wizard a long time ago and this question came up. He showed the best way. Simply tighten the cap and turn the bottle upside down for a split second and then right side up. You'll feel the pressure in the bottle start to fill up. The same way it was before you initially opened it.

This works the best.

I knew it!!!

"Must be a duck under the chair", "that dog won't bite you", "you'll run faster if you put your shoes on backwards"...

I learned to never listen to Phil after that last one.

You may feel the pressure, but when you drink it it will be flat.

You are correct, Sir. All turning the bottle upside down does is speed up the time of dissolution of the CO2. In essence you are just reaching the condition of equilibrium faster. Once you open the bottle, conditions change and bye bye CO2.

just drink water.

I don't drink 2 litres in 1 day or 2 days. Thats the problem . I usually drink a half a glass a day. 2 litres are less expensive than cans so there's the dilemma.

squeezing doesn't work. The co2 wants to leave the liquid.

You have to pressurize or more co2.

One drop of Dry Ice and kabooom or good fizz.

I am getting a fizz keeper/pump cap. But even that doesn' work for long.

If CO2 was leaving the liquid after you squeezed the bottle, it would return to full form. CO2 needs an air mass into which to intersperse. If you take all the air out of the bottle, the CO2 has no where to go.

Phob's method works although it makes for unbalance bottles at times and wont apply when the bottle is 1/3 or less full. That where the pump exceeds these other methods.

Bullshit, the CO2 does not need "an air mass into which to intersperse". The CO2 is going to come out of the soda regardless. I have heard of Phob's idea working before, and I am trying to reason out why it works in my head. I will get back to you when I have a better explanation worked out.

If you're going to try the Dry ice theory, I'd also recommend a placebo.......wad up some aluminum foil and put it in a bottle with a half cup of snowbowl.

Close both lids tightly, set them on the table on either side of you and have someone video from a distance, so we can see the results.

Explain how I can squeeze a 2 liter until the liquid is up to the neck, leave it in the fridge for a week, and there is still the same small amount of airspace up there and the soda is still fizzy.

I am thinking that it has to do with the pressure needed to return the bottle to its original shape. If the bottle can hold pressure against the contents of the bottle then it is essential doing the same thing as the pump cap.

Try this...take an empty bottle 2L bottle, squeeze the bottle slightly without making the plastic crackle. Next replace the cap without letting go of the bottle. Finally open the bottle like you normally would.

Result, the bottle returns to its original shape because atmospheric pressure is enough to push the sides of the bottle back out.

Repeat the experiment a second time, only this time squeeze the bottle enough to make it crackle, putting some creases in it.

Result, the bottle does not return to its original shape.

Why? It takes more than atmospheric pressure to push the sides back to their original shape.

How much more pressure is needed? Well, blow into the bottle to return it to the original shape. It takes the extra pressure that you generate in your lungs.

i got the answer. Guess i wont buy a fizz keeper. They don't work well.

Here are the answers from chemistry people. Strange. One says squeezing wont work and the other says it might.

http://www.newton.dep.anl.gov/askasc.../chem00544.htm

Another link on keeping fizz.
http://www.stevespanglerscience.com/experiment/00000103

I could have told you all at one time.....my X worked for Coca-Cola.....It was amazing what they did and the cost of a soda was 5 cents....go figure. :rolleyes: No wonder they make money and no one else does!:mad:

Coca-cola is the only company that makes money? Wal-Mart should be notified immediately.

4321

I've noticed a small wierd trend of fast food workers resenting cola makers making so much money off their product. There's a Taco Bell where the manager asks you if you'd like a soda, but doesn't charge. "That stuff is like a nickel anyways." My buddy's sister works at St. Louis Bread and she's always bitching about paying for soda. Same remark "That stuff is like a nickel anyways."

You can't. My suggestion is a short term solution. It merely delays the inevitable. It's essentially the same thing as the expensive gadget, but free.