Rapid Beer Coolers

A blast from a normal gas bottle has a similar effect - though there are significant health and safety issues :)

Cheers
Greg

Just dont do that on glass containers...you may get cut from flying shrapnel

You can use gas safely:

Cold Beer

Cheers

Pete

when I was working at the physic department of the Tasmanian uni we would make dry ice by discharging CO2 from gas bottle into a damp chamois The dry ice would form on the chamois If I remember correctly the chamois used was quite large . We used a metal ring approx. 150mm in dia and form a bag by poking the chamois through it. we used the dry ice to test electronic components tolerance to cold at altitude on balloon radio transmitters

An ally can in this slurry will only take a couple of mins to cool enough !!!

Ian

you are right on the money DION.
I fished for large fish for a quite a few years, and we experimented quite a lot with slurry's etc (as did some of the gov departments).
At the end of the day, fresh water ice in a salt water slurry worked best.
It was important with the fish (export tuna and swordfish) that they didnt freeze, this ruled out saltwater ice as this would slurry at about minus 5C.
This is likely important with beer also!

With a large fish the formula is roughly, 10kg per hour to get to around zero. A 100kg fish 10 hours.

Can/stubby 5 minutes or so!

I agree, we keep the 40 litre Engel in the truck 24/7 and the Beer and other drinks are always nice and Chilled, just replace what you take out, no big deal just a bit of common sense.

"12 stubs....suffiecient for 2-3 people to have a "good" session."
Not where I come from it isnt......LOL

Hairy, they might be Darwin Stubbies, bit hard to fit them in a 15ltr engel lol lol.

Hairy , 3 cold out ,3 hot in , 3 to 4 stubs /cans ea per hr means 1st rotation is cold by the time I get to it , then after enough beers its time for the scotch and coke with ice from the freezer section of the 80 lt waeco , LOL.

Phew!!!
For a minute there I thought you were saying 4-6 beers were enough!!!! LOL

you saying i got to pee on it....but that will a few drinks to get me going...which means i'll have to drink em hot anyway

Spot on wrt paras 2 and 3. Also Dion's post #3. Maxm surface contact through metal (not glass) is the trick - hence cans (also advantage of less dead weight).
Air, at 1/4200ths of water's specific heat, is not very effective for rapid drawn down of temp.
Andrew

I think you are thinking of ammonium nitrate- the key ingredient of fertilizer and when mixed with diesel makes ANFO ( Ammonium nitrate and fuel oil) an extremely powerful explosive. When mixed with water it goes cold. This is what those instant ice pacs contain. Cheers marn

Marny

AMFO as I know it is a commonly used blasting agent and as you suggest it is produced by mixing ammonium nitrate with diesel.

I am concerned about the second part of your response suggests that when mixed with water ammonium nitrate goes cold. That may be true but you need to be careful. Ammonium Nitrate mixed with water in the wrong ratio can be violently explosive. Ammonium nitrate is a fertilizer in its own right. Urea is another different product.

There was an issue with a ship oaded with ammonium nitrate lin a harbour in the US, about 1909 I think it was, where the ship caught fire. In an effort to extinguish the fire authorities flooded the ship trying to sink it. The resultant explosion killed many people and flattened numerous dockside buildings.

Duncs

Hi Duncs. The story that i heard with the boat was that it had a leaking diesel tank and that mixed with the fertilizer. Hitting the dock too hard set it off. As i said that is only one rendition of the story that i heard-dont know how true it is. As for mixing it with water, Does that mean that "watering in" your fertilizer is a potentially dangerous thing to do? I might end up with a new fish pond in my lawn!! Cheers marn

Marny

I don't want to get hung up on it. I first came across the story in a training manual at work. It was used as an example of why firefighters should know what is involved in the fire they are fighting.

The standard method of fighting fires in bagged grains etc was to use large volumes of water from hard hitting hoses to penetrate to the interior of the fire. In this case the water served to accellerate the decomposition of the ammonium nitrate. The heat from the reaction could not escape and eventually built up to the point of causing the explosion.

When you water in the fertilizer on your lawn it is probably not 100% ammonium nitrate and any heat generated can dissipate to the atmosphere. The heat generated is acutally one reason why you should use lots of water when watering in.

Actually when I think about it I wonder if covering your drinks with fertilizer and watering it in would not in fact cool them but heat them. Maybe it depends on the kind of fertilizer you use. I'll stick to dropping dropping mine into the creek before putting them in the fridge.

Duncs

Naaa...tried that years ago......we used to put a can in a sock, dip it in petrol and hold it out the window while driving..........just got a like warm beer that tasted like petrol?
Better off drinking warm beer.

aaaa..........the old sock soaked in petrol trick. ......was it a clean sock.... a dirty sock wouldnt allow unrestricted air flow......lol......what did you do wiith the odd sock.....any way I agree with you that warm beer is better wiThout the background taste of petrol....anyting is worth aT least one try...................well almost anything

According to all things important -MYTHBUSTERS Click here

Busted....

A six pack of beer can be rapidly cooled by burying it in sand, pouring gasoline on top of it, and lighting the gasoline.

busted

The fire did not significantly alter the temperature of the beer; in fact, the fire actually raised the temperature slightly, not to mention burying the beer made the cans sandy.

(With this myth quickly busted, Adam and Jamie tested other cooling methods. A carbon dioxide fire extinguisher was able to cool a six pack to a satisfactory temperature in approximately 3 minutes. In terms of practicality, though, one’s best bet is to use icy salt water, which cooled the beer to an ideal temperature in 5 minutes. Barring that, normal ice water was next fastest at 15 minutes. The other methods tested (the freezer, ice only, and the refrigerator) did not cool the beer rapidly enough to warrant their use in a spur-of-the-moment event.)

Click here to see Mythbusters video

Yep...busted...
Tried that years ago too....used to bury some grog out bush while working on communities.....we would do the petrol thing before digging it up on the way home.................still ended up with warm grog!

Wow there was a mythbuster show on this !!. Looks like Salt / Ice & water is the go...

True, but at home, you don't keep the ale in the oven, as some of our temperature's are like....

How does Techni Ice compare with those blue freezer bricks? been reading their website and it sounds like a great product?

I have a few sheets of the tech-ice stuff. It's pretty convenient but doesn't perform as well as I had expected . Not bad tho

The thing with Techni- Ice is that it freezes down to the temp of the freezer. i.e -18 degrees.Water or freezer bricks only freeze to 0 degrees. So you have a head start with Techni- Ice !!

Ian

Mixing Urea and Diesel won't automatically go bang.
You need a fairly powerful detonator to kick it off.

Urea into a wheel barrow full of cans then add water and wait a few minutes.
Beer is now nice and cool, cans don't last long though.

Disco.

Unless, of course, you are not a farmer and are buying enough to chill drinks for a good sized party

There could be a knock on the door from members of the Special Operations Group fully kitted out, accompanied by men in suits wearing reflective sun glasses