Can you freeze beer?


My mother used to tell me that her father, at their summer place, sometimes some bottles of pilsner where “forgotten” in the shed at the end of sommer season. Then after summer her father and grandfather used to celebrate the the winter-frozen beer. They where the best, since they had that special “frozen” flavour.

Then last week a friend happened to leave some bear out on the balcony in -8 and noticed some interresting effects. So I thought I would re-test this.

However, when I did talk about this with my father he told me that he, at times, had forgotten a couple of beer in the boat over the winter. And those beer didn’t taste good at all.

The theory is that something changes when beer is frozen. What and how is still unknown.


Take two bottles of beer and place out in the cold. (The -18 of my freezer could perhaps be too cold. It should become cold, but not freeze to solid ice, and crak the bottle.)


I took two bottles of beer and placed in the snow on my balcony. (Photo taken once one bottle is removed.)

Pour the first cold beer. The cold had caused the liquid to change viscosity a bit. It looked like pouring syrup of some sort. I did a high pour, which should have given a lot of foam, like 20-30 cm of foam. But it didn’t foam much, only the 2 cm shown in the picture. You can see that ice crystals has formed and gathered on the top.

How to tell if a beer is cold…

The other beer I did put in the fridge overnight. To ensure a  slow heat up I did pack the other beer in snow.

Then the next day I had a “normally” cold beer.


The beer that was subzero didn’t work. If was too cold to drink. I even got slight cold burn from drinking the cold liquid, like when you drink too hot coffee. Once the beer had warmed up a bit it tasted like cold beer.

The second beer was more interesting. Since it had had the time to heat up I could taste it properly. It had acquired a slightly sweet taste that was not there before. Quite nice. I understand why my grandfather enjoyed the slightly frozen beer. I suspect that the beer my father had left in the boat had gotten colder then then the beer left inside the (less badly insulated) summer house.

The conclusion might be that slight frozen beer freezes.

Suggested further research

I would like to really aggressively freeze beer. To -18 rather then the -8 here. But I would have to find a way to freeze the beer without cracking the container first. (Ideas welcome.)


eggs, part 1


Can you freeze eggs?


There is really no reason. I just wonder what would happen.


Two eggs. One for the freezer and one reference for the normal cooler.
To test the result, fry the eggs and see if there is any difference between the two speciments.



The specimen for the freezer in its safty container.

The cool-store goes back into its original container and wait for the night.

In the morning I took out both eggs again. The cooler-stored referenced looked exactly the same as previous evening. The freezer specimen looked slightly different. The shell had broken!

Testing the result

Since the plan was to fry the eggs, I had to open the eggs, right?

Now how to do open the froozen egg?

I made some feeble attempts to break the shell. I used some tools including a big knife, and the handle of a mortar but I couldn’t do any more then scratch the shell.

I left the egg out to heat up during the day.

A couple of hours later the egg had heated, some eggwhite had runnen out from the egg.

I cracked the egg. Notice that the yolk is very, very round.

I did look more closely, the yolk seemed to have coagulated. It was not runny anymore.


It doesn’t freeze!

An egg in a shell doesn’t freeze. Or rather, it is un-usable in it’s frozen state.

However there is room for more science here!
There will be new episodes on the egg matter.

Suggested further research

  • Freeze egg in shell. Heat slowly in cooler. Break and fry.
  • Freeze egg in shell. Cook as frozen.
  • Freeze egg, no shell. Heat slowly and fry.
  • Freeze egg, no shell. Fry as frozen.

Testing the hard stuff so you don’t have to



Can you freeze a banana? I have no idea, but it liked the concept, I had to try!


Get two bananas, freeze one, let it re-heat. Compare.



Get two bananas. Mark them so we’ll know which is which.


Place A in the freezer

And one outside in the room (20°C/68°F).


The morning after I removed them from the freezer, and it looked a litte darker then when I placed it there. And it was technically frozen, hard as a something. I left it one the mornings paper…

When I returned, it had started to give off liquids onto the paper. So I moved it onto a waterproof plate. And I attached a thermometer to see if it was warm on the inside. (13°C)


Back in room temprature

It’s warm, and blacker still. It doesn’t look good…


Testing the result

I sliced the two bananas. And there was a definitive difference in the consistence of the two bananas. The froozen one wasn’t as solid as the reference one. But really, there is only one way to check if a banana is good. Eat it!

after_5.jpg after_6.jpg

The taste was quite similar. I’ll describe it as “banana” although not quite “banana”.

The structure. Look at the color. Looks like charcoal baked banana. Right?

The feeling in in the mouth is quite similar to baked banana. The taste is not as sweet as baked banana though, more like regular banana.


It doesn’t freeze!

The banana is destroyed, it doesn’t taste good.

Testing the hard stuff so you don’t have to



I got a comment that I freeze all flours and grains I buy.


The theory behind freezing is simple. It kills things.

If you by flour, especially if you buy whole grain, there is a risk that some small bug has survived through the processing plant and is there, inside the bag. Kill it!


I had bought a new bag of durum wheat flour and placed it in a plastic bag for the test.

flour before flour_during1.JPG

After a few days in the freezer I assumed is was frozen, and took it out to see that had happended.
It seemed to be ok. The package was still intact.

But the flour had still to be tested. Bake!
The flour was cold to work with, would the yeast survive the cold-shock?

flour_after_inuse_4.JPGAnd Yes. It became good bread.


It does freeze!