Chemist Explains Why Refrigerated Chocolate Tastes Better

(Photo: Dan the Chemist)

The only thing better than a chocolate bar is a chocolate bar that’s been chilled. Why? Dan, a doctoral student in chemistry, explains that the cocoa butter in chocolate exists in six different forms depending on the temperature. When chocolate is about 34-36⁰C, the structure of it begins to break down. This is called “fat bloom.” You can see it when chocolate appears to turn somewhat dusty and splotchy, such as the example above. Dan writes:

You then might ask how you can tell this has happened? The change in crystal structure is usually accompanied by something called ‘fat bloom,’ which is where the chocolate begins to look dusty, and pale spots appear on the surface as shown in the attached image. We’ve all been there (you’re incredibly lucky if you haven’t). It’s off putting, but still safe to eat. It happens because of partial melting in the solid which cases the fats within it to rise to the surface. It’s this strange occurrence that leads me to believe that keeping my chocolate in the fridge is in fact the correct way to keep it, and also why all the chocolate I bought on my exchange year in Australia just didn’t taste as good as the stuff at home in the UK due to their hotter climate!

-via TYWKIWDBI

We dish up more neat food posts at the Neatolicious blog

Comments (5)

Newest 5
Newest 5 Comments

Colder temperatures dull your sense of taste. That's the reason why soft-serve ice cream tastes so much better than very cold ice cream. It's also why completely melted ice cream tastes TOO SWEET to drink. I expect refrigerating milk chocolate will have mostly negative effects on its taste, while dark chocolate may benefit from tasting less bitter, unless you let it warm-up again before eating.
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The difference between the fifth and sixth chocolate phase is what tempering chocolate is all about, and it is surprising it isn't referred to as such in the blog post. A lot is already written about tempering process, and it is a good, practical introduction to a bunch of science topics (things like even ice can have very complex variety of phases, just not as easy to access at home).

However, even when I lived in a hot climate, it took weeks for chocolate to lose its temper at a warm room temperature, and when it happened it is visually quite obvious. Whether or not your chocolate is cold at the time you eat it is not going to change the temper. But temperature can change what flavours you notice most, and you can already find endless arguments online about the temperature of things like beer and whiskey.
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I hate to go all plasmagryphon (sp?) on this one, but I disagree that this is a general rule.

Much more experimentation needs to be done, by everyone, on a very large sample size, over a long stretch of time. As a personal sacrifice, I will consume large amounts of different brands of chocolate, in different ways, over the next decade, in order to verify the results.
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D'yer know - one of the things that makes /real/ AD-HD kids different is their inability to learn to control their impulses.

Saying "Make them wait and learn from it." is like saying "Don't speak up and clearly for a deaf person, just keep mumbling and they'll have to learn."

That doesn't mean I agree with this idea - just that if you've ever had anything to do with the real thing you wouldn't think it's OK to wait for a hour in a line.
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So what about fat people? They get stressed standing around, I'm sure.
Same for old people, or people who hate crowds, have claustrophobia, or people that dislike lines, or people that have a sense of self entitlement. I'm sure these self entitled people would feel rather stressed to think that they are cattle just like everyone else.
By treating someone different and giving them special privileges, you are, in fact discriminating against someone else without said magical difference.
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My parents are full-time foster carers of disturbed and damaged children. They currently have an 11 year old who has pretty severe ADHD, and yes, when they took him to an amusement park, they took advantage of the queue-jump system.

Why? Because the rides have queues for hours. He physically CANNOT stand there doing nothing for hours. he can barely manage it for minutes. And it isn't HIM who would be bothered by his incessant talking, twitching, pacing, prodding, shacking, rattling or whatever. it's all the poor people who are forced to stand near him in the queue. And believe me, after a few minutes of it, you'd be more than happy to let him take a place ahead of you if it meant he would go away from you.

How is it fair to keep him at home and deny him a treat for good school results [his whole class got taken to the amusement park for good test results]? He is brain damaged. So that means he can't have fun and live a normal life?

He is perfectly 'controlled'. He is not a bad child, wouldn't hurt anyone, wouldn't attack anyone or steal anything. He does what he's told and tries his hardest to be good. He's just BLOODY annoying, despite the drugs he's on to calm him down.

As for 'they'll have to wait at some point', I totally agree. this is very true. and we work very hard to lengthen the time he can wait and to say no when appropriate and to put delays on things to teach him more about time management. But those queues are LONG. not uncommon to wait two or three hours. And we'd rather teach him those things in a safe, private home environment than force him to break down into a sobbing twitching heap in the middle of a crowded area.

REAL ADHD is very dramatic. it's more than just being a bit impatient or a bit excitable. It's permanent brain damage and a real disability. Would you force someone on crutches to stand and hobble the whole two hours through the queue?

YES, it seems unfair to the healthy kids. but LIFE has been unfair to the disabled kids, give them a fucking break.
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oh! one last thing. you can't just waltz up and say "I have ADHD, lemme go in first" you need extensive medical certification and ID as proof. my parents took loads of paperwork and still found it hard to talk the park into handing over the pass. they don't give them out lightly.
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The arguments above must consider the information (lacking from the caption) that medical certification is necessary. This should hopefully ensure that only the truly afflicted will use the scheme (to the benefit of all) rather than encourage rampant queue-jumping by the impatient and irresponsible. Whether the certification is too easy to get then depends on what the situation in the UK is like.
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I don't know much about ADHD children. I've never been exposed much to ADHD and I won't claim I know better than anyone else.

However, if it is true that waiting in long lines is physically painful for ADHD children, why would the parents put them through it? There are ways to get around just sitting and waiting.

Go to the park during low season or on a weekday.
Head to the popular rides when there are less people in the park and less popular rides when it is crowded.

As a camp counselor, we had a ton of games up our sleeves to keep kids from being bored at any point. Playing rock, paper, scissors over and over would be boring, but mixing up games will keep everyone's mind off the waiting. Lines can also be a good time for snacking and making sure everyone is hydrated and sun-blocked.
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I totally agree with Lostfiniel.
Although my first reaction would be that it all depends on the number of ADHD kids + friends out there. I can accept letting some people in front of me, but I don't want to wait an extra half an hour at each ride because a bunch of kids brought their ADHD friend to cut the lines ;)
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hey seventh its not friggin brain damage you idiot. its a miscommunication in the receiving and sending of messages in the brain receptors. as a person with ADHD, i do agree that they should wait because it will bound to happen somewhere else. as for what to do, the kid needs a stimuli. so talking with friends, play some thumb war, or even let the kid entertain him/herself with a ds wouldnt be a bad idea. my 0.02
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okay, maybe 'damage' was a strong word but "its a miscommunication in the receiving and sending of messages" certainly sounds like a physical mistake in biology [rather than a chosen behaviour] to me. My point was that it's a biological disorder, not a psychological 'beat it out of them' behaviour.

and i think people are missing the main point of the whole scheme. they queue-jumping isn't to help the ADHD/autistic kids, it's to stop the rest of the queuers from being driving insane by them. The scheme is helping everyone else out!

And as for "why inflict queues on them in the first place", this is an idea to allow ADHD and autistic kids, who otherwise would NOT be able to go and enjoy the park, to visit it and have a fun day like a normal kid for once, instead of being locked up at home for their behaviour. it's making an allowance so they CAN go.

and zeroxero: sure, a DS might keep our kid entertained for 15 minutes. but two hours? standing in line shuffling along? no way. You're obviously coping well with it. Our kid is not as far along that path. We're working hard with him, but its a slow process, especially when we have to work so hard at getting him up to normal in so many other aspects. why should he always be left out when his whole class are treated?
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Seventh I have "real" ADD and I appreciate your empathy for people with this diagnosis. However ADD is most certainly not brain damage. It is a difference in the brain. but then everyone is different.
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It's not just for ADHD. My 9 year old son has a mood disorder that that is very different from ADHD. When we mentioned to his psychiatrist that we would be going to Disney for a week she asked if we wanted a letter from her so he wouldn't have to wait in line. I thought she was joking but she wasn't. I'm proud to say that my son decided on his own that he wouldn't need the letter. I will, however, say it was a relief to me just knowing it was a possibility. Just in case we got there and he couldn't handle it. I think the main problem with this system would be the number of people using it who shouldn't be. All children should be expected to perform to their abilities. But no child should be expected to do something, that for him or her, is impossible. Some kids have very serious disabilities that simply do not present themselves so obviously as blindness or deafness.
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