Thursday, March 5, 2009

A Pint is Not a Pound the World Around

An "Imperial pint" (also just called "pint" in many parts of the world) is 20 fluid ounces.

[Updated December 16, 2012]
Have you ever heard the saying, "A pint is a pound the world around?" It's not really true.
In 2009, I published a blog post that started with that line. It was about an email I got from Ben & Jerry's describing how one of its "competitors" (Hagen Daz) had downsized their ice cream pints from 16 ounces to 14 ounces. That post, and the comments that followed, are reprinted in full below because I do not want to sweep under the rug anything anyone said. It would not be fair to the commenters, and it was an insightful conversation.
I essentially said that the saying "A pint is a pound the world around" is misleading and "wrong." I hold by that statement, although I did get a few points wrong, or at least not right enough. I'll explain in a moment.
An "American pint" (also just called "pint" in the U.S.) is 16 fluid ounces.
The real take-away for me was this: A "pint" is not universal. It's location dependent.
First, there is the confusing difference between ounces and fluid ounces. Ounces measure weight (mass) and fluid ounces measure volume. This distinction can become confusing when converting units of measure, and it is the primary distinction that I did not make clearly or get right in the original post.
Second, what many Americans miss is that we say a pint is 16 ounces, but the English say a pint is 20 ounces. In America, we distinguish between the two by calling the English pint an "Imperial pint."
Rest assured, the English just call it a pint. Order a pint in any pub in the U.K., and you'll get a 20-ounce beer. They don't call it in an Imperial pint. It's just a pint.
Baskets of "ground cherries" in Montreal.
Then there are "punnets." I didn't even talk about punnets in the original post. A punnet is a term used in the U.K., and it doesn't have an exact unit of measure. It's basically a small basket-ful. You know those cardboard containers that might hold cherry tomatoes or blackberries? Those are punnets. The actual size varies, but from my experience in markets, the American "basket" is typically smaller than the English "punnet." But very generally speaking, a punnet hold somewhere in the neighborhood of a pint... a dry pint, that is.
Just to really confuse you, the picture shown here of baskets of ground cherries is from Canada.
So what does the saying "A pint is a pound the world around" mean?

I have not found any well documented information on where that saying originated (post a comment if you have a good source, please!), but I would guess it is American because it refers to the American "pint" of water (volume) weighing 16 ounces (mass). You could also read into the part about "the world around" being part and parcel of the American outlook, too, eh? (I'm American, but I do see that my countrymen assume that our nation is the center of the world.)

There's a second saying, though, that I'd have to guess is British in origin because it refers to the 20-ounce pint:

"A pint of pure water weighs a pound and a quarter."
If you would like to correct anything I've written here, I am happy to revisit this whole topic again, but please be kind in the comments. Writing with a nasty or condescending tone will not persuade me to listen to your argument. I am totally happy to recognize and call attention to the fact if I have made a mistake, but I will be much more likely to do so if you approach me in a kind manner. -Jill Duffy  

ORIGINAL POST AND COMMENTS
A Pint is Not a Pound the World Around
March 9, 2009
Have you ever heard this saying: "A pint is a pound the world around"?
It's not really true.
In the U.S., a pint is 16 ounces, which is indeed a pound. But that's not the end of the story.
Most people have heard that the drinks in the U.K. are bigger than in the U.S. It's true. An "English pint" is 20 fluid ounces.
But some "pints" are smaller.
This morning, I got Chunkmail (that's Ben & Jerry's email newsletter), implying that Haagen Daz was shrinking the amount of ice cream contained in its pint containers:
One of our competitors (think funny sounding European name) recently announced they will be downsizing their pints from 16 to 14 ounces to cover increased ingredient & manufacturing costs and help improve their bottom line. At Ben & Jerry’s we think downsizing pints is downright wrong. We understand that in today’s hard economic times businesses are feeling the pinch. We also understand that many of you are also feeling the same, & think now more than ever you deserve your full pint of ice cream.
We are even more committed today to lead with our values through the quality of our ingredients & how we source them to make the best ice cream possible. So, while our competitor may be experiencing a bit of shrinkage, rest assured that your Ben & Jerry’s will still be standing tall in the freezer. Enjoy!
I just happened to have a pint of Haagen Daz in my freezer, so I checked to see how much ice cream its "pints" contain.
It reads 437ml! Sneaky!
According to a conversion calculator, that's 14.78 ounces.
But really, that deceptive. Shame on you, Haagen Daz! Shame on your brand, and shame on your name.


COMMENTS ON ORIGINAL POST
  • LeighMarch 6, 2009 11:27 AM
  • Wait a minute. You're on the B&J's newsletter listserv?

  • Jill DuffyMarch 6, 2009 1:52 PM
    Yes. It's not a listserv. It's the company's marketing email.

  • GraceMarch 6, 2009 2:22 PM
    Oh my god thank you. I have a long, long story about why I hate Haagen Daz, but it will have to wait until we're actually just together in person.
    I've been baking all our bread! Is that moving from food-enthusiast-y to more house-wife-y? I don't care, it's delish.


  • LeighMarch 8, 2009 1:45 PM
    Okay...you're on the B&J's marketing email list?

  • Jill DuffyMarch 9, 2009 12:46 PM
    Yes. I'm on the Ben & Jerry's marketing email list. Is that odd?

  • LeighMarch 10, 2009 7:14 AM
    I love it!
  • AnonymousMay 8, 2010 9:03 AM
    You do understand that the comment relates to water, and water only. Oil weighs less than water, hence the reason it floats to the surface. Pints are volume measures, and the saying only holds true with water.
    Now, about your ice cream. The weight depends on how much air is whipped into the custard. The more air, the less weight, but this will not affect the volume. Understand?


  • Jill E. DuffyMay 8, 2010 12:03 PM
    To the anonymous commenter, yes, I understand the difference between weight and volume. There are actually two kinds of ounces: one is a unit of mass and the other, the "fluid ounce" is a unit of volume.

    Still, I think you're missing something that I did not make clear in the post.

    There are also two "pint" measurements, just as there are two "gallon" measurements: an American pint (16 fluid ounces) and "imperial" pint or English pint, which is 20 fluid ounces. Similarly, there's an "imperial gallon," which is roughly equal to about 1.25 American gallons.

    Whipping air into ice cream is a good point, and I see what you are saying. The more I am reading up on this (I've been on Wikipedia for about 30 minutes now), the more confusing it gets.

    The pint containers hold 500ml (volume). I'm actually still confused now about where 473ml comes from. Is that the volume of the ice cream before air is whipped in?

    There are regulations about how much air (percent) can be whipped in before the maker can no longer label the product as "ice cream" in the U.S.

    Long after I wrote this post, I noticed that B&J's weight on ice cream is not 16 oz. either, and like Haagen Daz, it's given in ml. The size of the container is 500ml, but the product inside is 473ml.

    I've found Haagen Daz containers listing 473ml as well as 414ml (in a "14 oz" container).

    I think the most important thing to note here is how difficult it is for the consumer to get straight information!


  • AnonymousNovember 24, 2010 11:35 PM
    I know this is old, but it's awesome how you say that you understand the difference between weight and volume and then say:

    "I noticed that B&J's weight on ice cream is not 16 oz. either, and like Haagen Daz, it's given in ml."

    It's not weight. It's volume. That's why milliLITERS are involved -- that's a unit of volume. Ya know how you can buy a GALLON of ice cream? It's sold by volume.


  • Jill E. DuffyNovember 26, 2010 9:35 AM
    This comment has been removed by the author.

  • Jill E. DuffyNovember 26, 2010 9:40 AM
    I wouldn't say it's "awesome." I would say I made another mistake. I should have said "unit of measure."

  • Anonymous January 3, 2011 12:25 AM
    Actually, you're both wrong. A pint of water is not a pound.
    1 pint = 16 fluid oz.
    1 pound = 16 (dry) oz.

    1 fl. oz. of water does not equal 1 dry oz. of water. To break this down, it's easiest convert it all into metric units.

    1 pint = 473.176473 mL
    1 pound = 453.59237 g

    Now, since the density of water is 1 g/mL (i.e. 1 mL of water = 1 g), you can see that 1 pint (473 mL) does not equal 1 pound (453 g).

    This has nothing to do with imperial measurements, the saying is simply wrong. A pint of water weighs approximately 1.04 lbs., and this is because 1 fluid oz. and 1 (dry) oz. are two very different measurements. People think that the density of water is 1, and, therefore, 1 fl. oz. of water = 1 oz. This is incorrect. The density of water is 1 g/mL, but not 1 oz./fl. oz. In the US customary system, the density of water is actually .9586 oz./fl. oz.


  • AnonymousJanuary 17, 2012 12:35 AM
    1st, Clearly people in general cannot understand the difference between units of weight and units of volume...
    2nd, The saying " A pints a pound the world around " is just a simple saying to help people remember the approximate weight of water, or any other liquid with a similar density.
    1.00lbs vs 1.04lbs would take a bit to make a difference unless you were in a laboratory- in that case you probably shouldnt be using the saying in the first place.

    AnonymousDecember 15, 2012 8:49 AM
    Thank you.! Finally someone gets it. Phew.

10 comments:

Anonymous said...

Get off the insular and antiquated "USA ONLY!" measuring system and use the metric system like the rest of the world does. Problem solved... and no more relying on simplistic yet inaccurate sayings from 1794.

"Progress" is not two four letter words stuck together.

T said...

The saying is not related to weight in a proportional sense. It is merely a saying to remember that a pint has 16 oz, and a pound also has 16 oz.

It is similar to the saying "a right in the house might eat the ice cream" in order to remember how to spell "arithmetic".

Jill E. Duffy said...

Oh brother...

rolandfly said...

Judy Judy Judy


The Pint a Pound the World Around
Did you hear this when you were a kid ??
I did and wondered if it was true

The pint is a very old standard at lease 5000 yeas old



The Ancient Sumerians established their unit of volume by a cube with each side 1/10 a Royal Step or 9.94 cm long . Its volume was 982 cc or 1.0378 Quarts. This volume of water at room temperature would weigh 2.1402 pounds.

The Ancient Egyptians loved their Beer and measured it in a jar they called a Hinu. As I discussed on my Web page "Ancient Metrology" they timed their pendulums with a star rather than the Sun which reduced the volume of their cube to 960 cc. The Hinu was half of this or 1.0145 Pints. This volume of water at room temperature would weigh 478.93 grams or 1.056 U.S. pounds

The British Pint came down to us from the Ancient Egyptians over 5000 years ago loosing only 1.45 percent of its volume on the way. This volume of water at room temperature would weigh 1.0407 pounds. Maybe the Brits weren’t weighing water, maybe they were weighing Beer. Beer has bubbles, and Alcohol is lighter than water.

A Pint of strong English Beer does weigh a pound the world around.

The old saying was correct after all.

Roland Boucher

From Reference Data for Radio Engineers fifth edition Howard W. Sams & Co 1968
One U.S. pound = 453.6 gm
One U.S. pint = 473.125 cu cm
The weight of this volume of of water at room temperature is 472.07 gm or 1.0407 pounds.

Anonymous said...

To all you metric system lovers Try to remenber that the States that first made up the USA were over 200 years old when the metric system was agrees to outside france.

We were BRITISH colonies and used British measures and got here on sailing ships.

a lot of early houses were built by ships carpenters which any tall person who has hit his head going through a low door will attest

I grew up hearing the expression "a pint a pound the world around"

If yor are drinking water your pint will ndeed weigh about 1.04 pounds BUT

IF YOU ARE DRINKING GROOG OR A STRONG BEER IT MIGHT WEIGH A LITTLE LESS THAN A POUND

If your grogg or beer is heavier ITS BEEN WATERED DOWN- you are beign cheated

now lets get to the Metric system


The First metric system was already 5000 year old when the Frenc reinvented it at the time of the French Revolution

Let me explain.

Ancient Sumeria used a system of measurement based on the length of a pendulum whose period was based on the rotation of the Earth relative to the sun. This period of 1/360 parts of a solar day could not be changed by King or commoner. This made it the first universal standard based on properties of the whole Earth. This standard, and its cousins which made use of the stars then the planet Venus to time the rotation of the earth could be easily be reproduced world wide and spread to China and Japan in the East and to Britain in the West. There is even some evidence that it spread to the new world well before the common era.

Historians write a compelling saga of the attempt to measure the circumference of the Earth in French revolutionary times, to establish the length of the meter. They fail to mention that this measurement had been made before the construction of the Great Pyramid and had been refined in the first millennium BCE achieving an accuracy of better than 0.05 percent.

While these facts may have not been known to the French Academy of Science at the time and were thus not central to the story they do indicate that the search for a Universal Standard of Measurement was an age old endeavor and that the earth itself was the measure of that standard.

While the metric system attemps to divide the polar circumference of the earth into 40 million meters the ancient navigators and kingdoms divided the polar circumfeence of the Earth into 360 degrees, each degree into 60 minutes (each one nautical miles) and each minute into 60 seconds(each 100 feet)

by the way the volume of one pint is very nearly 1/60 of a cubic foot

Anonymous said...

If you're ever faced with a baking recipe that has all the ingredients measured in weight and not volume and you don't have a scale, you'll find that "a pints a pound" is close enough.

Anonymous said...

What you are all missing is that the saying has nothing to do with volume or weight. It originated with the birth of the British Empire and refers to the fact that the price for a pint of beer is one pound Sterling, throughout the empire.

Philip Brown said...

A pint is a pound sterling? You must be joking. When I started drinking in pubs it was 1s 10d (a shilling and ten pence) and so I could have had change from a pound if I bought a gallon, and an imperial gallon at that!
People commenting from America seem to have lost the original point of the blog that USA and UK measures are different but there is another twist that the blogger missed: A US pint is 16 fluid oz and a UK pint 20 fluid oz but a British pint is only about 20% larger, not 25%. The reason is that, in order to completely confuse the situation, an American fluid ounce is a bit bigger than its British equivalent.

Unknown said...

A minute's a mile. Does that make you smile?

Tahmi H said...

There once was a unit of measure..that many sought to prescribe and to treasure...The Earth doesn't care...that it's land sea and air...is defined for our own silly pleasure.

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