# why is pie always round?

**URL:** <https://boards.straightdope.com/t/why-is-pie-always-round/323038>\
**Category:** Factual Questions\
**Created:** [September 23, 2005, 1:27pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038 "2005-09-23T13:27:59Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![chappachula](https://avatars.discourse-cdn.com/v4/letter/c/d2c977/32.png) [@chappachula](https://boards.straightdope.com/u/chappachula)\
**Post date:** [September 23, 2005, 1:27pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/1 "2005-09-23T13:27:59Z")

</div>

and , no the following answers don’t count:

- because if it’s served in squares it’s called cobbler (but the crust is different)…

- because statistics are diagrammed in pie charts.

– because corn bread are square (reference to an old, old joke, based on “pi R squared” math formula)

---

<div class="post-metadata">

**Author:** ![GuanoLad](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/guanolad/32/42_2.png) [@GuanoLad](https://boards.straightdope.com/u/GuanoLad)\
**Post date:** [September 23, 2005, 1:30pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/2 "2005-09-23T13:30:35Z")

</div>

It’s not always round. Just most commonly so.

I think they’re round because the dishes they’re baked in are too. Which isn’t much of a reason.

---

<div class="post-metadata">

**Author:** ![bouv](https://avatars.discourse-cdn.com/v4/letter/b/bc8723/32.png) [@bouv](https://boards.straightdope.com/u/bouv)\
**Post date:** [September 23, 2005, 1:32pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/3 "2005-09-23T13:32:52Z")

</div>

“Back in the day” it was much easier to make a round baking dish than a square one.

---

<div class="post-metadata">

**Author:** ![Q.E.D](https://avatars.discourse-cdn.com/v4/letter/q/51bf81/32.png) [@Q.E.D](https://boards.straightdope.com/u/Q.E.D)\
**Post date:** [September 23, 2005, 1:37pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/4 "2005-09-23T13:37:23Z")

</div>

> [@bouv](#):
>
> “Back in the day” it was much easier to make a round baking dish than a square one.

Additionally, it’s much easier to press or roll the dough for the crust into a round(ish) shape than square. It’s a natural shape for this kind of thing, which probably is why pizzas, hamburger patties, tortillas and pancakes tend to be traditionally round as well, among many other similarly-formed foodstuffs.

---

<div class="post-metadata">

**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\
**Post date:** [September 23, 2005, 1:38pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/5 "2005-09-23T13:38:59Z")

</div>

I don’t think it’s because the dish is easier to make – I suspect it’s to provide more even baking. It’s much easier to put a lot more heat into the corners (which get heat from two sides) than to the middle of a side (where it mostly comes from one side). No matter how careful I am in making brownies, the corners always seem tio come out drier and more cooked.

In a round pan, all othe things being equal, the baking will be much more even all around. The same goes for all those round cake pans, too.  
Yeah, I know that you _can_ bake and cook evenly, even with rectangular pans (look at all those sheet cakes), but it’s easier and more likely to come out more uniform with a round pan/pie dish. That’s why they do it.

---

<div class="post-metadata">

**Author:** ![FlyingRamenMonster](https://avatars.discourse-cdn.com/v4/letter/f/ce7236/32.png) [@FlyingRamenMonster](https://boards.straightdope.com/u/FlyingRamenMonster)\
**Post date:** [September 23, 2005, 1:40pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/6 "2005-09-23T13:40:03Z")

</div>

Because the circle is a beautiful shape.

What?

---

<div class="post-metadata">

**Author:** ![The\_Chao\_Goes\_Mu](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/the_chao_goes_mu/32/3191_2.png) [@The\_Chao\_Goes\_Mu](https://boards.straightdope.com/u/The_Chao_Goes_Mu)\
**Post date:** [September 23, 2005, 1:44pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/7 "2005-09-23T13:44:48Z")

</div>

My WAG is that when you cut a pie, it’s from center to edge so everyone gets filling and a nice chunk of crust. If say, a cherry pie, was cooked in a square or rectangular pan you’d have some crusty pieces and some goopy blob pieces that are lacking in the yummy crust. I mean, a nice slice of pie sitting next to a scoop of french vanilla ice-cream is just so much more aesthetically pleasing than if it were next to a goop blob of cherry compote. IMHO. 😃

---

<div class="post-metadata">

**Author:** ![Scumpup](https://avatars.discourse-cdn.com/v4/letter/s/ce73a5/32.png) [@Scumpup](https://boards.straightdope.com/u/Scumpup)\
**Post date:** [September 23, 2005, 1:45pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/8 "2005-09-23T13:45:14Z")

</div>

They aren’t always round. My mother used to bake rectangular and square pies. Likewise the US Army, when I was part of that fine organization, used to have enormous rectangular pies in the mess halls.

---

<div class="post-metadata">

**Author:** ![awldune](https://avatars.discourse-cdn.com/v4/letter/a/c77e96/32.png) [@awldune](https://boards.straightdope.com/u/awldune)\
**Post date:** [September 23, 2005, 1:46pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/9 "2005-09-23T13:46:33Z")

</div>

In some pies (e.g., chicken pot pie, apple pie) the crust plays a crucial role in connecting the top and bottom crust. A round pie ensures that every slice will have crust.

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [September 23, 2005, 1:48pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/10 "2005-09-23T13:48:44Z")

</div>

I think even baking of circular objects is just a serendipitous effect of making them circular in the first place; basic ceramic dishes are pretty much _always_ round; and pastry naturally rolls out into a rough circle. Even pasties (that’s savoury pastry-encased foods baked on a tray, not adhesive nipple adornments) are semicircular largely because circles of pastry (which are then folded over around the filling) are just what you naturally get.

Same thing with hand-made pies - roll out a blob of dough; it forms a circle - dump some filling in the middle and fold up the edges all around it - you end up with a pie that is roughly circular.

More so with pizza; making a non-round pizza crust by traditional hand methods is just _too difficult_.

---

<div class="post-metadata">

**Author:** ![David\_Simmons](https://avatars.discourse-cdn.com/v4/letter/d/9de053/32.png) [@David\_Simmons](https://boards.straightdope.com/u/David_Simmons)\
**Post date:** [September 23, 2005, 1:50pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/11 "2005-09-23T13:50:17Z")

</div>

> [@CalMeacham](#):
>
> I don’t think it’s because the dish is easier to make – I suspect it’s to provide more even baking. It’s much easier to put a lot more heat into the corners (which get heat from two sides) than to the middle of a side (where it mostly comes from one side). No matter how careful I am in making brownies, the corners always seem tio come out drier and more cooked.
> 
> In a round pan, all othe things being equal, the baking will be much more even all around. The same goes for all those round cake pans, too.  
> Yeah, I know that you _can_ bake and cook evenly, even with rectangular pans (look at all those sheet cakes), but it’s easier and more likely to come out more uniform with a round pan/pie dish. That’s why they do it.

Doubtful. I think pies were round long before people knew about heat flow. Q.E.D.'s ‘because it’s the most natural and easiest’ is more likely.

---

<div class="post-metadata">

**Author:** ![pravnik](https://avatars.discourse-cdn.com/v4/letter/p/8edcca/32.png) [@pravnik](https://boards.straightdope.com/u/pravnik)\
**Post date:** [September 23, 2005, 2:18pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/12 "2005-09-23T14:18:11Z")

</div>

'Cause if it’s not round, it’s cobbler.

---

<div class="post-metadata">

**Author:** ![SlyFrog](https://avatars.discourse-cdn.com/v4/letter/s/a3d4f5/32.png) [@SlyFrog](https://boards.straightdope.com/u/SlyFrog)\
**Post date:** [September 23, 2005, 2:19pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/13 "2005-09-23T14:19:51Z")

</div>

> [@David Simmons](#):
>
> Doubtful. I think pies were round long before people knew about heat flow. Q.E.D.'s ‘because it’s the most natural and easiest’ is more likely.

Yeah, but you do not have to know the scientific reason for heat flow to know: round shape - seems to cook up better; square shape - not as good.

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [September 23, 2005, 2:33pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/14 "2005-09-23T14:33:40Z")

</div>

> [@SlyFrog](#):
>
> Yeah, but you do not have to know the scientific reason for heat flow to know: round shape - seems to cook up better; square shape - not as good.

Yeah…but… making a square pie would just be extra hassle in ancient types; as indeed would making a square pie dish - corners are just something that can easily go wrong when you’re making primitive pottery, so you make round bowls, pots, plates etc - even if you’re not using a wheel.

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [September 23, 2005, 2:34pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/15 "2005-09-23T14:34:42Z")

</div>

‘types’=times :smack:

---

<div class="post-metadata">

**Author:** ![CalMeacham](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/calmeacham/32/35_2.png) [@CalMeacham](https://boards.straightdope.com/u/CalMeacham)\
**Post date:** [September 23, 2005, 2:38pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/16 "2005-09-23T14:38:42Z")

</div>

**SlyFrog** got here before I returned and made my answer.

It’s not obvious to me that round is the “natural” form for pans. If you’re making a metal pan, rectangular is way easier. Even if you’re making pottery forms, you can easily make them rectangular and use up your oven space more efficiently. I grew up with natural pottery-type clay in my backyard. I speak from experience. It isn’t all pottery wheel and coiled pots.

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [September 23, 2005, 2:45pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/17 "2005-09-23T14:45:20Z")

</div>

traditional ovens would not necessarily have been rectangular; you’re thinking about this from an engineering/design perspective; pots and pans may not _have_ to be round, but generally, they _are_ - historically even more so; it’s irrelevant whether they _could_ have made square pie dishes, because they simply _didn’t_. The question is not ‘what’s the best shape for a pie?’; it’s ‘why are pies (traditionally) round?’

---

<div class="post-metadata">

**Author:** ![devilsknew](https://avatars.discourse-cdn.com/v4/letter/d/4da419/32.png) [@devilsknew](https://boards.straightdope.com/u/devilsknew)\
**Post date:** [September 23, 2005, 3:05pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/18 "2005-09-23T15:05:38Z")

</div>

Contemporary Pie, in the form that we know it is of course [“Pot Pie”](http://www.foodtimeline.org/foodpies.html#potpie).

> [@](#):
>
> Pot pies have a long history in most Northern European cuisines, and if they were a specialty anywhere, it was in the British Isles. And a pot pie must be made in a pot that is completely lined with crust. Originally, this crust was not eaten; it was there to keep the taste of the iron pot away from the food."  
> —“ONE CRUST OR TWO?” Leslie Land, Los Angeles Times, September 24, 1992 (p. H11)

Sweet and savory pies were made by using the inlay of cooking vessels or pots and of course the traditional shape of a pot is round. In the case of the round pie, it seems the chicken came before the egg, and it may be more accurate to ask why pots are round.

---

<div class="post-metadata">

**Author:** ![David\_Simmons](https://avatars.discourse-cdn.com/v4/letter/d/9de053/32.png) [@David\_Simmons](https://boards.straightdope.com/u/David_Simmons)\
**Post date:** [September 23, 2005, 3:12pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/19 "2005-09-23T15:12:20Z")

</div>

> [@SlyFrog](#):
>
> Yeah, but you do not have to know the scientific reason for heat flow to know: round shape - seems to cook up better; square shape - not as good.

Sure but this implies purposeful experiments. If you take of hand-formed lump of dough and squish it out either with your palms or a roller it comes out sort of round. Why go to the extra trouble of cutting it square?

---

<div class="post-metadata">

**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\
**Post date:** [September 23, 2005, 3:19pm UTC](https://boards.straightdope.com/t/why-is-pie-always-round/323038/20 "2005-09-23T15:19:45Z")

</div>

> [@CalMeacham](#):
>
> If you’re making a metal pan, rectangular is way easier.

Actually,I’d take issue even with this; it may be the case _now_ that rectangular is easier, but this will not always have been the case; angular objects made from cast iron (using primitive methods) are generally more prone to casting defects and subsequent breakage than are round ones; even metal vessels made from plate would have been beaten from flat with a mallet and a leather sandbag - round is very much the natural shape for these.

> [@](#):
>
> Even if you’re making pottery forms, you can easily make them rectangular and use up your oven space more efficiently. I grew up with natural pottery-type clay in my backyard. I speak from experience. It isn’t all pottery wheel and coiled pots.

It isn’t _all_ wheels and coils, but they are certainly the most common manufacturing methods, possibly because they’re the quickest and easiest. People have been making pies or things like them since at least when the pyramids were being built and they used _round_ pots to make them in, because that’s what they had.

Further to **devilsknew** ’s quote; pie crusts were also used for short-term preservation of meats; pork pies consisted of ground pork cooked into a sort of meatloaf, completely encased in dense, salty pastry; the meat would remain edible for a while this way, if kept in a cool place - then the pastry would be cut off and discarded and just the meat filling would be eaten.

[Next page](https://boards.straightdope.com/t/why-is-pie-always-round/323038.md?page=2)
