You know it in your heart to be true

I think there's actual logic here. If you're storing a liquid, you're probably going to be getting it out with a big spoon, so the round sides make that easier than flat sides and corners. If you're storing something like lasagna, you're probably cutting servings into squares/rectangles, so the flat sides make more sense.
- As someone who cooks large batches of food to freeze, the problem with round is that it wastes tons of space in the freezer. I just use scores of rectangular cubes and my freezer is completely full.
  
  Why not just fix it with a round freezer
  
  Hexagons are the bestagons!
  
  That's always the trade-off. Square ones fit better. Round ones are easier to wash (the corners non-round ones are slightly annoying to deal with depending on what was on the tupper)
- If you're storing a lot of liquid you'll probably want to pour it out later. In that case square is better as the corners will provide a bit of spout action.
  
  Just use your soup straw
  
  I suppose it depends on how liquid your soup is. Mine usually has enough matter in it to make pouring difficult.
- Use square spoons smh my head
  
  (Spoonposting & I’m on a roll)
- This ladle is reinforced silicone in the back half of the scoop, and soft, flexible silicone on the front half, so you can scoop into corners easily. It's very nice, even for cylindrical containers because there is still a corner where the wall meets the bottom.
  https://gir.co/products/ladle
  
  As god emperor my first decree would be the elimination of all other sizes and names thereof
- How big
  
  My spoon is too big
- I'll just pour it out

Wouldn't soup just leak all over the place if you put it on a square? A cube would be better.
- As a liquid, soup conforms to any dimensional space it's put in.
  (Suck on this knowledge, Google AI)
  
  Wow, that is a very correct and helpful answer!
  
  I have thus unlocked infinite soup storage by simply storing it in a one-dimensional point. Campbell's will pay me millions, assuming that we can figure out how to store a point with infinite mass.
  
  A square is 2d and thus has no sides. The soup will just flow wherever.
  
  So how do we push it through time?
- Yes, which is why they used the word in.
  
  How do you put something in a 2 dimensional space? A square has no height.
- Only if you pour too much, I had success with a single drop

Square bowl makes it easier to drink straight from the bowl without spilling.
- Heathen
  
  *efficient heathen
- No it doesn't. Stop spreading misinformation :(

Why is there not more triangular tupperware?
You get the ultimate free spout unlike the abject compromise that is the corner of square tupperware and you get far more options for tessellation when storing items in the fridge or freezer.
- Is that actually from The Office?
- Big Container only wants you to buy it triangular for pie
  Essentially no glass options
- Considering freezer storage tessellation as a deciding factor in your storage container shapes feels like putting theory way ahead of practice. But I still want them.
- Great word

Correct. Soup has a shape. It can't just morph into the shape whatever container it finds itself in. It's not a cat.
- Inb4 Google AI says cats are amorphous

I'm in love with the shape of soup
- Directed by Guillermo del Toro?
  
  Performed by Ed Sheeran

But my Buldak ramen brick fits perfectly into my square glass Tupperware.
Explain that, science.

Fuck the shapes system! Use zip-locs.
- Are you Canadian?

I freeze my soup in ice cube trays then pop em out and wrap in Saran wrap
- Oh shit, what was casting like for Silence of the Lambs??
  
  Like a liver with some fava beans and a nice Chianti

- Food grade forever chemicals! 😂
  
  Stasher silicone storage bags (which these appear to be, or at least their non-NA counterpart brand) are PFAS and PFC free.

No. Square container is better because the edges of the container perfectly fit as a lid, letting me easily drop a frozen serving of soup in.
- I have read this over and over again and I cannot figure out what it means but I really want to know now
  
  Okay, step by step.
  I have a small pot that I use pretty frequently for soup. For context, I eat homemade meals almost exclusively. I freeze them in tupperware, because I make huge pots of soup, I mean, just absolutely massive. Obviously, when a liquid is frozen, it expands. Thus, it forms a vacuum in the container. Run under hot water, it loosens a little, but it gets stuck in there sometimes.
  Now, the slightly annoying part. Sometimes, the container overflows. It's hard to fill a bunch equally, without waste, and account for the "new and improved" containers that get made every two weeks so they're all different sizes and volume. Again, water expands when frozen, so the fill line is unreliable. It gets the lid stuck, but, more importantly, leaves no gap between the lip of the container and the frozen broth. I usually press on the bottom of the containers to get rid of that vacuum, but the missing gap means I'm just pressing on a block of ice.
  Imagine my surprise when I realised my square containers just perfectly sat on top of the pot when turned upside down, like a lid. Now, overfilling doesn't matter. I can just press, and it drops out, without fail. I sometimes don't even need hot water. It filled my autism-riddled brain with joy to discover this!

Does this make sense bc my neurodivergent brain, or bc science?
- Gravity makes balls. If you had enough soup it'd conform to the shape of earth.
  Noah's ark myth actually originated from stories about a giant prehistoric crouton.

And if you put it in a thermos?
- Round ✅

op has never frozen soup in an icecream container. it saves room!!