Go simple...I take soup all the time for lunch, and have never had one of the round ziploc with the screw-on lids leak. (http://www.ziploc.com/Products/Pages/TwistLocContainers.aspx?SizeName=Small) I don't microwave in them, but they are cheap, and - what drew me to them in the first place - both the lids and the containers stack! Plus, the lids for the small and medium sizes are the same.

nwu is right - they work great for soups and were about $2 at Target for a set of 4.

I use canning jars. or empty salsa jars.

This may be the place to get a real Thermos-type vacuum bottle.

They don't leak.

They always seem to come open when you want them to. [Some things develop a strong vacuum as the soup cools and are the devil to get open.]

They keep hot things hot and cold things cold. [How do they know???]

They, at least the better ones, are glass or stainless and, as such, easy to clean and don't retain odors.

Disadvantages: $$, Single Purpose, Glass ones will break, heavy, not for the dishwasher, ... I sure someone can think of more cons.

Wish I still had mine from 50 years ago - It had a picture of Gene Autry and Champion on it!

my mom got me a tuperware containter specifically for microwaving soup. It has a handle and a top that you can open to put in the microwave. It steams everything inside. Great for rice and pasta too!

I pack mine up the night before and throw it in the freezer. No risk of a spill and it doubles as an ice pack to keep the rest of my lunch cold!

Cook's Illustrated recently reviewed several containers and found that the clip-style ones with the gasket actually seal better after several trips through the dishwasher.

I usually use the Pyrex containers. They work great for me, but I'm a car commuter so they don't get jostled a lot.

Glasslock. They really seal tight, and they're glass so you can safely nuke them. The only negative I've found is that (a) they're a bit pricey, and (b) the tops aren't microwave-safe.

I use a wide-mouth pint canning jar (not one of the expensive ones shown above, just a ball brand jar). That way it is leak proof, very sturdy (I've never broken one), inexpensive, and I can microwave in glass as opposed to plastic. I've even started a trend at my work, now other people are doing it too!

It's funny, when I read the title of the post it occurred to me that canning jars would work, and lo and behold that was one of the suggestions. I love that you can get plastic screw-on caps so you don't always have to monkey with the ring and lid.

Another vote for the Ziploc screw-top containers! They are cheap, lightweight, freezer-safe, and, most importantly, leak-proof. I had high hopes for Glasslock, but even those leaked on my long, jostling commute. Plus, glass is really heavy. The only downside to the Ziploc screw-tops is that they shouldn't be microwaved, but washing one extra dish is a small sacrifice.

I just filmed a demo for those OXO top containers: http://www.youtube.com/watch?v=WYmTAuboi04. I think they're great! They look good and don't warp. I use them for soups and to keep ice cream in the freezer.

Paula
http://www.quitecurious.com

I just use the round containers that my sizzling rice soup comes in. No leaks.

I use lock & lock plastic boxes
http://www.lakeland.co.uk/F/keyword/lock lock/Price/0-to-4,99
they are very like the Klippit ones illustrated but have 4 clips rather than 2.

I take soup for lunch a lot - I make a big weekend soup and fill a few extra pots ready for the week ahead - and they have never leaked on me.

I really would prefer not plastic but if I had to carry the weight of a glass pot I'm not sure I could manage to walk to work. Swings and roundabouts.

I cheat and just freeze the soup, container and all. Problem solved.

I use the ball jars for lots of lunch items and leftovers. Have used them for shakes and never had a leak. I buy the Ball plastic lids(they come in wide mouth or the regular size) they wash up really well and seal great.

As a frequent soup eater, I second the Lock & Lock boxes. I toss these in my purse and don't worry about even a drop. They have never, ever leaked on me.

mason jars with the two-part metal lids (the flat part sits on top and the ring threads on the glass). works well for me and i walk several blocks and the ride the bus.

If you don't need to microwave in the container,a plastic peanut butter jar with a wrap of duct tape around the lid works great. I use these all the time in our cooler for camping and have never had a leak.

Cooks Illustrated just reviewed plastic food storage containers in the latest issue. As I recall they rated Snapware Mods and Lock & Lock Classics best. (Unfortuantely they don't display results on the website unless you sign up for a membership.)

For any sort of microwaving, I prefer glass. I'm quite happy with glass containers with a clip style lid with a gasket in the lid. Mine have lasted for several years and are still liquid-tight.

Mine are similar to the Glasslock/Snapware ones neilw linked to above. They are a bit pricey, but they last and I don't have to worry about heating things in plastic or plastic getting stained.

I second the Glasslock containers. They're fantastic and never leak because there is a rubber lining on the edge of the lid. I actually put soup in one last night and shook it furiously over the sink to see if it would leak and it didn't.

Get them cheap at Costco. A box of assorted sizes (I think 8 containers total) is about $27.

I am a huge fan of the Snapware Mods as mentioned above. They are lightweight, dishwasher safe, and truly water-tight. I bought a variety pack at Costco for very little and we use them on a daily basis. I also love how they stack well in the fridge and freezer.

I am not of fan of glass since I use them to transport foods to and from work. Plastic is lighter and I don't have to worry about glass breaking.

This post would be more useful if the author wrote about products she'd actually tried.

I have the klip it boxes & I can tell you first hand they are total garbage. Mine leak all the time, they have been demoted to pantry duty

I have excellent luck with mason jars with removable lids. Carry a little saucer with you to cover the top when you microwave and it's the perfect solution and costs nearly nothing when you buy a few at a time. Not to mention that they're stackable in the freezer, especially when lying on their sides, and available in a variety of sizes. And glass is easy to clean, doesn't turn red from tomato and the like, and can't leak into your food like plastics tend to do.

I feel old school. And hardcore, carrying glass around. But I've yet to have one break on me, knock on wood (cardboard, in fact). Good luck.

I love the idea of using mason jars! I've recently switched to using glass instead of plastic for most foods, so this is helpful. But I always put my lunch in a plastic bag inside the lunch bag, because no matter what, something always ends up leaking. :)

I use Mason jars a lot; the pint-size ones are a good serving and they're both less expensive (about fifty cents a piece) and probably less heavy than the square ones. If you're going to do this, definitely shell out $3 for a canning funnel, which will make getting the soup into the jars much easier!

My household is about to try the new Pyrex "no-leak lids" (http://www.pyrexware.com/index.asp?pageId=14&CatID=380&SubCatID=399); we'll see how they hold up!

We bought some Glasslock containers from Amazon 2 years ago & they are FAN. TASTIC.

No BPA (that was why we switched, intially) and the lids haven't leaked once, including one 3 hour trip accidently upside down in the trunk of my car!

This one fits sandwiches perfectly, and is also a great portion size for soup: http://www.amazon.com/gp/product/B00167Z3K8/ref=oss_product

This one is great for leftovers: http://www.amazon.com/gp/product/B0016KL0M0/ref=oss_product

2 years of daily use & still going strong!

One suggestion: I freeze the soup in a glass container with a plastic lid. The lid is not leak proof but since the food is frozen it is less likely to leak in transit. This works if you just need to transport your meal to the office or one location. If you are on the go all day it's of limited use.

We use plastic bento boxes for lunch and make food that doesn't need to be reheated but are still searching for a truly leak proof glass or metal containers for soup.

You really should never heat anything in plastic or put hot food in it. Plastic does leach; microwave safe ONLY means it wont ruin the container not that it won't hurt you.

DON'T buy the Rubbermaid with the red tops that claim to be leak proof. They're DEFINITELY not. I was sitting on a city bus, on my way to work, when the passenger across from me said, "I smell wonton soup!" IT WAS ME!!!

Has anyone tried a tiffin set for soup?

I'm very tempted by the original stainless steel ones, but they have plastic ones around too.

Its taken me along to figure this one out! I've tried all sorts of plastic containers and have not found one that works. I bought a stainless thermos--that's finally been the solution. The one I have isn't too heavy and has never leaked. You obviously can't microwave it, so I either I eat it at room temperature or I keep a bowl at work to microwave in.

Canning jars are a fantastic idea--so inexpensive and practical!! And I'm really making an attempt to reduce my use of plastic--blech!

My next task is to find something to transport salad dressing. I've tried small jars (like marinated artichoke heart jars) but they do leak a little. I'll have to try the small canning jars! Any other ideas??

I use the Ziploc twistloc containers. They work great!

canning jars are our go-to for everything, including soups. lid screw off and can "safely" be reheated if need be in the microwave. usually gets poured into a bowl.

our daughter get a thermos container for her soup as glass and reheating are not options.

I use the soup containers from my Chinese take-out place