Guest Post: Square Milk Jug Pouring Solution

April 10th, 2012 · 23 Comments

[I know that there are a lot of people that hate those big square milk jugs that they have at some Costco locations now.  They are hard to fit in the fridge, they are cumbersome, and worst of all, they tend to lead to puddles of milk all over the counter or table top.  No one likes that…think of all that wasted milk!  So, luckily, a fellow Costco addict and milk drinker, has come up with a solution to stop the spills.  The cap snaps right onto your square jug, is dishwasher safe, and will finally allow you to pour with out the puddles.

The Answer to Your Square Jug Milk Spills

It’s only a little milk.  Spilled or dripped or dribbled each time I pour.  Getting it into my coffee seemed particularly difficult and pouring into my children’s cereal bowls resulted in bad manners at the breakfast table.  The crusty milk slick on the refrigerator shelf fell out of view, so accustomed to it we had become it was no different than the white on the refrigerator.  Add to that we are addicted to Costco at my house.

Milk Cap from

It would seem easier to purchase milk at a different location.  We do shop other stores that also sell milk.  Sometimes their milk sells for $1.50 more than the milk at our nearest Costco.  But I have another problem:  I’m an entrepreneur.

Rather than save the headaches by spending more money on milk, I spent a whole lot more money to invent a user friendly cap for the square milk jug.  When you are addicted you will often do crazy things to get your fix.  You will visit all the Facebook pages dedicated to hating the Costco Milk Jug telling them about your “Simple and cost effective” invention.  You will submit articles to the local newspaper.  You will write unsolicited guest blog posts.  You will wear t-shirts to Costco that say “We Fix The Jug!” and put a jug on your head for a promotional stunt.

But when your wife says, “I need your invention….”, you know you are right.

There are many reasons the jug cannot and will not be fixed by anyone but users.  If a simple and cost effective solution interests you, please visit or for a cure.

Very truly,
Rob Fuglie
Entrepreneur and Addicted to Costco


Tags: Food · Guest Posts Share

23 Responses so far ↓

  1. 1 Curtis // 2016.11.12 at 3:30 pm

    Ok so someone explain to me how going from a cardboard container that can be recycled or put in the compost pile to plastic wrap that will be around forever probably end up in our streams and oceans with the other mounds of plastic is considered going green? On top of that no safety seal to prevent some crazy from opening it and putting God knows what inside. . Anyone remember the Tylenol poisoning?

  2. 2 Curt // 2016.11.12 at 3:27 pm

    Ok so someone explain to me how going from a cardboard container that can be recycled or put in the compost pile to plastic wrap that will be around forever probably end up in our streams and oceans with the other mounds of plastic is considered going green? On top of that no safety seal to prevent some crazy from opening it and putting God knows what inside. . Anyone remember the Tylenol poisoning?

  3. 3 Jason // 2016.08.19 at 10:20 am

    I have found that the simplest solution is to:
    1. Remove the screw on cap that comes on the container and set it aside for later use.
    2. Leave the plastic peel off seal in place.
    3. Draw an imaginary line across the top of the milk container from the container handle to the pour spout.
    4. With a sharp and pointed knife, cut an equilateral triangle shape through the in place plastic seal at the most distant end of the pour spout so that the triangle apex is closest to the pour handle and the base of the triangle is at the distant end of the pour spout. The triangle shape should be equally distributed across the imaginary line. Then gently remove only this triangle cut leaving the remainder of the plastic seal in place.
    5. Reinstall the plastic milk cap that was set aside earlier.
    NOTE: My experimentation with the size of the triangle has shown that a small triangle (about 1/2 inch on all three sides) pours more slowly while a triangle shape with the same 1/2 inch base but with one inch long side pours more quickly. So it seem that if you have persons who have a difficult time pouring milk without spills, use a smaller opening. One item to consider is that when the milk is pouring it will exhibit a pulsing type of pouring stream which can be remedied by pouring the milk slower or if desired cut the triangle sides longer and still equal on either side of the imaginary line between the handle and the pour spout.

  4. 4 A Hudson // 2013.05.06 at 6:58 am

    Even better for the environment would be re-useable glass milk bottles.

  5. 5 Bluehole // 2012.12.04 at 1:57 pm

    I wish I had discovered these milk caps before spending $25 on two lock-n-lock pitchers! The threads on the milk jugs vary, so the “rocking” method only works some of the time. The only test is to pour the milk from the jug into a pitcher. If it doesn’t run down the side as you pour, then you could have poured from the jug…but who wants to test every jug? The caps work great. Because the jugs threads vary, the caps don’t always align perfectly, but we can still use them without spilling a drop!

  6. 6 Gaiko // 2012.11.18 at 1:39 am

    Does anyone here even know that the square containers are magnitudes better for the environment?
    If we can’t even change our milk cartons to make a difference, I’m afraid the world is pretty much doomed ._.

    • 7 required // 2016.07.25 at 10:55 am

      They can fix the cap without any additional damage to the environment. The problem is not the material it’s made out of, it’s the shape of the thing and the poor standards that allow the hole to be mashed and misformed.

  7. 8 Mark Johnson // 2012.09.27 at 9:27 am

    Ok….here’s the real answer…We are all doing it wrong…..what!!, how can that be. The Costco jugs are not designed to be “lift and pour”, they are designed to be “rock and pour”…in other words, leave the jug sitting on the counter…hold the cup up to the opening and tilt the jug over, keeping the base on the counter…..the milk won’t spill. I didn’t believe it when I read it….so of course got home, opened a new jug, got the kids cup….rock…pour…no spill

    • 9 Rob Fuglie // 2012.09.27 at 12:16 pm

      Hi Mark, correct! The jugs are not designed to be lift and pour, but hold glass up or aim correctly and tilt the jug. I’m too much of an old dog apparently. For me it would be like buying a car with the gear selector reading D R N 1 2 3… or changing the keys around my QWERTY key board. Been pouring, and still pour, every other jug in my life the same way. Glad the tippy pour works for you!

  8. 10 Dianne // 2012.05.03 at 2:57 pm

    Sorry, found the link at the top : )

  9. 11 Dianne // 2012.05.03 at 2:56 pm

    Where do you get this square jug cap accessory? We don’t care about the shape of the container but the pout spout is worse than the bleach containers! Disliked it so much we are buying the triple pack of Organic Milk which is so darn expensive! Nice think is the triple pack has a really long shelf life.

  10. 12 Sue // 2012.05.02 at 8:04 am

    Just bought a square milk jug “cap”. Only $3.45 and included free shipping. Here’s hoping it works.

  11. 13 Jenna // 2012.04.23 at 3:17 pm

    My husband and I HATE the sqaure jugs. Thankfully, when we bought milk from Costco last week, they had switched back to the regular container! They must have gotten the message. The colors are still crazy though- why change the skim milk to a yellow label?

  12. 14 Rob Fuglie // 2012.04.17 at 7:42 am

    @Dennis~ have done some seal cutting as well and agree it can be a decent work around. Was looking for something more robust, but just as simple, for my family.

    @Janet~ 🙂 It’s kind of fun, isn’t it?

  13. 15 Janet // 2012.04.17 at 6:55 am

    My entire family thinks that these caps are a thing of beauty. They work perfectly. What a small price to pay to avoid complaints from my teenagers!

  14. 16 Dennis // 2012.04.13 at 7:11 pm

    I have an even cheaper solution. Don’t remove the entire seal! Just cut a slot in the middle part and the milk will come out without spilling. I figured this out when a got a couple of jugs that were not molded properly at the opening and I thought that Costco had “fixed” the problem. However I haven’t seen anymore of these jugs so I just fix them myself.

  15. 17 Janet // 2012.04.13 at 9:38 am

    I love the way the jugs fit in my fridge but my family hates the way the pour. I just ordered two. Thanks so much for solving this!

  16. 18 Rob Fuglie // 2012.04.12 at 9:26 pm

    Thank you for the support and feedback! The different experiences are based on what plant your milk comes from. Officially, Costco does not own the square jug. It was created by a company in Ohio, but Kirkland is most prominent. It is a tremendous industrial design…. just needs a consumer tweak. The whole purpose is to Love the Jug! If you already do, spectacular. Hopefully this gives some folks reason to try again. Take care, Rob Fuglie

  17. 19 Cathi // 2012.04.12 at 12:20 pm

    Hmm. the square Costco milk jugs fit fine in my fridge door, and I don’t have any dripping problems when I pour…. Sorry to those who do and I think it’s great that someone has made something to address that 🙂 Just sayin…..I love the square jugs!

  18. 20 Emily ( // 2012.04.11 at 4:37 pm

    Great solution, I just purchased two. Thanks!

  19. 21 Jeremy // 2012.04.11 at 11:28 am

    Last time I bought one of those milks I thought they had solved the problem in an interesting way. I was completely unable to take the cap off, it’s like it was melted on. If you can’t open it, then you can’t spill it.

  20. 22 deepak // 2012.04.11 at 9:33 am

    in Westbury NY costco is also selling square jugs but they have a small disk under cap with a small opening in it, which doesnot let milk spill while pouring.
    while Costco in Queens NY is still selling old shaped milk jugs.

  21. 23 Hil Yeskey // 2012.04.11 at 6:16 am

    A good idea, but I will continue to use my solution…… buy my milk at BJ’s. Costco is my favorite warehouse but the milk container proves to me that I am more addicted to them than they are to me. The milk container is a problem Costco could fix for their customer and they won’t. Bottom line for me…. I will take my business elsewhere.

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