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By Kimberly Crandell | September 14th 2008 11:31 AM | 15 comments | Print | E-mail | Track Comments
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About Kimberly Crandell

I'm a mother of three, with an aeronautical engineering degree.  Although it's been a while since I've done any aircraft design, there are surprising applications of


... Full Bio

What happened to my jugs? They’re huge! I’m talking about my milk jugs, of course. No, seriously -- those large, plastic, gallon-sized jugs that you buy at the store that are filled with milk. It seems that they’ve gone through quite a growth spurt all of the sudden.

Milk Jugs - The New and the Old


Why the sudden design change? Transitioning to the new “squared off” jugs saves money, materials, time, and fuel… all things that are good for businesses, consumers, and the environment. The new-fangled jugs started showing up in selected Costco, WalMart, and Sam’s Club stores last fall. But because of the savings they represent, they are certain to start appearing in grocery stores all around the country before long.

So what exactly makes these new jugs so special? It becomes clear once you compare how we’ve “always done things” with the new process that utilizes this new design. The traditional milk jugs that we are all used to are transported using plastic milk crates. (If you’ve been in a college dorm, you’ve no doubt seen these – they make handy shelves and furniture for those individuals on a college budget. Sometimes they tend to “disappear” from the alleyways behind grocery stores in college towns -- not that I have any personal experience in this area. Ahem.)

Milk Crates - Dorm Decorating 101


The crates are necessary because the shape of old-fashioned milk jugs prohibits stacking them atop one another. The crates take up a lot of room, they are unwieldy to move, and extra space must be left in delivery trucks to take empty ones back from stores to the dairy.

They also can be filthy. “Birds roost on them,” said Dan Soehnlen, president of Superior Dairy. He spoke while standing in pools of the soapy run-off from milk crates that had just been washed. About 100,000 gallons of water a day are used at his dairy clean the crates. (1)

But with the new jugs, the milk crates are gone. Instead, a machine stacks the jugs, with cardboard sheets between layers. Then the entire pallet, four layers high, is shrink-wrapped and moved with a forklift.

Pallet of Milk ready for delivery


The company estimates this kind of shipping has cut labor by half and water use by 60 to 70 percent. More gallons fit on a truck and in Sam’s Club coolers, and no empty crates need to be picked up, reducing trips to each Sam’s Club store to two a week, from five — a big fuel savings. Also, Sam’s Club can now store 224 gallons of milk in its coolers, in the same space that used to hold 80.

The whole operation is so much more efficient that milk coming out of a cow in the morning winds up at a Sam’s Club store by that afternoon, compared with several hours later or the next morning by the old method. Not only that, but as a result of all of these savings, milk is cheaper as well – on average 10 to 20 cents a gallon. In an age where milk and gas are battling it out to see which can claim a higher price per gallon, I’m happy to see a price drop for either.

New Milk Jugs


The major drawback of the new jugs however, may not be realized until you get them back to your kitchen. While the production efficiencies gained by the new design are hard to dispute, the benefits are tainted a bit by the unwieldy nature of the jugs when it comes to using them for what they’re ultimately designed for – pouring milk.

The jugs have a large mouth that the milk is poured out of, and no real “spout” to help direct the flow. As a result, first-time users of the new jugs often end up with a sloppy mess on their countertop.

As with all things though, it just takes a little practice and patience. The name of the game is slow and easy. Because the jugs are larger and bulkier, it’s prudent to try tipping them to pour the milk -- especially when they are fairly full. Bring the glass up to the opening of the jug instead of the other way around, and you’ll go through fewer clean-ups in the kitchen.

So is the new design worth the mess? I think so. I can adapt to a milk jug that takes a little more finesse if it means there is material, fuel, and cost savings to be had. As long as I’ve got a “tall, cool one” to accompany my chocolate cake, I’ll embrace a change that gets it there in a more environmentally favorable fashion.

NOTES:

(1) Solution, or Mess? A Milk Jug for a Green Earth

Comments

Stellare's picture
Everything is big in America - including the milk jugs! ;-) Those jugs wouldn't make it halfway in my fridge...





Bente Lilja Bye is the author of Lilja - A bouquet of stories about the Earth

Kimberly Crandell's picture
Yeah... we do seem to supersize just about everything around here, including our fridges. Where else would we be able to store the ginormous vats of mayonnaise that we buy from Costco?

Looking at the picture of the new jug, it looks like you could design a reusable lit that had a pour spout or even a "tap".

Kimberly Crandell's picture
I agree. With all the engineering that went behind the overall redesign, I bet it wouldn't take much more to develop something to help with the "pouring problem". Then again, maybe all of the engineers that developed this are big stock holders in the paper towel industry. Hmmm...

Probably lid will come as an aftermarket thing that customers buy (kind of like those chip clips or handles for eating corn on the cob). Perhaps the engineers have a patent pending on the pour spout already.

We got some of these new milk cartons at our local Walmart recently, and the so called 'pouring problem' SHOULD be called the 'this will flood your countertop and waste a bunch of milk' problem. These don't just require more finesse. Until the level of the milk gots maybe a third down, they are nearly impossible to pour from without a bunch of spillage. They may be nicely 'green' but they are a LOUSY design for practical usage!

They are also enough taller than the old jugs that they don't fit upright under the lower shelves on the refrigerator either. I'd have to stamp these 'FAIL'.

Environmentally friendly? Not hardly! Recycling is FAR worse than reusing. The old style plastic crates are constantly reused - this increases by far the cardboard and plastic wrap used and in practice not all of it gets recycled. Plus the fact that delivery twice per week (in higher quantities) means that the milk is less fresh on average when you buy it. Sounds like FAIL to me.

Hank's picture
Environmentally friendly? Not hardly! Recycling is FAR worse than reusing.

I made that point recently also. Recycling seems to be another example of government waste - self perpetuated at that. Reusing would have to be cheaper and better.

Bring back bottle delivery! (but do it in a Volt)

rholley's picture
Vot's a Volt, Please?

Robert H. Olley
Physics Department
University of Reading
England

Hank's picture
A hybrid car you won't be embarrassed to drive.

Stellare's picture
Ah! We reuse big time here in Norway. All soda bottles and others all the time. Maybe Europe and Scandinavia is big on this? It is so integrated in our lives I don't even reflect on it. :-)

Bente Lilja Bye is the author of Lilja - A bouquet of stories about the Earth

rholley's picture
Nice one, Kimberley!

When I started work at the university, over 35 years ago, we had a group technician who showed me how to pour from a jerrycan without spilling. Pour with the spout at the top like in the picture. I don't know if it works with these milk cans, though.

pouring from a Jerrycan

Robert H. Olley
Physics Department
University of Reading
England

I agree with reusing bottles and delivering them in volts. for all those who complain of spillage, either use a funnel, put the white stuff in a new container, or prick a hole in the lid and cover it with anything while not in use.

So what does it save again? I am guessing if you weigh both jugs empty, the new one weighs more. And where do most of them end up? Those milk crates were re-used almost indefinitely. The packaging industry, manufacturers and the plastics industry have been busily finding new and creative ways to increase, not decrease, the amount of plastic in virtually every single product on the market. Not only are they increasing the amount of plastic in everything when they should be doing everything they can to decrease it, but they are creatively using multiple kinds of materials making products even less likely to be recyclable. This is capitalism at its finest, the profit motive is driving this. Since we don't pay for the environmental cost of putting more crap in products that end up in our landfills, the maximum profit is to put as much plastic as the consumer will swallow in any throwaway item. I find it extremely depressing to see this every day and I seem to be the only person that notices this trend which has been going on for a long time. You can see it in everything from toothbrushes with their creative new handles to pill bottles with ever more complex caps. My favorite is the zip-lock bag. I almost never use zip-lock bags because a simple open-ended food bag uses less than half the plastic of a zip-lock, is easier to close (just twist the end and fold it under, I don't use the ties), is cheaper, and always seals perfectly (zip-locks don't many times). It's not just plastics, it's packaging in general too. Look at the packaging of gum these days, I guess it was too simple and efficient the way it used to be packaged.
ashley's picture
I'm not sure about the milk jug redesign, but the arrowhead bottles that use 30% less plastic are pretty cool. Same basic structure and same function, so it skips the hassle of the so called "pouring problem" these new jugs seem to be spewing. Good article though, notifies a vast audience of their inevitable change in the grocery store. =]

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