Why Do Milk Jugs Have Those Inverted Circles?
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Why Do Milk Jugs Have Those Inverted Circles?
The concave circles built into the sides of plastic milk jugs are an important part of their design.
![Why Do Milk Jugs Have Those Inverted Circles?](https://www.meijer.com/content/dam/meijer/product/0075/02/0093/14/0075020093141_0_A1C1_0600.png)
Philips Avent Natural Baby Bottle Medium Flow Nipple 3+ Months, Clear, 2pk
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Why Do Milk Jugs Have Those Inverted Circles?
![Why Do Milk Jugs Have Those Inverted Circles?](https://images.ctfassets.net/l031eph9pzsg/31t7j2wC5MEgXal6yNQczI/e4bcc6d2571a094695d1d7429d9f3e70/thumbnail.jpg?w=750&h=422&fl=progressive&q=50&fm=jpg)
Amazing Secrets Hidden In Everyday Things - Part 4
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What is this concave circle on the side of my milk jug? There's only one, there isn't an opposite shape on the other side.. : r/whatisthisthing
![Why Do Milk Jugs Have Those Inverted Circles?](https://i0.wp.com/glassbottlemarks.com/wp-content/uploads/2022/05/Chattanooga-Glass-Company-Coke-bottle-base-1958.jpg?resize=300%2C243&ssl=1)
Glass Manufacturers' Marks on Bottles ~ Page Two
![Why Do Milk Jugs Have Those Inverted Circles?](https://i.ebayimg.com/images/g/dmMAAOSwUbJgGIDl/s-l1600.jpg)
Vintage 1923 To 1925 -- 12 OZ -- Thatcher Manufacturing Glass Company-- EMB Milk
![Why Do Milk Jugs Have Those Inverted Circles?](https://preview.redd.it/68vlrosn8nb21.jpg?auto=webp&s=071648be0281f4be4323666fab849beb2bd1f866)
What is this concave circle on the side of my milk jug? There's only one, there isn't an opposite shape on the other side.. : r/whatisthisthing
![Why Do Milk Jugs Have Those Inverted Circles?](https://www.verywellfamily.com/thmb/KMliUxEp1ZQDlR39pPKH2Bb9csI=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/VWFAM_Illustration_How-to-Hand-Express-Breast-Milk_Mira-Norian_No-Text_Final-ab684388a4224e25817d28ab7e6709b8.jpg)
How to Hand Express Breast Milk: Step-by-Step Instructions
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Foods, Free Full-Text
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Tethered particle analysis of supercoiled circular DNA using peptide nucleic acid handles
![Why Do Milk Jugs Have Those Inverted Circles?](http://www.naturalresources-sf.com/cdn/shop/products/softshells-inverted-nipple-kit-medela.jpg?v=1658805398)
SoftShells Inverted Nipple Kit – Natural Resources: Pregnancy + Parenting
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MetLink - Royal Meteorological Society Turn Water Upside Down