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Milk chugging

Milk chugging is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Milk chugging rather than just read about it. In short: Milk chugging, or the gallon challenge or milk challenge, is the "sport" of consuming a large amount of milk within a set period of time. Although procedures vary, the general requirements are that a person is given 60 minutes to drink one US gallon (3.8 L; 0.8 imp gal) of whole milk without vomiting.

Milk chugging — main illustration
Milk chugging — illustration

Key takeaways

  • Milk chugging belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Milk chugging to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Milk chugging from memory before moving on to harder problems.

Reference excerpt

Milk chugging, or the gallon challenge or milk challenge, is the "sport" of consuming a large amount of milk within a set period of time. Although procedures vary, the general requirements are that a person is given 60 minutes to drink one US gallon (3.8 L; 0.8 imp gal) of whole milk without vomiting. A gallon milk jug is a common size of milk container in the United States.

History The first recorded occurrences of competitive milk chugging date back to early 1997 with several explanations for the challenge’s origins. American baseball pitcher Bill Lee mentioned the challenge in his autobiography The Wrong Stuff as one of the activities that relief pitchers used to pass the time in the bullpen as far back as the late 1960s, and presumably has been independently discovered many times in the past. Undoubtedly, the most highly publicized competition was one that was featured in the fifth episode of the second season of the American television series Jackass, where Dave England and Ehren McGhehey were featured in a gallon challenge segment. Filmed in Portland, Oregon in 2000, contestants were to consume one gallon of milk in an hour in a variety of flavors, which resulted in each participant vomiting. Milk chugging has gained popularity and a following in some countries, especially the United States. The fact that it is often presented as being "impossible", as well as media coverage of the challenge, may have led to the appeal among high school and college students, as well as celebrities.

Medical explanation

The primary difficulty in completing the challenge lies in the limited capacity of the stomach. Generally, the stomach has an average capacity of only half a gallon (1.9 L). Stretch receptors in the organ sense when its limit is reached, triggering a vomit reflex. Moreover, drinking a gallon of milk is more difficult than drinking a gallon of water. The fat and protein in milk each inhibit the stomach from releasing its contents into the small intestine, forcing more of the liquid to remain in the stomach. In turn, the action of gastric acid and proteases in the stomach causes the casein in the milk to coagulate, turning the milk into a thick, semi-solid substance with a similar consistency to mozzarella, further reducing the amount of fluid that can be held in the stomach without being regurgitated.

Rules There are three universal rules in what has been called the "gallon challenge", although some minor variations may exist.

The contestant has one hour to drink one US gallon (3.8 L; 0.8 imp gal) of milk. Specifications on the type of milk vary, or are unspecified. Should the contestant finish the gallon within that hour, they must retain the gallon for a set period. There are several variations of this rule; either the milk must simply be drunk in an hour without vomiting, or the drinker must retain the contents for one additional hour or the remainder of the hour without vomiting. Should they retain the gallon, they win. If the contestant vomits prior to the set period, they lose. Although in almost all cases, the challenge is set for one gallon, in some cases a different amount is used, such as six US pints (2.84 L; 5.00 imp pt). Other variations of the challenge require that the contestant eats nothing during the hour of ingestion, and specify that the type of milk chosen must have at least a 2% fat content (not skimmed milk).

Legacy Many high school and college students hold their own challenges: Phi Delta Tau, at the Central College in Pella, Iowa have traditionally hosted an annual gallon challenge, four Rutgers fraternities host challenges for fundraisers, some MIT students celebrated the 2010 4th of July with a challenge, Sigma Phi Epsilon at Carnegie Mellon University hosts their Annual Gallon Challenge on campus, as well as many other official and unofficial gallon challenges. In 2008, several members of a fraternity at Arizona State University participating in a "milk-chug" were arrested for causing a car accident after vomiting into traffic below the bridge they were competing on. Peter Ubriaco founded the non-profit Gallon Challenge Foundation in 2004, formalizing a local gallon-challenge contest held since 2000. The organization raised donations during the yearly challenge for food and health-related organizations; after their 2006 challenge held in New York City, they donated to the Food Allergy Initiative, a non-profit organization that raises awareness and funds for the treatment and cure of food allergies. The act of milk-chugging has also been the centerpiece for a photographer and artists' show in 2005, where he featured an image entitled "Milk Chuggers" and a video called "The Milk Chugger", where he films himself drinking milk until he vomits. In 2009, Jimmy Fallon held a milk-chugging contest on NBC's Late Night with Jimmy Fallon, with guests Hélio Castroneves, Ryan Briscoe, and Dario Franchitti. On the broadcast, Fallon wore a rain poncho and drank chocolate milk, while the drivers drank regular milk. Also in 2009, and again in 2010, North Carolina members of the General Assembly, which included Bob Atwater, William Brisson, Andrew Brock, Dewey Hill, Joe Sam Queen, and Arthur Williams, competed in a milk-chugging contest, held at North Portico of the Legislative Building in Raleigh, to raise awareness in the dairy industry. Winners of the contest would receive money to donate to a charity of their choice.

See also Food challenge Gallon smashing Cinnamon challenge Competitive eating Saltine cracker challenge Salt and ice challenge

References

Illustrations

Milk chugging: A gallon jug of milk
A gallon jug of milk
Milk chugging: The human stomach capacity is around half a gallon (.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1.9 L)
The human stomach capacity is around half a gallon (.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}1.9 L)

Worked examples

Example 1 — a first encounter with Milk chugging

Start with the simplest possible case. Write down what Milk chugging claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Milk chugging before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Milk chugging ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Milk chugging

In research
Milk chugging appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Milk chugging in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Milk chugging is common in secondary-school and first-year university syllabi. It links to neighbouring topics Competitive eating, Internet challenges, Milk in culture, so understanding it makes those chapters shorter.
In everyday life
Look for Milk chugging outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Milk chugging in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Milk chugging means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Milk chugging out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Milk chugging in simple terms?

Milk chugging, or the gallon challenge or milk challenge, is the "sport" of consuming a large amount of milk within a set period of time. Although procedures vary, the general requirements are that a person is given 60 minutes to drink one US gallon (3.8 L; 0.8 imp gal) of whole milk without vomiti…

Why does Milk chugging matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Milk chugging?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Milk chugging.

Tags

  • Competitive eating
  • Internet challenges
  • Milk in culture
  • Party games

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