The claim: The lines on red Solo cups room measurement marks

Red Solo cup are an ext than just an top party staple – they"re additionally measuring cups, follow to part social media users.

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Robert Hulseman invented the red Solo cup in the 1970s for households to usage at picnics. Since then, the cup have additionally become renowned for parties and also other society gatherings where alcohol is served. 

A July 22 article on Facebook mirrors a graphic of a red Solo cup v markings because that recommended servings of liquor, wine and also beer.

“How old were you when you uncovered out these lines room actually measurements?” reads text in the article from K92.3, a country radio terminal in Orlando.

The short article has because been deleted, but other users have actually shared comparable versions the the claim, such together one April 29 write-up with 2,000 shares that reads, "Did girlfriend Know: The present on a Solo Cup space Measurement Marks." 


This is no the very first time the case has surfaced on social media, make its way to Pinterest, Reddit and cocktail sites. It"s true the the lines roughly match encourage servings for alcoholic beverages, however it"s a coincidence. The company that manufactures Solo cups has actually said the present were not intended for measuring drinks.

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USA TODAY reached out come K92.3 and also the Facebook web page for comment. 

Lines weren’t supposed for measuring 

Newer versions of the red Solo cup have to be redesigned without ridges. However, previously versions of the cup did have actually lines that coincided with the recommended serving size for beer (12 ounces), alcohol (5 ounces) and also liquor (1.5 ounces).

But the design was not intentional, the company says.

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Margo Burrage, manager of communications for Dart Container Corp., parent agency of the Solo Cup Co., told PolitiFact the lines on the cup were developed for a selection of reasons. Measuring alcoholic beverages wasn"t among them. 

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"The rolling rim makes it simpler to sip your drink, but likewise prevents a ridge of SOLO cup from difficult together," Burrage called PolitiFact. "The indented base provides the cup sturdier and also less likely to crack. And also those extra lines save your fingers from slipping if holding the cup. For this reason while the present weren’t meant for measurement, they to be a fairly purposeful component of the design."

When the claim very first went famous in 2012, the Solo Cup Co. shared a graphic to facebook titled, “The REAL expertise of present on a SOLO Cup.” 

The company wrote the the measure lines insurance claim was “not true or an original part of SOLO Cup design, but surprisingly accurate.” 

USA TODAY got to out come Dart Container for added comment. 

Our rating: partially false

The case that the lines on a Solo cup space measurement marks is partly FALSE, based upon our research. If the lines on a Solo cup very closely match the standard serving size for various alcoholic drinks, it is a coincidence. The firm that create the cups has said the lines to be designed because that grip and strength, not measurement.