snopes.com - ❌ No, the lines on red Solo cups are not measurement marks for common alcohol serving sizes. According to Dart Container Corporation, the parent company of the Solo brand of
Mel & Rose Wine on X: "Did you know the lines on a solo cup are measurement marks? #drink #wine #beer #liquor https://t.co/gM9hcNg0ig" / X
Amazon.com: 144 Pcs Disposable Plastic Cups Party Plastic Cups 16 oz Party Cups Plastic Bathroom Cups Disposable Drinking Cups Can Be Applied as Tasting Cups, Party Tumblers, Shot Cups and More (Red) :
Red Solo Cup: How Solo's disposable drink vessel became an American party staple.
The Origin of the Red Party Cup. How did a plastic, red cup become… | by Daniel Ganninger | Knowledge Stew | Medium
What the Lines on a Solo Cup Mean
Did you know red Solo cups' lines are actually measurements?
922912-7 Solo Cup Disposable Cold Cup: Plastic, Uncoated/Unlined, 16 oz. Capacity, Patternless, Red, 1,000 PK | Imperial Supplies
Red Solo Cup / I Lift You Up / Let's Find the Volume! / Let's Find the Volume! – emergent math