An evaporating colloidal particle–laden droplet leaves behind a ring-like residue after drying. We routinely observe this ubiquitous phenomenon for dried coffee drops; thus, it is known as the "coffee ...

See a few examples of paper-based packaging from Starbucks, Amazon, and PepsiCo from ThePackHub’s Innovation Zone.

Money Shopping & Deals Primark Iced coffee and matcha fans 'obsessed' with 'stylish' £4 Primark cup Shoppers couldn't contain their excitement over the affordable little find Comments 0 Money ...

Cup of Coffee: Mullins throws immaculate inning, Ehrhard homers for Portland 7/2 Cup of Coffee: On a strange day full of rain and extra-inning affairs, only one Red Sox affiliate played a regular nine ...