A sealed lid could easily melt from the steam created by scalding-hot coffee. However, the drinking hole and the second, tiny hole both allow steam to escape to keep the lid from melting Why are there two holes in a coffee cup? What is the purpose of the second hole in the coffee cup lid? … Read more
Hand-wash the body with warm soapy water sttoke cups are NOT dishwasher safe! Running a STTOKE through the dishwasher can cause paint to chip and the vacuum seal to become ineffective. STORAGE: Always store cup with lid removed to allow parts to dry completely. How do you clean a Sttoke cover? Hand-wash the body with … Read more
The lid’s design was invented by Morris Philip of Bronx, New York and is covered by patent number 4,394,928 granted July 26, 2983. Architects and collectors Louise Harpman and Scott Specht donated 56 plastic cup lids to the National Museum of American History in 2012. When was the cup lid invented? The very earliest patent … Read more