Brewing tea might seem simple: Just plop a tea bag into a mug ... too (like our favorite leakproof thermos and milk frother). Double the brews, double the fun, right? Precision tea preparation ...

Put a tea bag into the flask and fill it with boiling ... To clean the inside of a thermos from coffee stains or other stains, put one tablespoon of powdered soap for automatic dishwasher into ...