It is a procedure in which a small scope (like a flexible telescope) is inserted into the bladder and ureter and it is used to diagnose and treat a variety of problems in the urinary tract. For ureteral stones, it allows the urologist to actually look into the ureter, find the stone and remove it.
The answer, though, is within reach: cold-brew coffee, a style that has enjoyed a recent resurgence for its natural sweetness, its lack of acidity and its simplicity. While a hot cup of coffee will have a stronger aroma and flavour, heat also brings out the bitter flavours of a bean.
Brew your hot, fresh coffee. Make it stronger than usual: you'll be diluting it with ice. The strength of the brew depends on how many ice cubes you plan to use. If you want sugar in your coffee, add it now as the granules tend to dissolve more easily in hot liquid.