YES, and if you don’t have a nearby water source, we can send you a portable faucet so all you have to do is fill it up with sanitizing water and quickly rinse the used cup. This only takes 5 seconds (literally). We would send the faucet free of cost but it would need to be sent back to us with shipping on you or you could purchase from Amazon at a cheap price of $34.99. IMPORTANT: If you do use the same cup, just follow FDA standards and be sure nothing touches the lip or the inside of the cup (such as keg spout or liquor bottle).