What happens next?

How to antique stainless steel
Wear the appropriate safety gear.
At minimum, you should wear safety goggles and heat-resistant, fire-resistant gloves.
Also note that you will need to handle the stainless steel object with another device, like tongs or a vice.
Everything you use should be both fire-resistant and heat-resistant to prevent accidental burns. Fill a container with warm, moist coffee grounds.