Ejaculated sperm that land on cold, dry objects may die after a few minutes — although very rarely they may last a whole 30 minutes. They may die even faster in a hot bath or a hot tub due to the heat or chemicals in the water.

Why do sperm die so quickly?

Outside of the body, sperm may die quickly when they're exposed to the air. The length of time they stay alive has a lot to do with environmental factors and how fast they dry up.

How long does it take for male sperm to die?

Outside the body, sperm can live for about 15 to 30 minutes in the right conditions. In a hot tub or bath, sperm can only live for a few seconds to a few minutes. If sperm is frozen under the right conditions, it could live indefinitely.