Your Mochi gets hard because it looses moisture. Steam helps to soften it, by introducing moisture back into it again.
You can also try microwaving your Mochi to soften it if steaming is too much effort.
Baking is the last resort to soften your mochi. Baking your Mochi is good way to eat it instead of throwing it away.
Fresh Mochi needs to be stored in the freezer. If not, it will remain soft for only 24 hours.
The best way to keep Mochi soft for the long term is to store the fresh Mochi in a plastic bag and freeze it.
For more information on how to soften Mochi, check out our full article for more tips and detailed methods.