steam something open
steam something off

Have bowls or plates ready so the mussels can be served as soon as they have been steamed open.

Prison mail was steamed open, read, and resealed.

"Which of course you borrowed, steamed open, copied the contents of, and then replaced."

You can include them in various dishes, but first they must be steamed open.

The letter was steamed open.

There is growing uneasiness on Marlow's part when he happens to notice that his private correspondence with his fiancée has been steamed open.

We had no knife to open the tightly closed shells, but after he placed them next to the fire, they steamed open, exposing the inner meat.

"To show that it hasn't been steamed open or tampered with."

These clams are steamed open with various seasonings and served in their shells on the bed of pasta.

Its flap had been steamed open.