No, the steam comes out. The water won't boil if it is contained under pressure, and it must boil in order to keep the temperature down. Dirty water and a bad

No, the steam comes out. The water won't boil if it is contained under pressure, and it must boil in order to keep the temperature down. Dirty water and a bad choice of steel will lead to corrosion, so don't use those. Purify the water and/or use a different type of steel.