Presto 8-Quart Stainless Steel Pressure Cooker and Canner - Manual (Page 9)

9
How do I know my pressure cooker is operating properly?
When a steady flow of steam escapes from the pressure regulator, you will know your cooker is functioning correctly.
When cooking first begins, is it normal for steam to escape and moisture to form on the cover and between the handles?
It is normal for steam to escape and a slight amount of moisture leakage to form on the cover and between the handles when cook-
ing first begins. If leakage continues, the cover handles may not be fully aligned with the body handles and, therefore, the cover
lock cannot engage.
Is it normal for the air vent/cover lock to rise up partially and drop back down when cooking first begins?
It is possible that the air vent/cover lock will move up and down slightly when cooking first begins. Do not be concerned. The air
vent/cover lock will remain in the up position once the cooker has sealed. However, if the air vent/cover lock continues to move
up and down or rises partially, tap it lightly with the tip of a knife. If it does not rise once you have tapped it, the following may
be occurring:
1. The burner is not hot enough.
2. The cooker is not fully closed (see page 4).
3. There is insufficient liquid to form steam.
4. The gasket for the air vent/cover lock needs to be replaced (see page 7).