Discoloration and Pitting
Discoloration of aluminum inside from hard water minerals is harmless. It can be removed by boiling a
solution of one tablespoon vinegar or two level tablespoons cream of tartar in a quart of water, or by
scrubbing with aluminum cleaner or soap impregnated steel wool cleaning pad.
Pitting is caused by the interaction of aluminum with other metals in the presence of moisture. This can be
prevented by washing, rinsing and drying the unit thoroughly after every use. Remember: do not put in
dishwasher. Always store the pressure cooker in a dry area when not in use. While pitting is not injurious to
health, if pitting becomes present and you detect it in the metal, then we recommend that the unit be returned
to the factory for examination. Do not use the unit if pitting is present until it is determined the extent of
damage caused by pitting.
Storage
The cover should be stored separately from the bottom or upside down on the bottom to allow air circulation.
Always be sure the cover and bottom are thoroughly dried to protect against pitting and corrosion. Protect
the metal-to-metal seal from being struck or dented.
Overpressure Plug
The overpressure plug releases if the vent pipe becomes blocked and the cooker/canner develops too much
pressure. This is a protection that permits excess pressure to be released safely. If you follow directions for
using the unit properly, the plug will probably never release.
A small amount of steam or moisture may be visible around the overpressure plug as the pressure is starting
to build inside the unit. It is normal for the overpressure plug to leak steam until approximately 5 pounds is
shown on the pressure gauge. If leakage continues beyond that point, the cause may be:
1) The overpressure plug needs replacing if it is worn, cracked or hard. We recommend that you replace the
overpressure plug every 12 months, or before if it becomes hard or deformed. Never reuse a blown
overpressure plug.
2) Built-up food or grease may be in the opening. We recommend that the opening in the cover where the
overpressure plug fits be cleaned with hot soapy water and a small brush at least once every month
during periods of use to maintain a clean opening. This cleaning/inspection is in addition to normal
cleaning performed after using the unit.
TO REMOVE THE OVERPRESSURE PLUG: From the underside of the cover, pull the plug out of its opening
using your fingers. After cleaning, reinsert the overpressure plug by pushing the round top side of the
overpressure plug into the opening from the underside of the cover. When the overpressure plug is correctly
in position, the indented portion will be visible when the underside is viewed. Check that the round top of
plug and top lip are fully through the opening so that the top lip is not folded under. (There is a video that
shows how to do this at www.aa-cd.co)
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