Which of the following is true about autoclaving or steam under pressure?

All kinds of microorganism and their spores are destroyed by autoclave machineThe autoclaved instruments can be used for 1 month considering the bags are still intact The instruments are put into unlocked position, on their hinge, during the autoclaveAutoclaving different kinds of metals at one time is advisable

Explanation.

Metals with locks, like clamps and scissors should be unlocked in order to minimize stiffening caused by autoclaving the hinges. Not all microorganisms are destroyed by autoclaving, there are still microorganisms that are invulnerable to extreme heat. Autoclaved instruments are to be used within two (2) weeks. Only the same type of metals should be autoclaved as this will alteration in plating of these metals.