What is Doc Pyro's tape all about?

Hint 1 of 11:

In case you didn't know, the tape is clutched in her hand, in the exam room.

Hint 2 of 11:

There is also a tape player that will help you figure out what's on the tape.

Hint 3 of 11:

Look in the same room as the storage locker with your stuff.

Hint 4 of 11:

Now put the tape in the player and listen closely to what it says.

Hint 5 of 11:

You need to mix those ingredients *exactly* as she mentioned.

Hint 6 of 11:

Three of the items are all in the lab.  The fourth is available in the bar.
See "How can I buy a drink here?" in this section for more information.

Hint 7 of 11:

The order and amount of the ingredients are all random, so I can't help here.

Hint 8 of 11:

But I can tell you that you need to mix your ingredients in the black kettle.

Hint 9 of 11:

Now, you'll need somewhere to pour your explosives.

Hint 10 of 11:

Fortunately for you, they're available near by.

Hint 11 of 11:

Try the storage room next door.