How literal is this phrase?

Sample examples at http://tinyurl.com/is-it-lit

melting pot:

Definitions:

  1. an environment in which many ideas and races are socially assimilated
  2. a vessel made of material that does not melt easily; used for high temperature chemical reactions

Examples:

  1. ranging from Irish Folk to music from Asia Minor ; Zuba - providing a global melting pot of World beat flavours , Afro beat influences and traditional folk-based lyrical tales ; Barrioviejo
  2. , Coptic and Eastern traditions to create a sublimely unified artistic vision of the cultural melting pot of Northumbria in the seventh and eighth centuries . The Lindisfarne Gospels , and others
  3. Heights Affair 's ' Dancin '' . Yet its heyday was down with the epochal melting pot of punk / funk / art / jazz / dub / disco , and Pat
  4. year . As a film , Chicken Little felt to me like it was a melting pot of every " alien invasion film " and " outer space cartoon " I have
  5. the area , each with their own pit-talk and methods . In a way the melting pot it had become had taught miners to adapt to change . The miners who came

Step 1: Select the definition of melting pot which occurs most of the times in the above examples. Ignore other definitions.

Definition1 Definition2

Note: Please select the answers below carefully based on the definition which occurs frequently in the examples

Step 3: score of 0-5 for how literal is the use of "pot" in the phrase "melting pot"
0 1 2 3 4 5

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