You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: INVENTIONS 
Clue: The typewriter was 1st mass-produced in the 1870s by this gun manufacturer
remington

Category: THE CRUCIBLE 
Clue: Crucibles are sometimes made out of this ceramic material made by firing pure clay
porcelain

Category: THAT'S SOUP-ER 
Clue: A nursery rhyme says that this soup made with peas can be enjoyed hot, cold or in the pot 9 days old

pease porridge