YOU SAID:

my soup has become not warm but a cool temperature to the extent that i shall not eat it

INTO JAPANESE

スープは温かくならず、冷たくなり、食べない程度になりました

BACK INTO ENGLISH

The soup did not get warm, it became cold and no more to eat

INTO JAPANESE

スープは温かくならず、寒くなり、食べることができなくなりました

BACK INTO ENGLISH

The soup did not get warm, became cold and could not be eaten

INTO JAPANESE

スープは温かくならず、寒くなり、食べられませんでした

BACK INTO ENGLISH

The soup did not get warm, it was cold and could not be eaten

INTO JAPANESE

スープは温かくならず、寒くて食べられませんでした

BACK INTO ENGLISH

The soup was not warm and it was too cold to eat

INTO JAPANESE

スープは温かくなく、寒すぎて食べられませんでした

BACK INTO ENGLISH

The soup was not warm and it was too cold to eat