What does this quote mean said by Danforth in The Crucible?"We burn a hot fire here; it melts down all concealment."

This quote is said in Act Three to John Proctor, just as
he brings his claim that the girls, led by Abigail, are all making up the serious
charges of witchcraft that they bring against so many of the people of Salem. This quote
is incredibly important for a number of reasons. Firstly, it foreshadows the way that
the system of "justice" does indeed melt down "all concealment," in particular focusing
on John Proctor's infidelity with Abigail and his act of adultery against his
wife. Secondly, it is indeed true that the court does "burn a hot fire," as is shown by
the subsequent death of so many innocent lives. There is also the allusion to the fires
of hell in this quote, which is rather appropriate, given the hell-like nature of the
Salem witch trials and the way that so much harm was done with the intention of only
achieving good.