remelt

re- +‎ melt

remelt (third-person singular simple present remelts, present participle remelting, simple past and past participle remelted)

1. To melt again, especially after thawing.
   • 2016, Romain Jeantet, Thomas Croguennec, Pierre Schuck, Handbook of Food Science and Technology 3, page 360:

     The next stage is remelting: the affined sugar is dissolved in hot water and the syrup formed is made alkaline by adding milk of lime.

• melter