The following script will add a recipe that will output 250 mB of Lava by Melting a Diamond, consuming 500 RF.
// <recipetype:thermal:crucible>.addRecipe(String name, IFluidStack output, IIngredient ingredient, int energy);
<recipetype:thermal:crucible>.addRecipe("crucible_test", <fluid:minecraft:lava> *250, <item:minecraft:diamond>, 500);The following script will remove all Crucible recipes that output Lava.
// <recipetype:thermal:crucible>.removeRecipe(IFluidStack output);
<recipetype:thermal:crucible>.removeRecipe(<fluid:minecraft:lava>);