Would be possible to make the water copper cup compatible with other mod recipes?
Mods like Create.
So that is interchangeable with the water bucket? Like how the Milk Copper Cup is.
Maybe add the forge:water tag to it.

Looking into it

To add onto this, in the latest v1.2.3, the Farmer's Delight recipe to turn a bucket of milk into 4 bottles of milk does not work with the Copper Cup. This is a fairly important recipe, so I'd like to see more compat added here especially.