I am playing in Direwolf20 1.16 pack, and the injection press will perform the recipe regardless of the amount of liquid it has. Therefore I am able to perform this recipe with only 500ml of liquid and then produce 3 lvl1 enchanted books from it. Thus tripping my books each time.

Looks like I'm checking for the fluid being equal and not also checking the actual amounts are valid for the recipe.

All recipes for both enchant fluid and pure dye tested in the updated injection press.