Power Apples Mod 1.8, 1.7.10, 1.7.2 See image gallery for crafting recipes.  All apples last 8:00, and they also stack, instead of refreshing.  (This means that, if you eat two of the apples right away, you get the effect for 16 minutes instead of 8, unlike normal apples/potions , which would just refresh/refil the timer back to 8 minutes).