Minecraft wiki entry for Before_1.9, associated text: 1 Obtaining
1.1 Witches
1.2 Fishing
1.3 Filling bottles
1.4 Brewing
2 Usage
2.1 Tiers
2.2 Base potions
2.3 Primary potions
2.3.1 Potions with positive effects
2.3.2 Potions with negative effects
2.4 Unbrewable potions
2.5 Unused potions
3 Custom effects
4 Data values
4.1 Item data
5 Achievements
6 External links