I'm still trying to figure this out. The info I'm putting here is a starting point for discussion - and I'd really appreciate comments from alchemists who are experienced with potions.
GENERAL
There are two issues here - what's brewable at HC, and the effect those potions have at HC (which may differ from the effects listed in the MC wiki).
BREWABLE AT HC
Disabled in HC: Invisibility, Invisibility Ext, splash versions of Harming and Harming II
Not currently working in HC,
but might be again soon: Strength potions, Weakness potions
Not brewable in MC (according to MC wiki): splash versions of Regen II, Swiftness II, Strength II and Poison II.
All other potions, as listed in the MC wiki, including splash versions and night vision,
should be brewable in HC.
EFFECT OF POTIONS AT HC
I'm pretty sure the effects of some potions in HC are modified. For example, I think the Healing potions heal instantly but for less hearts than listed in the MC wiki. (Will check this next time I'm ingame.) Comments anyone?
BEST SOURCE OF INFO ON POTION BREWING
Minecraft Wiki - Brewing (there's also a Potions page, but the Brewing page is more complete)
Minecraft Wiki - Splash Potions
Comments/feedback please.
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