What do the different monster parts do when making potions in Legend of Zelda Breath of the Wild? [duplicate]

Solution 1:

Although @Timmy Jim linked to a similar question in comments, my answer will deal exclusively with the effects of Monster Parts in elixirs.

To quote from the wiki (emphasis mine):

The type of Monster Part used affects the duration of the resulting elixir. In general, the more rare the Monster Part will be, the more duration is added. It does not affect potency.

A good chart outlining the duration added by each Monster Part, found through this answer (which has some more general information on Monster Parts in elixirs), can be seen here.

The potencies can be broadly summarized as follows:

• Level 3: the longest duration - includes guts, tails, and cores.
• Level 2: medium duration extension - includes fangs, elemental Keese wings, and coloured jelly
• Level 1: shortest duration - includes horns, tentacles, and basic, non-elemental Keese wings and Chuchu Jelly

The value of the dishes are determined by the value of the ingredients added (though note that Dragon Parts and Star Fragments will not add value). So adding a Level 3 Monster Part, due to them being more valuable than lower tiered parts, should increase the value of the elixir.

I think the only randomness should come from Critical Cooks,l which you can read more about here.