I found an older guide on XP efficiency in Baldwin's brew here, but the numbers were inaccurate to their current values, so I've created an updated guide on which recipes for new items in Baldwin's brew produce the most experience over time at each level.
Also, I have a list of the quantities of all the items needed to get to level 25 at maximum efficiency.
Level 1: Peridot Roundhorn, 1 XP/min
Level 2: Coarse Alchemical Reduction, 1.25 XP/min
Levels 3-5: Sizzling Phosphorus, 1.625 XP/min
Level 6: Kelpie and Swamphaunt Kelpie, 1.8 XP/min
Level 7: Scales, 2.46 XP/min
Level 8-9: Skink and Spinner, 2.56 XP/min
Levels 10-17: Poison and Toxin, 2.778 XP/min
(Ties with Poisonous Rose Thorn apparel set, which unlocks at level 17)
Level 18: Peacock Spider and Speckled Peacock Spider, 3.875 XP/min
Level 19: Firefly/Quartz Cockatrice, 5.285 XP/min
Level 20: Pinstripe and Trail, 8.33 XP/min
Levels 21-25: Vial of Darkened Sight, 10 XP/min
Also, I have a list of the quantities of all the items needed to get to level 25 at maximum efficiency.
Breakdown by Level
Quote:
Level 1: Peridot Roundhorn, 1 XP/min
Level 2: Coarse Alchemical Reduction, 1.25 XP/min
Levels 3-5: Sizzling Phosphorus, 1.625 XP/min
Level 6: Kelpie and Swamphaunt Kelpie, 1.8 XP/min
Level 7: Scales, 2.46 XP/min
Level 8-9: Skink and Spinner, 2.56 XP/min
Levels 10-17: Poison and Toxin, 2.778 XP/min
(Ties with Poisonous Rose Thorn apparel set, which unlocks at level 17)
Level 18: Peacock Spider and Speckled Peacock Spider, 3.875 XP/min
Level 19: Firefly/Quartz Cockatrice, 5.285 XP/min
Level 20: Pinstripe and Trail, 8.33 XP/min
Levels 21-25: Vial of Darkened Sight, 10 XP/min
Levelling Quantity Guide
Note: These numbers DO factor in leftover XP from following previous steps in the list. If you're picking this up in the middle, you may get slightly different results, especially when starting out.
x2
2 Peridot Roundhorn
Level 1 to Level 2
200 XP in 3 hours, 20 minutes (No XP leftover after)
x8
8 Coarse Alchemical Reduction
Level 2 to Level 3
400 XP in 5 hrs, 20 minutes (No XP leftover after)
x53
53 Sizzling Phosphorus
Level 3 to Level 6
3445 XP in 35 hours, 20 minutes (45 XP leftover after)
x3
3 Kelpie or Swamphaunt Kelpie
Level 6 to Level 7
2700 XP in 25 hours (545 XP leftover after)
x2
2 Scales
Level 7 to Level 8
3500 XP in 23 hours, 40 minutes (1145 XP leftover after)
x4
4 Spinner/Skink
Level 8 to Level 10
7400 XP in 48 hours (245 XP leftover after)
x41
41 Poison/Toxin
Level 10 to Level 18
82000 XP in 20 days, 12 hours (1045 XP leftover after)
x11
11 Peacock Spider or Speckled Peacock Spider
Level 18 to Level 19
17050 XP in 3 days, 1 hour, 20 minutes (895 XP leftover after)
x10
10 Firefly Cockatrice or Quartz Cockatrice
Level 19 to Level 20
18500 XP in 2 days, 10 hours, 20 minutes (295 XP leftover after)
x5
5 Pinstripe/Trail
Level 20 to Level 21
25000 XP in 2 days, 2 hours (4195 XP leftover after)
x18
18 Vial of Darkened Sight
Level 21 to Level 25
Maxed-out XP in 9 days
Note: These numbers DO factor in leftover XP from following previous steps in the list. If you're picking this up in the middle, you may get slightly different results, especially when starting out.
Quote:
x2
2 Peridot Roundhorn
Level 1 to Level 2
200 XP in 3 hours, 20 minutes (No XP leftover after)
x8
8 Coarse Alchemical Reduction
Level 2 to Level 3
400 XP in 5 hrs, 20 minutes (No XP leftover after)
x53
53 Sizzling Phosphorus
Level 3 to Level 6
3445 XP in 35 hours, 20 minutes (45 XP leftover after)
x3
3 Kelpie or Swamphaunt Kelpie
Level 6 to Level 7
2700 XP in 25 hours (545 XP leftover after)
x2
2 Scales
Level 7 to Level 8
3500 XP in 23 hours, 40 minutes (1145 XP leftover after)
x4
4 Spinner/Skink
Level 8 to Level 10
7400 XP in 48 hours (245 XP leftover after)
x41
41 Poison/Toxin
Level 10 to Level 18
82000 XP in 20 days, 12 hours (1045 XP leftover after)
x11
11 Peacock Spider or Speckled Peacock Spider
Level 18 to Level 19
17050 XP in 3 days, 1 hour, 20 minutes (895 XP leftover after)
x10
10 Firefly Cockatrice or Quartz Cockatrice
Level 19 to Level 20
18500 XP in 2 days, 10 hours, 20 minutes (295 XP leftover after)
x5
5 Pinstripe/Trail
Level 20 to Level 21
25000 XP in 2 days, 2 hours (4195 XP leftover after)
x18
18 Vial of Darkened Sight
Level 21 to Level 25
Maxed-out XP in 9 days