Old School RuneScape Wiki

Mature wmb detail.png

Wizard's mind bomb (m) (abbreviated in-game as Mature wmb) is a player-made ale which is created through brewing using the Cooking skill. When drunk this ale temporarily boosts a player's Magic level by +3 if their Magic level is less than 50, and by +4 if is 50 or greater. It is the stronger, or 'mature' version of the regular Wizard's mind bomb, which adds 2 or 3 levels to Magic.



The full recipe for the standard Wizard's mind bomb is as follows (in the order given):

  1. 2 buckets of water
  2. 2 barley malt
  3. (optional) 1 "The stuff," to increase chance of maturity
  4. 4 Yanillian hops
  5. 1 Ale yeast
  6. Wait 1-2 days
  7. Collect the completed ale using 8 beer glasses or 2 calquat kegs*

*Calquat kegs are highly recommended, especially if the ale has matured. Simply by collecting the ale in a keg, the value of the batch will increase by several thousand gp. This ale is considerably more useful in a keg, as it stacks 4 doses into one inventory slot.

During the brewing process, there is a random chance that the batch will turn out mature. Maturing happens during the brewing process, not afterwards. Leaving a ale in the vat after it completely set will not make it turn mature, or even go bad. The chance of brewing a mature ale can be increased by 50% by adding the stuff to the brewing vat, although it is also affected to a much lesser extent by the player's Cooking level. See the Brewing section of the Cooking guide.


This brew is generally more useful for non-combat spells, such as accessing advanced teleports or enchanting jewellery. The number of casts of a combat skill on just one drink is more limited than non-combat spells which may only need to be cast once. This ale can be used to meet requirements for some quests. It is fairly expensive, but is much cheaper (and quicker) than training 4 Magic levels, so it can be rather sought after at times by players who are just short of some spell they need to cast.