Brewing

KeldagrimPort PhasmatysAldarin
Brewing
Released	11 July 2005 (Update)
Members	Yes
Location	Laughing Miner Pub
League region	Fremennik✓
Skills	Cooking
Tutorial	Blandebir
Music	None
Map

Brewing is a part of the Cooking skill that allows players to create alcoholic drinks, such as ales and cider, by fermenting ingredients. They all provide temporary skill boosts for varying skills as well as lowering some combination of Attack, Strength, and Defence. Every drink has a mature form which increases both the negative and positive boosts.

There are three fermenting vats. One is located in eastern Keldagrim, on the 1^st floor^[UK]2^nd floor^[US] of the Laughing Miner Pub. The other vats are located in Port Phasmatys underneath The Green Ghost pub and in the Moonrise Brewery and Winery on Aldarin island in Varlamore.

Brewing process

Ales

The main ingredients for ales are: 2 bucket of water, 2 barley malt, 1 ale yeast, and optionally: 1 the stuff.

To complete a full run, you'll need 6 buckets of water, 6 barley malt, 3 ale yeast, all ingredients and optionally: 1 the stuff.

You will also need 24 beer glasses or 6 calquat kegs.

Steps
1. Use 2 bucket of water on the fermenting vat
2. Use 2 barley malt on the fermenting vat
3. Optional: Use 1 the stuff on the fermenting vat, increasing the chance to mature the ale from ~4.7% to 64% (the stuff will be consumed)
4. Use the ingredients specific to the brew type you want to make
5. Use 1 ale yeast on the fermenting vat
6. Wait for 3 x 640 minute cycles (with the stuff added, between 3 x 640 and 16 x 640 minutes)
7. Use the valve to drain the completed ale into the barrel
8. Use 8 beer glasses or 2 calquat kegs on the barrel full of the completed ale

Cider

The main ingredients for cider are: 4 buckets of apple mush, 1 ale yeast.

To complete a full run, you'll need 12 buckets of apple mush and 3 ale yeast.

You will also need 24 beer glasses or 6 calquat kegs.

Steps
1. Use 4 buckets of apple mush on the fermenting vat
2. Use 1 ale yeast on the fermenting vat
3. Wait for 3 x 640 minute cycles
4. Use the valve to drain the completed ale into the barrel
5. Use 8 beer glasses or 2 calquat kegs on the barrel full of the completed cider

Ingredient notes

Barley malt can be made by using barley on a range.
Ale yeast can be purchased from either Blandebir or Lucrezia for 25 coins or Metarialus for 5 ectotokens. You must have an empty pot in your inventory for them to give you ale yeast.
The stuff can only be purchased from Honest Jimmy with 50 pieces of eight from playing the Trouble Brewing minigame.
Apple mush is made with an apple press, there is one next to each fermenting vat. Four cooking apples and a bucket are required.

Brewing mechanics

Fermentation time

Brewing relies on the same farming cycles as hardwood trees, redwood trees, and anima^[1] - despite this, the Kronos plant has no effect on fermenting.^[2] There are three stages that each brew must go through in order to complete, advancing to the next stage at the next growth tick.^[3] Brewing ticks only occur every 640 minutes. However, there is an offset for farming ticks that is different for each player and persists through logins.^[4] To determine this offset, note the time when a hardwood, redwood, or anima patch grows one stage, or when a brew completes and compare with the closest time on the table below. Apply the time difference to every time in the table. For example, if a brew completes at 10:18 AM on Day 1, subtract 22 minutes from each time listed.

Cycle length	Main crops	Base growth times(GMT)
640 minutes	Hardwood, Redwood, Anima, Brews	Day 1: 12:00 AM, 10:40 AM, 9:20 PM Day 2: 8:00 AM, 6:40 PM Day 3: 5:20 AM, 4:00 PM Day 4: 2:40 AM, 1:20 PM

In the table above, Wednesday 1 April 2026 is Day 1. (Note: This is usually today, but does not always update immediately when the date changes. Refresh the page to force it to update.) The next stage will occur in approximately 9 hours and 46 minutes (refresh). When (after refreshing) this timer indicates 10 hours and 40 minutes, this signifies a Farming tick just occurred (due to the farming tick varying between accounts, it is recommended to wait another 15 minutes).

The first stage begins immediately after adding ale yeast. The second stage will occur on the next growth tick where it is possible for the still fermenting brew to become mature. The final stage has three possible outcomes: a completed normal ale, a mature ale, or a bad ale. Bad ales are green and useless, and must be drained from the vat and then the barrel.

Standard times to complete when not using the stuff, is at minimum 1,281 minutes, about 21 hours and 20 minutes, or 1 minute past 3 growth ticks. At maximum it will be 1,920 minutes or 32 hours, which is the full 3 growth cycles. This depends on when you start the fermentation process during the current cycle. When using the stuff, the standard times to complete is at minimum 1,281 minutes, about 21 hours and 20 minutes, or 1 minute past 3 growth ticks. At maximum it is 10,240 minutes or 1 week.

Brewing outcomes

There are three possible outcomes when brewing a batch of ale: the mixture can either go bad, ferment into a regular batch of ale, or ferment into a batch of matured ale. The chances of a vat of ale maturing are dependent on whether players add in "the stuff" or not; the chances of ale maturing naturally is 5%, whilst adding "the stuff" increases this chance to 64%.^[5] The odds of the ale going bad will always be 12.5%, regardless of whether "the stuff" has been added or not. Lastly, the player's Cooking level should influence the outcome of the brewing process, but player testing shows otherwise.^[6]

Mature ales provide stronger effects and heal more, and using "the stuff" is highly recommended if attempting to brew mature ales. It must be added right after the barley malt is added, as it is not possible to put it in afterwards. In addition, "the stuff" cannot be added to a vat of cider, and so matured cider must always be brewed naturally.

When a batch of ale is complete, using "turn valve" will automatically transfer the finished ale to the barrel. The examine text will say "The vat is filled with [beer name]" when the brewing process is complete. If you attempt to turn the valve before the brewing is complete the contents of the vat will be emptied and lost.

Without "the stuff"

When no "stuff" is added to the mixture, players can expect the following rates:

Outcome		Chance
	Mature ale	6/128
	Regular ale	106/128
	Bad ale	16/128

With "the stuff"

When "the stuff" is added to the mixture, the odds are adjusted to the following:

Outcome		Chance
	Mature ale	82/128
	Regular ale	30/128
	Bad ale	16/128

Types of ale

All brews must be collected from the barrel with 8 beer glasses or 2 calquat kegs.

Ale		Kegged Ale				Boosts	Heals	Deboosts	Main ingredient		Grand Exchange price		Notes
Ale		Kegged Ale		Level	Experience	Boosts	Heals	Deboosts	Main ingredient		8× Glass	2× Keg	Notes
	Cider		Cider (keg)	14	182	+1	1	2–3 2 + floor(CurrentLevel * 0.02)		4 × Apple mush	880	21,670^{[i 1]}	Cider can be used to build a cider barrel.
	Mature cider		Cider(m) (keg)	14	182	+2	2	3–4 3 + floor(CurrentLevel * 0.02)		4 × Apple mush	1,395,208^{[i 1]}	181,998^{[i 1]}	Cider can be used to build a cider barrel.
	Dwarven stout		Dwarven stout (keg)	19	215	+1	1	2–5 2 + floor(CurrentLevel * 0.04)		4 × Hammerstone hops	560	26,902	The only Smithing boosts besides spicy stew and Kovac's Grog.
	Dwarven stout(m)		Dwarven stout(m) (keg)	19	215	+2	2	3–6 3 + floor(CurrentLevel * 0.04)		4 × Hammerstone hops	177,952	466,440^{[i 1]}
	Asgarnian ale		Asgarnian ale (keg)	24	248	+2	1	2–6 2 + floor(CurrentLevel * 0.05)		4 × Asgarnian hops	520	76,166^{[i 1]}	Asgarnian ale can be used to build an asgarnian ale (barrel).
	Asgarnian ale(m)		Asgarnian ale(m) (keg)	24	248	+3	2	3–7 3 + floor(CurrentLevel * 0.05)		4 × Asgarnian hops	188,640^{[i 1]}	11,332^{[i 1]}
	Greenman's ale		Greenmans ale (keg)	29	281	+1	1	2–5 2 + floor(CurrentLevel * 0.04)		4 × Harralander	1,736	49,588^{[i 1]}	Greenman's ale can be used to build a greenman's ale (barrel).
	Greenman's ale(m)		Greenmans ale(m) (keg)	29	281	+2	2	3–6 3 + floor(CurrentLevel * 0.04)		4 × Harralander	298,592^{[i 1]}	396,908^{[i 1]}	Greenman's ale(m) is required for a Falo the Bard master clue.
	Wizard's mind bomb		Mind bomb (keg)	34	314	+2–3 2 + floor(CurrentLevel * 0.02)	1	1–5 1 + floor(CurrentLevel * 0.05)		4 × Yanillian hops	544	73,262^{[i 1]}	N/A
	Mature wmb		Mind bomb(m) (keg)	34	314	+3–4 3 + floor(CurrentLevel * 0.02)	2	2–6 2 + floor(CurrentLevel * 0.05)		4 × Yanillian hops	255,072^{[i 1]}	64,216^{[i 1]}	N/A
	Dragon bitter		Dragon bitter (keg)	39	347	+2	1	2–6 2 + floor(CurrentLevel * 0.05)		4 × Krandorian hops	3,056	19,116^{[i 1]}	Dragon bitter can be used to build a dragon bitter (barrel).
	Dragon bitter(m)		Dragon bitter(m) (keg)	39	347	+3	2	2–6 2 + floor(CurrentLevel * 0.05)		4 × Krandorian hops	5,720^{[i 1]}	37,372^{[i 1]}
	Moonlight mead		Moonlight mead (keg)	44	380	N/A	4	N/A		4 × Mushroom	832^{[i 1]}	63,078	A keg of mature moonlight mead heals a total of 24 Hitpoints, one of the densest healing foods.
	Moonlight mead(m)		Moonlight mead(m) (keg)	44	380	N/A	6	N/A		4 × Mushroom	43,952^{[i 1]}	275,040^{[i 1]}
	Axeman's folly		Axeman's folly (keg)	49	413	+1	1	2–3 2 + floor(CurrentLevel * 0.02)		1 × Oak roots	1,568	29,382^{[i 1]}	N/A
	Axeman's folly(m)		Axeman's folly(m) (keg)	49	413	+2	2	3–4 3 + floor(CurrentLevel * 0.02)		1 × Oak roots	360,744	437,298^{[i 1]}	N/A
	Chef's delight		Chef's delight (keg)	54	446	+1–5 1 + floor(CurrentLevel * 0.05)	1	3–6 2 + floor(CurrentLevel * 0.05)		4 × Chocolate dust	1,696	25,014	Chef's delight can be used to build a Chef's delight (barrel).
	Chef's delight(m)		Chef's delight(m) (keg)	54	446	+2–6 2 + floor(CurrentLevel * 0.05)	2	4–7 3 + floor(CurrentLevel * 0.05)		4 × Chocolate dust	292,528	405,522^{[i 1]}
	Slayer's respite		Slayer's respite (keg)	59	479	+2	1	2–3 2 + floor(CurrentLevel * 0.02)		4 × Wildblood hops	824	30,482^{[i 1]}	Two of very few Slayer boosts.
	Slayer's respite(m)		Slayer's respite(m) (keg)	59	479	+4	2	3–4 3 + floor(CurrentLevel * 0.02)		4 × Wildblood hops	342,440	394,554^{[i 1]}	Two of very few Slayer boosts.

^ ^1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 ^1.12 ^1.13 ^1.14 ^1.15 ^1.16 ^1.17 ^1.18 ^1.19 ^1.20 ^1.21 ^1.22 ^1.23 These are infrequently traded, prices may be extremely inaccurate.

Changes

Date	Changes
25 September 2024 (Update)	Brewing location added to the Moonrise Brewery and Winery located on Aldarin.
24 July 2024 (Update)	The effects of "the stuff" are no longer removed upon entering the waiting area for the Trouble Brewing minigame while the vat is fermenting, or by logging in or out of the game while in the vicinity of the minigame area.
11 July 2005 (Update)	Added to the game along with the Farming skill.

References

^ Jagex. Mod Ash's Twitter account. 30 March 2018. Archived from the original on 14 August 2020. Mod Ash: "Yes, for any patch that used the farming timer - which I think is every patch except My Arm's one where he grows the goutweed during the quest since that becomes grown only when you kill the bird. It affects brewing too."
^ Jagex. Mod Ash's Twitter account. 21 September 2021. Archived from the original on 30 March 2025. Mod Ash: "While it's part of the farming growth cycle as you say, it is not affected by Kronos."
^ "Farming Timer Rework & Skilling QoL". Old School RuneScape News. The Old School Team. 15 February 2018. Archived from the original. A growth tick is similar to clocks that tick every 5, 10, 20, 40 minutes and so on. This is expanded upon in Farming Mechanics
^ Jagex. Mod Ash's Twitter account. 30 March 2019. Archived from the original on 28 May 2020. Mod Ash: "It persists through logins, and does not re-randomise."
^ Jagex. Mod Ash's Twitter account. 11 May 2018. Archived from the original on 27 May 2020. Mod Ash: "The code looks like it takes it from 5% to 64%."
^ Jagex. Mod Ash's Twitter account. 30 March 2020. Archived from the original on 27 May 2020. Mod Ash: ""is the 64% like the capped chance or does having higher cooking increase the chance above 64%?" Mod Ash:"That'd be what it goes up to. Boosts over 99 would not tend to work for this kind of skill.""

[inaccurate-7] 1.00 ^1.01 ^1.02 ^1.03 ^1.04 ^1.05 ^1.06 ^1.07 ^1.08 ^1.09 ^1.10 ^1.11 ^1.12 ^1.13 ^1.14 ^1.15 ^1.16 ^1.17 ^1.18 ^1.19 ^1.20 ^1.21 ^1.22 ^1.23 These are infrequently traded, prices may be extremely inaccurate.

[1] Jagex. Mod Ash's Twitter account. 30 March 2018. Archived from the original on 14 August 2020. Mod Ash: "Yes, for any patch that used the farming timer - which I think is every patch except My Arm's one where he grows the goutweed during the quest since that becomes grown only when you kill the bird. It affects brewing too."

[2] Jagex. Mod Ash's Twitter account. 21 September 2021. Archived from the original on 30 March 2025. Mod Ash: "While it's part of the farming growth cycle as you say, it is not affected by Kronos."

[3] "Farming Timer Rework & Skilling QoL". Old School RuneScape News. The Old School Team. 15 February 2018. Archived from the original. A growth tick is similar to clocks that tick every 5, 10, 20, 40 minutes and so on. This is expanded upon in Farming Mechanics

[4] Jagex. Mod Ash's Twitter account. 30 March 2019. Archived from the original on 28 May 2020. Mod Ash: "It persists through logins, and does not re-randomise."

[5] Jagex. Mod Ash's Twitter account. 11 May 2018. Archived from the original on 27 May 2020. Mod Ash: "The code looks like it takes it from 5% to 64%."

[6] Jagex. Mod Ash's Twitter account. 30 March 2020. Archived from the original on 27 May 2020. Mod Ash: ""is the 64% like the capped chance or does having higher cooking increase the chance above 64%?" Mod Ash:"That'd be what it goes up to. Boosts over 99 would not tend to work for this kind of skill.""

[1]

[2]

[3]

[4]

[5]

[6]

[i 1]