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What the hell is the difference between a porter and a stout?

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Irish Stout is 4 - 4.5 ABV.
It is not too strong.
I was thinking more to the original use of the word stout. I don't think the Irish Stouts we know where brewed before the term started to be use.
 
Need I say more?
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i have never had a porter that was lighter in body than a dry stout
i can drink a dry stout any time of the day as is custmary in ireland

I spent a week in Ireland in 2003. Over the course of the trip I drove 1100 miles on the wrong side of the road and never had a "near hit", plus I frequented at least 3 pubs a day. :ghostly::rock:
 
"stout butt beer is mentioned as a feature of London breweries of those times".

I saw this and snorted lager out my nose. Stout Butt Beer. Somebody needs to design a label for me. On another tack, next weekend I'm brewing Edwort's porter recipe from the recipe forum, and it has 1oz of roasted barley...can't wait to do this one.
 
Seems to me much like the difference between Pale Ale and India Pale Ale historically- there really isn't one. At least not in any absolute terms.
 
Stout was originally merely a descriptor (or classifier) of a specific category of Porter. Stout is akin to the descriptive word "robust". It is also akin to the descriptive term "wee heavy". A rather (to outright) robust (or heavy) Porter was described as (or classified as) a stout Porter. Stout is an adjective, not a noun.

All Stouts are Porters, but not all Porters are stout.

The roasted barley or no roasted barley thing is (well accepted) modern fantasy.
 
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Stouts are generally lower in alcohol and black patent is a stout ingredient that has no place in a porter. Guinness, for example is about 4.5% alcohol - though many people think it’s stronger. Porters are generally higher in alcohol. You will find porters that are 6.5%. You will not find a stout that is 6.5% except where people have this tendency today to throw all the rules out the window and add the word ‘imperial’ to the style. Yes there is some crossover. But they are far from the same thing.
 
In the 1700's Porters were apparently brewed with 100% brown malt (which must have retained some degree of diastatic power unless brown malt back then was actually caramel/crystal malt). The name as it relates to beer goes back to at least 1721.
 
I was thinking more to the original use of the word stout. I don't think the Irish Stouts we know where brewed before the term started to be use.

This is actually true. When we think of stout, we tend to think of Guinness, which the Guinness Draught we all know and love wasn't released until 1959.

I agree with most on here that the difference is Roasted Barley...sometimes. I have been to the Guinness Storehouse twice now and the following is the story they give.

Back in the 19th century, the water in Ireland was undrinkable. The dockworkers were unable to drink water throughout the day and some even died of dehydration. Arthur Guinness started brewing a dark session beer that could be drank throughout the day. He called this beer a porter because it was made for the dockworkers at port to drink all day while they worked and they would not get drunk.

This is the first beer brewed by Arthur Guinness, the Dublin Porter. He routed water coming off the Wicklow Mountains into the brewery and they use that water to this day.

As for the stout, they decided to make a drier, lighter, dark beer and have a strong roasted character.

The Dublin Porter is light-medium bodied and low ABV, just like the Guinness Draught, but is a lot sweeter and has no roasted character.

The Guinness Draught is light, very dry, and uses ~600 SRM roasted barley to brew the beer. It is VERY heavily roasted and very dry.

When you think Porter, think sweet and chocolate with a coffee flavor character (not a char, roasty character at all)

When you think of a Stout, think Dry, Dark Roast Coffee. It really is just a harsher, not sweet, version of a porter.

This is where the term "Stout Porter" came from back in the day. They wanted something stronger but close to the flavor. Hence, Stout was born.

I am by no means an authority, this is just what I learned from Guinness and my own opinions on the differences of the style. I hope this helps!
 
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So, what we have learned from this exercise is that there are many many stories about everything beer, everyone has the story they believe and it will never agree with the next guy that chimes in. This is one of the things that makes Beer history and lore so interesting, thought provoking and fun. On a homebrew basis, stout and porter are what you decide them to be. So brew your beer, call it what you want and drink it up knowing this is the best damn hobby in the world.
 
When Guinness took the manly adjective "stout" and used it to describe a bland and only mildly alcoholic (OK, wimpy) beer they totally abused the word.
 
The book "Brewing Porters and Stouts" explores a lot of these supposed histories and more. The author, Terry Foster, has his opinions but basically says there is no clear answer. He then goes on to present historical evidence, mostly focused in and around London about pubs that served different dark and strong beers. He discusses the names of the beers that were served, gravities, ingredients and brewing techniques when possible. Interesting read if you like the styles.

I personally prefer the stronger and/or sweeter stouts. Imperial Stouts are far and away my favorite style. In contrast, porters almost always seem to be lacking something to me. Maybe it's the roasted barley? They usually seem like an amber ale disguised as a stout and leave me a bit disappointed. Not a big fan of dry stouts either.
 
Did somebody just "like" a post I made twelve ******* years ago?

The real answer, the difference between the styles; no one knows, no one cares. The origin stories are almost certainly made-up nonsense.
 
The book "Brewing Porters and Stouts" explores a lot of these supposed histories and more. The author, Terry Foster, has his opinions but basically says there is no clear answer. He then goes on to present historical evidence, mostly focused in and around London about pubs that served different dark and strong beers. He discusses the names of the beers that were served, gravities, ingredients and brewing techniques when possible. Interesting read if you like the styles.

I personally prefer the stronger and/or sweeter stouts. Imperial Stouts are far and away my favorite style. In contrast, porters almost always seem to be lacking something to me. Maybe it's the roasted barley? They usually seem like an amber ale disguised as a stout and leave me a bit disappointed. Not a big fan of dry stouts either.

Maybe you feel something is missing in the porters because you are anticipating (consciously or sub-consciously) a strong stout when you are tasting it...
 
You're probably right. I usually feel the same about most small and dry stouts too.
 

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