ANSWERS: 1
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When you refer to a Lager beer you are talking about the kind of yeast that is used to ferment the beer. There are basically two types of yeasts used to make beer Ale yeast and Lager yeast (of coarse there are exceptions like wild yeast used in many Belgian ales, etc). Ale yeast is a top fermenting beer yeast which typically has lots of activity at the top of the fermenter and needs a temperature range of around 60 to 75 degrees F to ferment. Generally speaking, Ale yeasts also produce a slightly more heavy beer with more body. Lager yeasts are a bottom fermenting type of yeast that need cooler temperatures (typically around 40 to 55 degrees F) to ferment. Lager yeast produces a cleaner lighter beer. Another difference is time. When using an Ale yeast you can have a beer that is ready to consume in as little as 30 days as opposed to Lager yeast strains which typically need to sit around and age for at least a month or so longer than an ale style of brew. When you refer to a stout beer, this is just another ale type of beer so to answer the question, lagers will always take longer than a stout to ferment.
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