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Cold Crashing Why It's Done To allow yeast and other matter to settle out To improve flavor To precipitate chill haze To help prevent oxidation When It's Done After fermentation has finished Usually also after diacetyl rest If you crash the beer too early, the yeast will become inactive (below 40°F) and won't reabsorb fermentation byproducts like ...


6

Cold crashing is a technique to get the yeast to flocculate (settle to the bottom of the fermenter). This is generally done to get clearer beer (or wine). It should be done when fermentation is complete, since there will be very little (if any) fermentation activity afterwards. This is because you are effectively removing most of the yeast from the beer. ...


5

Time and colder temps in the carbonated bottle are the main way to get it clearer without doing much else. You may need to identify the type of haze you are getting if that doesn't help. Haze comes from many different sources: yeast, protein, starches, hop oils etc etc. Irish moss and whirfloc are only going to touch the yeast.


4

It's true, you want to keep your carboys topped up. Oxygen is the enemy of wine, even moreso for white wines. Ideally you want to top up with more of your own wine, either from last year's vintage of the same wine or, better yet, from the extra you've been making all along just for topping up. But if you don't have any topping-up wine of your own, then ...


4

Irish moss is available at any homebrew supply outlet, often in small bottles with the instructions right on the label. Use 1 tsp. per 5 gallons of beer at the last 15-20 minutes of the boil. It will not affect the flavor of the beer with such a low dosage, assuming you're not harvesting it yourself. Its purpose is to latch onto proteins in the beer and ...


4

No. The reasons for fining or filtering are: 1) Appearance. Judges (and therefore many consumers) like to see a clear product. Generally, you will do better in a competition if your wine or beer looks like what the judges expect for that style, and most times what they expect is the mass-marketed crap you can buy at Safeway. 2) Flaws or bacterial ...


3

A 3 Gallon Carboy is $20 USD i think. I would much rather let my beer condition the proper length of time then be dissatisfied with the end product. After all about $20ish worth of materials probably went into the beer no? As to bottle conditioning vs secondary conditioning. While yes you can simply condition in the bottles you will be waiting longer and ...


2

No one has mentioned Isinglass when barreling ale. Whereas Irish Moss and whirlfoc will remove proteins, isinglass added during barrelling will clear the yeast. Yeast is negatively charged and isinglass, a long and twisted positively charged protein, can 'trap' many yeast cells at a time. It should be prepared and added according to the producer's ...


2

Clarification will not remove dissolved sugars. It's the same reason why in order to remove the proteins that cause chill haze, you have to chill the beer first to get the proteins to precipitate out of solution into solids. When the sugar dissolves, it interacts with the water on a molecular level, producing no overall charge. Yet, all finings work by ...


2

I imagine most of the cloudiness is possibly from flour or tannins. The flour usually falls out during the boil, but will fall out in the fermentor also. Tannins form tannin-protein complexes which cause a permanent haze. If the haze is caused by flour particles, then you can just leave the beer - flour particles are large and they will fall out in a few ...


2

Al Korzonas did some tests years back about using Irish moss. His findings were that you should use 1/4 tsp. in extract beers and 1 tsp. in all grain beers. The reason for using less in extract beers is due to the processing of the extract. For best results, rehydrate the Irish moss in a little water for an hour or so before using it.


1

If the beer sits for 4-5 days, any disturbed sediment will settle out again, and then some. In Winter, I cold crash in my garage, and then rack to the bottling bucket in the garage before moving back inside (be sure to cover the spigot with a sanitized plastic bag and keep everything sanitary). I put the bucket on top of a crate when I start cold crashing, ...


1

I would certainly move it down there and just do my bottling down there as well so as not to disturb the sediment again. I cold crash all my beer and I sometimes use gelatin (plain knox) once the beer is cold to further clarify it. The trub will be disturbed by carrying it down stairs, but if you have enough time, the cold (with or without the gelatin) will ...


1

If you're brewing all-grain, try recirculating the wort back over the top of the grain bed for at least a few minutes at the end of the mash. You can literally see the wort clarifying as the sediment is caught by the spent grains. For more information: http://www.homebrewtalk.com/wiki/index.php/Vorlauf



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