The process of heating the wort to 100 deg. C or higher, causing the wort to boil. Hops are most often added during the wort boil.

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2answers
265 views

Strange black pods in wort - hop seeds?

We just brewed an all grain batch yesterday. There was an ounce each of two types of whole leaf hops (from Freshhops) in the boil. After cooling the wort, we strained it through a fine mesh strainer ...
5
votes
2answers
221 views

I boiled my PVC thermometer probe - health concerns?

I have a digital thermometer with a probe. The probe is stainless steel but the cable and probe housing are apparently made of PVC. In my last brew I just submerged the whole probe in the boiler ...
4
votes
1answer
883 views

Does batch size affect evaporation rate?

If I brew a 5 gallon batch and a 15 gallon batch on the same system, would I see a different hourly evaporation rate between the two batches? For the sake of the question assume all other variables ...
2
votes
3answers
3k views

Dealing with hot and cold breaks

I'm curious to hear how folks remove the hot and cold breaks in their brewing process? With the hot break, I try to spoon out as much as I can, but this often feels like fighting the wind. When it ...
2
votes
1answer
311 views

Leaf Hops in Primary

I used leaf hops in my boil and did not filter them out when I transferred to primary. I thought it'd be like pellet hops, which settle down into the yeast cake. This is not the case, though. They ...
2
votes
1answer
241 views

After how long of a boil will LPT1 and other head retention proteins denature?

I've read that certain proteins denatured during the wort boil is responsible for causing great, delicious foam. I don't get me no foam. I'm also doing partial boils using extract. So my question ...
11
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3answers
4k views

Do I need to sterilize my top-off water?

I just purchased my first kit and am about to brew it (tonight!). The instructions provided indicate that after cooling the wort and tranfering it to the sanitized carboy I need to top it off with ...
9
votes
1answer
879 views

Is it possible to boil wort too quickly?

I recently picked up this burner and was excited to use it to bring my wort to a boil. I had it cranked up pretty high and it took about 15 minutes to bring 6 gallons of wort to a rolling boil in a ...
7
votes
4answers
2k views

Performing a hop boil seperate from the wort boil.

I'm curious to try some single-hop style beers and would like to do several varieties in one brew day. My ideal situation would be to make a five gallon batch of an unhopped pale ale as the base and ...
7
votes
4answers
680 views

Short boil and DMS

So I just had a small brewing mishap where I added too much hops. WAY too much. I somehow mistook my 2oz hop pellet bag for a 1oz bag and added 1.5ounces of chinook instead of .75 . This brought my ...
6
votes
5answers
2k views

Target boil off percentage?

I have heard a lot of home brewers talk about the vigorousness of the boil being quite important. Given that describing the vigor in words like "rolling" is ambiguous I was wondering if it makes more ...
3
votes
1answer
417 views

Is DMS content relevant when using extract?

Most extract kits suggest simply dropping the extract in the bucket with some boiling water. Do extract brewers need to be concerned about DMS levels or is that taken care of in the starch conversion ...
4
votes
2answers
1k views

Brewing at Altitude

How does high altitude affect brewing chemistry? Up here in Denver (5280') or even higher in the mountains (some towns in Colorado are 9000' and higher), water does different things. In Denver, water ...
6
votes
5answers
2k views

Effect of boil size on IBUs

I have the following recipe on beercalculus: http://hopville.com/recipe/551364/belgian-pale-ale-recipes/wedding-belgian-ipa-2011-03-06-version beercalculus (along with most IBU calculators), ask for ...
4
votes
2answers
570 views

Propane v. Natural Gas

I just moved to a home where there is natural gas being piped into the garage for a garage heater. I was thinking of re-tooling my burners with jet/orifices that can handle the lower pressure of the ...
10
votes
1answer
1k views

Home brew, acetylaldehydes and hangovers

Both me and my gf noticed that my home brews (even just 1 or 2 a night) cause a fairly noticeable headache in the morning compared to commercial brews. God forbid you get drunk on it, the next ...
6
votes
3answers
386 views

Does anybody else skim the protein off the top of their boil?

I've been doing it lately, assuming it will reduce the amount of crap I have to filter out after the boil, and it seems to reduce the amount of head I get during the boil (less chance of a boil over). ...
4
votes
4answers
2k views

Filter out Hops after Boil

After the boil I have been told to run the wort through a filter before adding yeast and letting it ferment. It seems like you would get more flavor leaving the hop leftovers in. What is the ...
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3answers
2k views

What is the Maillard reaction, and why should I care what a duck thinks?

What is the Maillard Reaction? What does it do for my beer? What can I do to encourage or discourage it?
3
votes
3answers
949 views

Melanoidins in beer

Where do melanoidins come from in beer? What characteristics do they bring to beer?
12
votes
4answers
3k views

Is a long boil with extract necessary?

I'm making a late hopped extract beer later tonight. (Jamil's Evil Twin as posted http://www.mrmalty.com/late_hopping.htm) He suggests at 90 minute boil with the first hop addition coming 20 minutes ...
3
votes
4answers
202 views

Long boils are ruining enamel on stove, is there any way to prevent this?

I have tried putting aluminium foil about 3 inches out from around burner, but that seemed to exacerbate the problem. I think it helped the insulate the area under the foil. It seems like I am ...
4
votes
1answer
4k views

90-minute boil for pilsner malt?

On the "Belgian Blond Ale" episode of the Jamil Show (podcast) it was said that you should do a 90-minute boil because of the pilsner malt. Can someone explain this further?
7
votes
3answers
765 views

Pennies in the Boil

I've heard that adding cleaned pennies to the wort can help prevent boil-overs. I guess they could provide nucleation points- I dunno. Any truth to this, or is it just an old wives' tail?
7
votes
3answers
4k views

What does a 0 minute boil time mean?

I have a recipe that calls for an ounce of hops at 0 mins. boil time, any idea what you would do here? Typically, after a my 60 minute partial boil is complete, I take the pot off of the stove ...
3
votes
7answers
1k views

Is it possible to do full boils without a propane burner?

I currently brew all-grain using a 7.5 gallon pot on a propane burner outside at a house I currently rent. However, I'm planning to move within the year to an apartment in the city and likely won't ...
3
votes
2answers
1k views

What are some popular methods for measuring boil and HLT volume?

Particularly during lautering and during a boil, I have a hard time keeping track of water/wort volume. What method(s) and equipment do you all recommend for accurately calculating liquid volume ...
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7answers
4k views

Aluminium boil pots: Heresy or not?

Are aluminium pots acceptable as boil vessels? They're cheap, but I've heard they can produce off-flavors. Any experiences with them?
8
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2answers
1k views

Boiling with lid on or off?

In this answer it is mentioned that boiling with the lid on or off may make a difference in final gravity. Which do you recommend and why?
6
votes
2answers
362 views

How much does a full boil affect things?

I've seen a few threads here and there saying that one thing to do as soon as possible is start doing a full boil (5 gallons in the boil instead of ~3 in the boil with ~2 of water added later). For ...
9
votes
6answers
11k views

Tap Water: Safe to use without boiling? [duplicate]

I made my first batch of beer over the weekend. I didn't have quite enough bottled water on hand to add to my wort to make 5 gallons, so I used tap water. I sanitized the hose sprayer on my sink by ...
5
votes
3answers
285 views

Hop Utilization Resource

When substituting hops (both varieties and pellet/plug/whole)in a recipe, I would like to keep IBU as close to the recipe target as possible. However, the best utilization chart I can find is in ...
8
votes
1answer
3k views

When brewing a chocolate stout, should the cacao nibs be added in the boil, the secondary, or both?

When using cacao nibs to brew a chocolate stout, should they be added in the boil (if so, when?), in the secondary fermenter, or both? Is there a better ingredient to add to produce the chocolate ...
7
votes
2answers
415 views

Extract late with a full boil?

If you can do a full wort boil with extracts is it still beneficial to be adding extract late to avoid color changes and the like? What would happen to hop utilization with extract late in a full ...
8
votes
2answers
1k views

Effects of different boil intensities

What are the effects of having a super rapid crazy boil vs. a very slow, slightly rolling boil, and the different stages in between? If you're boiling 6 gallons on an electric stove or trying to do ...
1
vote
1answer
802 views

First All Grain Batch / LOW Efficiency

Yesterday I went down to my homebrew retailer, planning on buying a simple screen/valve assembly for a cooler. No go. He didn't have any of THOSE left, however he did have an assembly to use an ...
4
votes
1answer
281 views

Using hops after fermentation

Let's say you have already put your beer into your fermenter and you decide its taste is not hoppy enough. So you start out to add some more hops into it. One way to dry hop, but I will not expand ...
5
votes
5answers
3k views

How can you tell if a propane burner is large enough for boil?

Any idea on what BTU, PSI, etc. would be acceptable for 5 gallon boils? I've been looking around at turkey fryer's but I don't know if they'll pump out enough heat. Recommendations? PS: I'm trying to ...
8
votes
4answers
440 views

Small Space & Apartment Brewing: Boiling

Given the limited space of an apartment, what tips do you have for the boil? Do not consider budget to be a factor. This is the fourth question in a series of discussions about small-space brewing. ...
13
votes
2answers
1k views

Sanitation & Dry Hopping

Is there any risk of wort infection by not sanitizing hops before dry hopping?
4
votes
2answers
567 views

Propane tank usage in winter time

Today is 14F here in the northern suburbs of MA. In the winter time it can be tough to brew outside if you are a propane cooker brewer such as myself. When the tank is going full bore it tends to ...
19
votes
1answer
1k views

Partial vs. Full Voume Wort Boil

The starting postion for most new extract brewers is to use a partial boil set up. Defined as using a pot smaller than the intended batch size, all the ingredients are boiled in a smaller volume. ...
4
votes
2answers
344 views

Cocoa Nibs for Chocolate Flavorings

What is the best way to use cocoa nibs? Do you crush them, crack them leave them whole? Steep and remove pre-boil, leave in boil, add at flameout? Add them only during secondary? How long?
5
votes
1answer
387 views

First Wort Hopping (or FWH)

What is First Wort Hopping (FWH) and how best can it be replicated in extract brewing?
3
votes
13answers
2k views

Where do you brew?

This Saturday (1/2/09) will be my very first time brewing and I am considering my options as far as location. I have seen some folks boiling their wort outside on a gas grill and the smiling people ...
6
votes
3answers
4k views

Amount of Water to Boil for Wort

If I'm making a 5 gallon batch of beer, how much water should I use for my wort? Papazian's book says to use 1.5g and add it to 3.5g of room temperature water already in the carboy. I see how this ...