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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5answers
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 ...
9
votes
1answer
4k views

What is the purpose of boiling wort?

Theoretical question here. What happens when wort is boiled? Why do we do it? Why is the process not done at cooler temperatures? My limited understanding, with some assistance from this post and ...
2
votes
5answers
65 views

Hop boiling - Ok to use sub section of wort?

When doing the post mash hop boil during a brew, is it possible to do this with a 5L sub-sample of the wort, instead of the full 23L of wort? In practise it would mean taking 5L from the post mash ...
1
vote
2answers
263 views

Mashing bag problem

I tried for the first time using the BIAB method and ran into a big problem with the mashing bag. I placed all the ingredients (9lbs of different grains) in the mashing bag without thinking of the ...
4
votes
2answers
650 views

Propane tank usage in wintertime

Today is 14°F (-10°C) here in the northern suburbs of MA. In wintertime 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 ...
3
votes
3answers
79 views

How do I predict vaporisation during the boil?

I am trying to predict the litres/hour vaporised during the boil, so I can adjust the amount of sparging water accordingly. Is there an easy way of doing this a priori by utilising other known ...
8
votes
2answers
86 views

Why are hops added at different times during boiling?

I crafted an Oatmeal Stout (using a Brooklyn Brew Shop kit) last weekend and the recipe instructions were to add 2/3 of the Golding Hops pack at the beginning of the boiling and the remaining 1/3 15 ...
2
votes
2answers
99 views

What are good cooling times for immersion wort chiller?

As far as I know, DMS is only created above 60°C, so fast cooling after boil is important. My times for 26 liters boil, with homemade immersion chiller (8mm copper pipe) are: 7 minutes to 55°C (20 ...
3
votes
3answers
124 views

Do you need to boil un-hopped extract?

I'm doing an Epic Pale Ale clone with this partial grain kit. The kit includes two un-hopped liquid malt extract cans. Sterilisation aside, I want some clarification as to whether you should boil un-...
10
votes
5answers
3k 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 ...
3
votes
6answers
218 views

My cooled wort got contaminated by tap water. What are the primary consequences of re-boiling?

One of the hose clamps for the cooling spiral malfunctioned, so my cooled wort got contaminated by roughly 10 liters of tap water (in a 55 L batch). This is a lager beer which will be stored for five ...
7
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?
1
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2answers
221 views

How do I set up a Sestos D1S temperature controller with an NTC temperature sensor probe -40-120C

I have not succed to configurated my SESTOS digital PID with an temperature sensor probe working between -40°C to + 120°C. I put CtrL to 3 ( PID ) SN to 20 ( cu50 matching my sensor ) and Op1 to 2 ( ...
2
votes
2answers
52 views

Is DMS created every time you heat wort?

I've had a few experiences that lead me to suspect this. A few times I've stored a small portion of wort for priming with gyle, and each time I re-boiled the wort for a short period, 10 minutes or so, ...
2
votes
3answers
159 views

Keeping the grain … While boiling. Is that bad?

I was wondering something. When I brew beer, I mash my grain for an hour or so at 60-70oC. I then separate the wort from the grain. Then I add hop into the boiling wort for 90 minutes. My friend told ...
1
vote
1answer
73 views

Which kind of hop should be used on a First Wort Hopped (FWH) beer?

Should I use Aroma or Bittering hop on my FWH? The time between the FWH and the boiling should be taken into account or it does not matter?
2
votes
3answers
165 views

Boil options with a small pot

I'm about to make my first brew (from an extract kit), it's a 25litre batch (6.5us gal). Following John Palmer's advice I will be doing a partial boil. But the biggest pot I have available is 6litres (...
-2
votes
1answer
53 views

Need some carification on my ingredient choices and hop boil timing

Want to make a simple high gravity single hop ipa. Will this recipe work? 10 pounds DME Amber 1 pound Crystal 40l steeped 45 mins 1 oz Citra hops start 60 mins 1 oz Citra hops 45 mins 1 oz Citra ...
2
votes
1answer
114 views

How to increase gravity / decrease amount of water in my wort, and extract the same amount of sugars?

I have this problem: I'm regularly achieving 90% efficiency with my mash and sparge, and I like this effect. But I usually end up with about 30 ~ 35 liters when I aim for 20 ~ 22 liters. Boil to ...
2
votes
1answer
153 views

pre-boil water the day before?

I live in an area with hard water and I usually treat my water with a campden tablet. It's usually fine but I'd like to try something different. Can I boil my water the night before brew day and leave ...
2
votes
1answer
95 views

My propane burner is hard to ignite, and when it does, the flames are small

I have a Bayou Classic KAB4 propane burner, which I've had intermittent success using to bring my wort to a boil. When I hook it up to a full tank it seems to work fine, but when I use a tank that is ...
1
vote
3answers
237 views

How can i stop losing so much water during brew

I am brewing with a 25l HLT, 30l Mash tun and 52l boiler. I am boiling 20l to 25l water in the HLT and losing some water during the Mash and Sparge. By the end of the sparge I am getting about 15l ...
0
votes
1answer
139 views

Should My Boil Volume Include The Volume of Dry Malt Extract?

I was just experimenting with the 'Brew It!' tool on Brewers' Friend and the instructions say that for a 12 litre boil, I should add 8.8 litres to the kettle along with 5kg of dry malt extract which ...
4
votes
4answers
667 views

Which is worse: a weak boil or boiling with a lid partially on?

I finished Papazian's book The Complete Joy of Homebrewing last weekend and learned that a vigorous boil is necessary to isomerize the alpha and beta acids in hops which makes these bittering acids ...
0
votes
1answer
26 views

Can I still reach my desired IBU level if I split my boil?

In my recipe I have a boil size of 10L. Can this be split into 2 x 5L pots whereby half the ingredients would be used in each, but still reach the desired IBUs of a single 10L boil? Fingers crossed, ...
1
vote
4answers
519 views

What is the use of aromatic notes of bittering hop single-purpose?

My knowledge about hops and their contributions to bittering and aroma: The hops can be grouped by four purposes, being: Bittering, Aroma and Dual, the dual can be divided yet by "bittering/aroma" ...
11
votes
7answers
19k views

How do you strain pellet hops out of wort or beer?

After boiling pellets how can I deal with them? Is there a simple way to get them out of the wort, or can I leave them during fermentation? In that case will I be sure they will drop on the bottom and ...
1
vote
3answers
304 views

Electric brewing inside

It's starting to get cold out there but I still want to brew. I started looking into electric brew kettles (i am still new and only using extracts kits). Most of the stuff I read online is about ...
1
vote
1answer
53 views

Effect on a low gravity boil size on IBUs in the final batch

This question is a follow-up to the original one regarding the effect on boil size on IBUs. (Effect of boil size on IBUs) I understand that the boil gravity tends to lessen the utilisation of hops and ...
2
votes
2answers
111 views

On using a stainless steel tea bag to hold the hops while boiling

We are going to brew a Maibock next weekend and would like to substitute the whirlpool with a a metallic tea bag that holds the hops (pellets) while boiling. We tried a smaller metallic tea bag with ...
3
votes
1answer
251 views

Gunk in bottom of all grain boil

After finishing the boil and chilling the wort for my all grain batches I find I always have a large volume of gunk left of the bottom of the pot. I'm sure it's just spent hops and other solid bits ...
8
votes
3answers
6k 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 ...
1
vote
1answer
366 views

Would insulation on a kettle help a boil at all if the lid was off?

I bought an 1800 watt induction cooktop and 2 1000 watt bucket heaters that unfortunately were not able to boil 6.5 gallons of H2O in 90 minutes, although it appeared to get close and perhaps 0.5-1.0 ...
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 ...
0
votes
1answer
75 views

Is there any electrical work required for using a pre-assembled heating element?

Do I simply plug a pre-assembled heating element, like this one from the Electric Brewery, into a 120v outlet (given I have no 240v outlet) and then unplug it after the boil is complete? I am reading ...
1
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3answers
175 views

Camping stove as a wort heater

I'm looking for a way to get a good rolling boil on 5 gallons of wort, on a really tight budget What are my best options?
2
votes
2answers
537 views

Evaporation rate

Right now, when brewing, I have one step that is never the same : the boil. Actually, the boil phase is going alright, my problem is with the evaporation rate of my wort. I have a few questions... ...
1
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1answer
89 views

Testing bitterness during boil

Will be modifying a recipe and while I know the alpha % of the bittering hops and this being the first time I'm altering a recipe I'm wondering during the boiling process have I added enough bittering ...
1
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3answers
2k views

Specialty Grains, To boil or not to boil

I've been doing a lot of reading on brewing in preparation for my second batch. The first mention of using specialty grains that I found suggested boiling them in the brew water for a full hour. I ...
0
votes
1answer
41 views

Oil before hops

So I recently got a propane burner to brew outside (it's way too hot to be brewing inside), and I noticed something weird. As the wort came to a boil, it seemed like there was some oil floating on top....
2
votes
1answer
135 views

Relation Between Bitterness And Boil Strength

Last month I made an IPA with some experimental grapefruit hops with 18% AA but the final product turned out with very low bitterness and low hopppy flavor. The first thing in my head was that it ...
3
votes
1answer
60 views

Determining the amount of herbs to use

I am planning on brewing a herb beer; Rooibos Honey Ale. Question one is: How can I estimate (ball park) the amount of herbs to use prior to brewing the beer? Should I make a tea and then calculate ...
5
votes
4answers
6k views

What are the consequences of a “weak” boil?

I am new to homebrewing and am getting help from an experienced brewer. So far I think everything has gone OK. I am doing all-grain brewing on a stovetop. I have done 2 brews. I am doing the mash and ...
5
votes
1answer
977 views

Is there a need to stir the kettle at some regular interval while boiling the wort?

I extract brew. After I boil the three gallons of water, I take the kettle off the stove and pour the sugars in, and stir under I'm convinced it has all been dissolved. Placing the kettle back on the ...
4
votes
3answers
562 views

How long do you boil liquid to be used in a beer?

I believe this is perhaps only one question, but there are a few different situations, namely to make a water/DME mixture for a starter, how long? to prime with a sugar water mixture, how long? to ...
4
votes
2answers
159 views

Is it safe to boil my wort outside while it is snowing?

It's snowing where I live. Are there any risks involved with boiling my wort outside, when snow can enter the boiling pot?
1
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1answer
522 views

First Home Brew - Double IPA - Boil Question

I am in the middle of my brew for my first home brew, a Double IPA from Brewer's Best. I added the first package of Columbus hops at the start of the boil as instructed, and its as if they haven't ...
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2answers
6k views

What does “steeping hops” mean?

In an IPA recipe I came across, a final small addition of hops is supposed to be "steeped". What does this mean? Is it just a different way of saying "add at knockout"? The recipe is here ("The ...
1
vote
1answer
237 views

Why does stirring the wort lead to swirls and bubbling?

I'm a beginner brewer, but I've noticed that on every batch I've done so far, when the wort is boiling, and I stir the wort, it ends up behaving this way. Can anyone explain why this happens?
5
votes
2answers
1k views

What is the Purpose of Adding Malt Sugars Towards the End of the Boiling of the Wort, as Opposed to the Beginning?

I am in the middle of brewing a Phat Tyre Amber Ale from Northern Brewer. After boiling the water and steeping the grain, I took the pot off and added the liquid 6lbs Munich malt syrup and the dry 1lb ...