A mixture of water and crushed grains (usually malted) in which enzymes convert complex carbohydrates into simpler sugars that can be utilized by yeast during fermentation.

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Trying to calculate my efficiency correctly

So I've just completed my fifth BIAB brew, and this time I decided to try and calculate the mash efficiency of my setup since I'm fairly sure it's not as high as it should be. I also think at the ...
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3answers
76 views

Did I add too much chalk?

I'm doing an AG porter recipe. Historically, I have been dissatisfied with my porters - they come out thin, and a bit acidic. Some research suggested that my issue may be mash pH, so I bought so pH ...
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3answers
4k views

How can I raise my mash pH with something other than chalk or baking soda?

I recently moved to Rhode Island and my mash efficiency has suffered. The main part of my process that has changed is the water. The pH as measured by colorpHast strips (and two other off brands) ...
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2answers
252 views

Mash Efficiency With Top Off

I just put my second AG batch into the primary, but I ran into an issue I need some help with. When I did my first AG batch, I used water that was treated by a water softener (I know, I know...it was ...
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2answers
38 views

How to adjust recipes for high mash / sparge efficiency?

It seems most recipes out there assume 75 - 80% efficiency*. Seems sensible for homebrewer. but I consistently get 95%. I should feel lucky, but this means that I either: have too much alcohol for ...
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1answer
7 views

What is the lab wort pH of Rye Malt

I am planning a brew where Rye malt is a considerable component of the grist. I am trying to predict my mash pH by taking the weighted lab wort pH contributions of each of my malts, and accounting for ...
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1answer
28 views

I'm going to do my first IPA soon, how do I do my mashing?

I'm doing my first beer from scratch soon. I've been assisting a friend of mine with making beers before. I've also searched on the internet on the steps involved. One thing I've noticed is that ...
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5answers
6k views

Mashing at too High of a Temperature

I did my first all grain batch last night and went way over the desired 150s range on the temperature of my mash. It ended up being around 170f. What effects will there be from mashing at 170 (or ...
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1answer
77 views

A 15 gallon batch with two 10 gallon mash tuns

I need to split a 15 gallon batch of beer three ways. The brew is going to be an Imperial Stout, and the 5 gallon recipe calls for 20lbs of grain (60lbs for 15 gallons). Between the three brewers we ...
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1answer
101 views

Can wet crushing impede mashing?

Last weekend I tried it. I get considerably less broken hulls, practically whole. Kernel was broken all right. So far so good. I added 0.5 liter of cold water to six kg of malt by pouring it slowly ...
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0answers
27 views

Do you need to mash out? [duplicate]

I have just finished my second all grain brew. I failed to mash out and went straight from the mash to boil. What difference will this make to my beer?
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13answers
38k views

What can I do with my spent grain after mashing?

After brewing a batch of beer, I always end up with ~14 lbs of spent grain that I usually just toss in a pile in the corner of the yard. Are there better things to do with it (i.e. cooking, baking, ...
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1answer
49 views

Mash Boiler – What's a good boiler?

i'm new to the brewing game and am currently waiting for a few whole grain brews to come of age. One thing i'd like to do is purchase a larger mash boiler and dedicate a bit of space in the shed for ...
5
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1answer
57 views

How does cereal mashing not produce off flavors due to above 170F boil temperatures?

I have always read that over 170F grain mashes will get a very distinct off flavors. How is it that during a cereal mash of grains (where you typically hold a mid-range temperature for a duration and ...
6
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2answers
891 views

Safely adding enzymes (e.g. Beano) to lower final gravity

I've heard a lot of mixed stories about people adding additional enzymes (Beano, GasX, etc) to their beers to drop the final gravity down very (sometimes undesirably) low. I've also hear mixed ideas ...
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3answers
88 views

Anyone Know of Any Homebrewing Video Tutorial Blogs

Does anyone know of a good homebrewing blog that has video tutorials? I've Googled it and found a bunch of video tutorial blogs, but they're not great. Anyone know of some good ones?
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5answers
4k views

How soon after mashing do I need to start my boil?

I'd like to get 2 full boils from 1 mash. Can I keep the 2nd runnings overnight for boiling the following day? If so, what is the best way to store it. In general, how long can wort be kept after ...
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2answers
60 views

Vorlauf Fermentables?

Recently looking at the AHA Big Brew Day Recipes, I was looking at the Old School Barleywine (pdf). I get the hops schedule, but the fermentables has me confused. In the instructions, it says mash at ...
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2answers
90 views

ceteris paribus, does mashing at a higher temperature lead to a higher final gravity?

I'm doing 6 lagers according to the Brulosophy Quick Lager method, where the temperature is raised to 65*F/18.3*C for the remainder of fermentation after attenuation has hit 50%. 2 of them have been ...
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2answers
187 views

Any drawback in heating the mash with grains in?

I do BIAB and in my constant search for ways to simplify my brew day I recently started to heat my mash with the grains already in. That is: I fill my kettle with the full water volume I'll be using ...
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3answers
429 views

Need help accenting the “clove” character of my Hefes

So I enjoy the heck outa making Hefeweizens. Its a great style and very wonderful when fresh. However, my Hefe's never seem to hit that "clove" note properly, they always lean much more towards the ...
12
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3answers
7k views

All my all-grain batches produce a bitter/astringent, dark, almost burnt off flavor that ruins every batch, from light pilsner to dark belgians

I'm scratching my head trying to figure this one out. Here's the story: I started brewing extracts, and they all came out great. I wanted to get into all-grain so a last year I ordered myself the ...
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1answer
112 views

How much does hop flavor fade during fermentation?

In the end of my first batch, i thought i had put too many hop because it was 'oily' and the flavor was incredibly strong. But now in the second fermenting day the hops seems to be very distant, ...
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1answer
43 views

Hydrometer measures and possible corrections

In my first batch I was very worried about not being able to end it by not having certaing equipment at the right time. The thing is by following strictly the instructions my hydrometer reading was ...
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3answers
3k views

Is the iodine test for starch conversion pointless?

Looking around the web there seems to be a lot of mention of the use of the iodine (starch) test at the end of your mash. Is it actually useful (i.e. is it reliable)? There have been times when I ...
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1answer
50 views

Step Infusion question

In the most recent Zymurgy, there is a recipe that involves step infusion mash. It's not quite explained how to get the wort off the grain. So I was wondering how a step infusion mash works? I ...
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1answer
51 views

Do I need an anti-microbial additive in my plum brandy mash?

Basically I pitted and smashed 10 lbs. of very ripe plums; heated the pulp, skins and juice to like 120°F and added 3 gals. of distilled water and 5 lbs. of sugar. Waited for it to cool below 90°F ...
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3answers
2k views

When/How to Measure Pre-Boil Gravity to Determine Mash Efficiency

I routinely take my pre-boil gravity after sparging to determine mash efficiency so that I can throw in DME or Dextrose for a lower than expected yield or add water for a higher than expected yield, ...
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6answers
1k views

What is the proper way to maintain temperature in a water cooler Mash tun by adding hot water?

I bought the 10 gallon water cooler from Home Depot. The hole in it is about 3/4" diamater. After discovering that Home Depot, Lowes, Ace Hardware, and etc. did not sell all the components (hose ...
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4answers
3k views

What makes my mash tun smell like vomit?

If I leave my mash tun unattended for a few days after brewing it smells like a dead animal covered in vomit. What is the name of the bacteria/fungus/other that excretes this smell?
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1answer
379 views

How does the attenuation limit from mash temperature affect yeast attenuation?

Like, for example, if you select a yeast with an average attenuation of 80%, but you mash at 160, which limits attenuation to 76.8%1, would the limit simply be the lower of the limit or the average ...
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3answers
1k views

overheated the mash by a long shot

I asked before and got some help and have done some reading since. The temp in my mash jumped from 175 to about 195 after I put the lid back on. How much damage did I do? Some things I've read since ...
3
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1answer
214 views

Speed to collect wort from the mash tun for maximum efficiency

I want to optimize my efficiency, and I was wondering is the speed at which I collect my wort has an incidence on it. Right now I would say that I collect 1 liter of wort each 30-45 seconds. I get ...
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2answers
141 views

Lautering: Filter first runnings using a strainer

I am following the online course to all grain brewing on "craft beer and brewing" and in the lautering sectiong they explain to collect the first runnings and to put them back on top of the grain bed. ...
3
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1answer
71 views

Component of roasted malt that lowers pH

Roasted and kilned malts are often used to lower the pH of the mash. Which chemicals are created by the roasting process that have such a low pH?
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3answers
460 views

How do I correct acidity/tartness in a fermented beer?

I just moved to a new state, and brewed a dark beer recipe that I'm fond of-- a weizenbock. However, I believe my water chemistry may have been different enough from my previous location to have ...
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3answers
165 views

A Bit Of Grainy/Sweet Flavor In My Imperial IPA

I brewed a Dog Fish Head 90 min a month ago and it turned out pretty good for my first all grain. The only thing I noticed was a slight/mild grain flavor, especially when it gets warmer, and it takes ...
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1answer
61 views

What effect does conversion have on mash temp

We're mashing our second batch (after a year of extract) and seems like we cannot keep the mash temp low enough. We struck at 165F in an attempt to hit 152 for mash (grain was at 65F). We saw a ...
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4answers
3k views

Should the grain or strike water be added to the mash tun first?

I've always added my grain to my MLT cooler first, then dumped the strike water on top (I don't have a sparge arm). I calculate my strike temps based on the grain temp and initial cooler temp, so I ...
5
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3answers
812 views

Do I need to continuously measure the temperature of my mash tun?

From what I understand, the all-grain brewer warms up water to a particular temperature (usually 10-15*F over the strike temperature), adds this warm water to the grains in a mash tun, in an attempt ...
2
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1answer
688 views

Does temperature rise time between mash steps matter?

When doing a multi-step mash, does the amount of time you take in between steps to raise the temperature make a difference? (Aside from the obvious "taking longer will make your brew day take ...
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2answers
275 views

Gravity reading much lower than exected: why?

Okay, so my friend and me made an experiment yesterday. We wanted to brew a >20%, 300+ IBU IIPA. Yeah yeah... I know :) Now to the question. We used 10.5kg of grain for 26.25 liters of water for the ...
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2answers
173 views

How to Compensate for Higher than Expected Extraction Efficiency

What is the best way to handle a higher than expected extraction efficiency without compromising the flavor of the beer? If I'm brewing a blonde ale for example, aiming for a 72% extraction ...
1
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1answer
112 views

Conversion efficiency

What is the typical conversion efficiency during a normal single-rest mash (152 F/67 C, 3 l/kg)? I usually get around 80 %, but Braukaiser claims that it should be close to 100 %. I mash for 60 ...
1
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3answers
362 views

Foam and bubbles

my first mash. Combined all the ingredients in a "recipe" I followed. Added the yeast and it started working rather quickly. My airlock is due to come in the mail in 2 days. So I did the whole ...
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1answer
135 views

Steeping/Mashing Cara- Grains

I have a smaller (5 gallon) mash tun. I recently mashed 14 lbs and was only able to get a mash to water ratio of 1.2 and filled the tun!. Temp was right on, but I only got 55% efficiency. I have a ...
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2answers
741 views

Should I worry about mash PH when brewing with RO water?

I always use RO water to brew. I have never checked mash PH but have become concerned since my brews have come out darker than predicted by BrewSmith. I thought (I read in How to Brew by Palmer) ...
4
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2answers
3k views

What Calcium ppm is required in the mash for alpha-amylase stability and mash efficiency?

I recently moved and my water here is quite soft with a very low pH. As such, I've taken to adding many of my brewing salts in the brew kettle and only using salts in the mash to balance the pH. ...
2
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1answer
353 views

Steel Cut v. Flaked Oats

Pound for pound, do steel cut oats deliver the same level of mouthfeel as flaked oats? I ask because I recently made some steel cut oats for breakfast and they seem to be much more gummy than normal ...
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2answers
378 views

barley content in whisky from barley grains [closed]

Of the whiskey in a barrel, what % of it is barley? From what I understand, to make wort only 20% of spent grain is left. This leads to a figure of 80% of the grain dissolved in the wort. After ...