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Belgian Dark Strong Ale Westvleteren 12 Clone - Multiple Award Winner

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Brewed this on Saturday missed my starting gravity ended up with 1.088 or 1.089? Not too bad didnt boil of 1/4 gallon for whatever reason.

Pitched yeast at 5:00pm at 64 degrees it actually had krousen 5 hours after pitch. Today its at 68 will raise to 80 by the end of the week.

Worried that its fermenting to fast and wont have much character

Everything sounds good.

Controlling the temp rise on a healthy pitch will keep the approach to FG on target and keep fusels to a minimum. Most of the esters produced in the Westy 12 are done so after high krausen. A slow rise to 80F, (ramping if possible), will help to round out the profile. Higher temps speed up the nutrient uptake and metabolism in yeast but it also speeds the life-death cycle of the yeast. This increases the risk of fusels, a palate-dominant juicy-fruit profile, and to a smaller extent autolysis. We try to avoid the juicy-fruit-dominant profile by controlling the temp. A great W12 clone will have a slight spice, a tiny hint of yeast funk, toasted bread, fresh 'and' dried stone fruits, (plum-prune), with a mild finish of toffee-anise from the candi syrup at the end. After aging the Westy 12 clone should be balanced and drinkable.

The monks at St. Sixtus control the temp rise on the Westvleteren 12 using cold water and a hose on the fermenter!
 
Thanks got dual stage chamber able to rise it up each day from 65 to 80 i will check it on day 6 if it is close to 1.013 I will start to cool it back down to 68
 
I searched through the other thread and saw some folks doing PM versions of the recipe. Does anyone have advice or things to watch out for with a PM version? Here's what I came up with for the grist:
5 lb Pilsner
2 lb Pale Malt
3 lb Candi sugar (D-180)
2 lb Pilsen DME
3 lb Extra Light DME
 
I'm sure I just missed it somewhere but what is the OG supposed to be? For a 5g batch I'm showing 1.101 in beer smith with the 15lbs of grain and 3lbs of syrup. Or 5.5g batch with a 1.091 OG
 
I'm sure I just missed it somewhere but what is the OG supposed to be? For a 5g batch I'm showing 1.101 in beer smith with the 15lbs of grain and 3lbs of syrup.

OG should be 1.090 but we've had it turn out well from 1.088 - 1.092.

For ProMash or BeerSmith you can adjust the variable mash efficiency to meet your equipment's known mash efficiency. Adjust the grist to target at 1.090.
 
I'm sure I just missed it somewhere but what is the OG supposed to be? For a 5g batch I'm showing 1.101 in beer smith with the 15lbs of grain and 3lbs of syrup.


The og should be 1.090 to 1.091. Try an online recipe builder to check it. What is your efficiency
 
OG should be 1.090 but we've had it turn out well from 1.088 - 1.092.

For ProMash or BeerSmith you can adjust the variable mash efficiency to meet your equipment's known mash efficiency. Adjust the grist to target at 1.090.


Do you just scale the grain to match the efficiency and keep the 3 pounds of syrup. Or do you need to adjust the syrup and the grain to match grist percentages at various efficiency
 
Syrup stays the same, it's going in the boil (or fermenter at high krausen) not the mash.
 
I wonder how fermenter syrup additions will work for this recipe. Seeing how some struggle to get FG low enough, fermenter addition when most of maltoze uptake by the yeast is complete would make perfect sense. I done it on tripels with great results
 
I wonder how fermenter syrup additions will work for this recipe. Seeing how some struggle to get FG low enough, fermenter addition when most of maltoze uptake by the yeast is complete would make perfect sense. I done it on tripels with great results

I brewed a similar recipe but used a lot of CSIs info in the process. I added the D-180 about 48 hours in and finished out at 1.008 within a week and a half. I had a monster (~2.5L) starter and fermented at ~149* but I still think thats a pretty good sign. I'll continue to add any syrups at high krausen on future high gravity brews.
 
Brewed this on Saturday missed my starting gravity ended up with 1.088 or 1.089? Not too bad didnt boil of 1/4 gallon for whatever reason.

Pitched yeast at 5:00pm at 64 degrees it actually had krousen 5 hours after pitch. Today its at 68 will raise to 80 by the end of the week.

Worried that its fermenting to fast and wont have much character


Just checked it around 1.030 and temp is close 77 degrees, still got a ways to go. Lost a little due to blow off but not much used fermcap
 
CSI, what is the purpose of boiling the syrup?

Here is a link to the document describing miscibility and boiling late addition adjuncts and priming syrups in more detail:

http://www.candisyrup.com/uploads/6/0/3/5/6035776/use_and_storage_of_candi_syrups_rev_1.41.pdf

Below is a doc excerpt:

"CSI’s Candi Syrup is filled and packaged under sterile conditions. If adding candi syrups to primary or secondary the following steps are recommended:

1. Sanitize the exterior of the packaging.
2. Mix a volume ratio of 2 parts candi syrup to 1 part water.
3. Boil on low heat for 15 minutes
4. Let cool to room temperature covered
5. Add to fermenter and gently stir

By adding water and boiling you are sterilizing the added water, (not the syrup), and creating a more miscible solution. Adding syrup to a relatively cool primary or secondary fermentation without dilution will not permit even mixing due to the viscosity change under cooler temperatures. This may cause caking at the bottom of the fermenter."
 
Curious about the comment regarding "fermenting too fast"...is that even possible?

If the metabolic heat being produced rises above the upper limit for the strain then it could create fusels together with a juicy-fruit profile, (both considered negatives for this style). Too fast a fermentation could be an indication of an over-pitch.
 
By adding water and boiling you are sterilizing the added water, (not the syrup), and creating a more miscible solution. Adding syrup to a relatively cool primary or secondary fermentation without dilution will not permit even mixing due to the viscosity change under cooler temperatures. This may cause caking at the bottom of the fermenter."

Thanks for the explanation!
 
Just checked it around 1.030 and temp is close 77 degrees, still got a ways to go. Lost a little due to blow off but not much used fermcap


Been fermenting for 7 days at 80 degrees and its still bubbling once every two seconds. Still at 1.020 this may take couple weeks

Next batch I may start at 65 and ramp to 80 in 4 days instead of 6 days. Or maybe up the pitch rate

Taste allot of green apples and not to much beligian character not like wlp500 or 550. I know its still way early, not even done fermenting but not too many esters
 
I'm really keen to get this recipe underway. The problem I have is a Sydney summer. Day temps are around 30C (86F) and night temps around 21C (70F). This is great for the beach, but not so great for brewing.

To get around this I have a chest freezer with a thermostat. My question is, with the "free rise", will I need to heat or cool (or both)? I'd imagine letting it sit in 25C (77F) would make it push past 27C (80F). Yet if I was to cool it, the ambient night temp would be too low.

Any thoughts?
 
Been fermenting for 7 days at 80 degrees and its still bubbling once every two seconds. Still at 1.020 this may take couple weeks

Next batch I may start at 65 and ramp to 80 in 4 days instead of 6 days. Or maybe up the pitch rate

Taste allot of green apples and not to much beligian character not like wlp500 or 550. I know its still way early, not even done fermenting but not too many esters

Acetyldehyde is usually a precursor, (tart apple aroma). It should re-absorb in the later stages of ethanol production. Increasing the pitch by 8-10% should help.
 
I bottled mine last week (after a month, its too warm here to leave it out any longer) - although the recipe I followed is so different to the original, there was still a hectic plum flavour. Its not unpleasant, but a bit too strong at the moment. I am expecting it to mellow as it ages - and i intend letting this one age for a while.
 
Acetyldehyde is usually a precursor, (tart apple aroma). It should re-absorb in the later stages of ethanol production. Increasing the pitch by 8-10% should help.


1.016 adjusted for temperature 12 days fermenting going to give it a swirl and check again on Saturday or Sunday still at 80 degrees
 
1.016 adjusted for temperature 12 days fermenting going to give it a swirl and check again on Saturday or Sunday still at 80 degrees


Do you think racking would kick start it to get the last couple of points, or should I just let it sit in primary at 80 degrees
 
Do you think racking would kick start it to get the last couple of points, or should I just let it sit in primary at 80 degrees

At 1.016 you're close. In an extended secondary at 68-70F you should be able to drive the gravity down at least another 3 points.
 
I want to make this again soon. This is one beer I want to master. Since this took two weeks to ferment should I pitch more yeast next time or perhaps mash at 148 instead of 149.

What about raising fermentation temp to 80 in 4 days instead of 6
 
I want to make this again soon. This is one beer I want to master. Since this took two weeks to ferment should I pitch more yeast next time or perhaps mash at 148 instead of 149.

What about raising fermentation temp to 80 in 4 days instead of 6

The mash temps are fine at either 148 or 149F. Up the pitch by 10% each time until you get to FG in 7 days, (without going over 80F at any time).
 
Getting ready for my first go at this finally!! Have all my ingredients and an open ferm fridge. My only dilemma now is either to bottle or keg? Obviously it needs some aging and I dont mind tying up the keg for a year. But bottling would allow me to age a few for several years.
 
Getting ready for my first go at this finally!! Have all my ingredients and an open ferm fridge. My only dilemma now is either to bottle or keg? Obviously it needs some aging and I dont mind tying up the keg for a year. But bottling would allow me to age a few for several years.

I did bottle this one and have had relatively positive feedback for the few bottles I have opened. Now I am shelving and forgetting because she's still young.

I have to ask though, why can't you age in the keg? I have stuff that has been in kegs for a year while drinking it and I have enjoyed the changes through time - IPAs, stouts, etc.

I think you'd be happy witnessing the changes if you're in to that.
 
I wish I could comment on kegging the the Westy 12 but we have never done it. As long as the cellar temps are maintained I see no reason why it would not turn out well. Although I would opt for a stainless dispensing side rather than vinyl or ldpe hose.
 
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