Tuesday 13 October 2015

Wai-ti weizen (100% wheat beer)

I brewed this beer to try something different. I wanted to see what an 100% wheat beer would taste like, and I wanted to match the banana clove yeast flavor with a fruity new world hop. Aiming for something like a boozy silky fruit salad effect. 

Yeast starter and hops measured out
I used New Zealand Wai-ti hops - these are lovely fruity hops. I'd never used them before, but they came with a great write up, and are quite subtle which is what i was looking for. 

Wort pouring into the fermenter

To make sure I got the effect i wanted, I split the batch into two parts and aggressively dry-hopped the second batch at twice the rate of the first. 
Healthy fermentation - this yeast was really quick to start and gave impressive head!
In the end I preferred the less dry hopped version, the overall impression allowed more of the yeast flavor to shine. This was a superb beer, at the time the best I had made. It scored 69 at the London Amateur Brewers annual competition, and came 4th in its class. One judge scored it 71 (of 80) which was really very good. 



It's a hazy brew - but we don't care! this did clear after a couple of months


Grain Bill
3.8kg Wheat Malt

Mash - BIAB 80mins @ 67C
15.5L batch

Hops 
Mash - 10g Dr Rudi
Mash - 21g Wai-ti
Boil 60min - 7g Dr Rudi

#1 Normal Hopped (10L) 
Whirlpool 20g Wai-ti @ 180F
Dry Hop 20g 

OG - 1063
FG - 1008

#2 Hopped up (5.5L)
Whirlpool 20g @ 180F Wai-ti 
Dry hop 23g Wai-ti

Yeast - Wyeast Bavarian Hefewiezen (#2 repitch)  

Thursday 8 October 2015

Chestnut farmhouse ale saison - brett experiment 2



A favourite beer style of mine is "saison." This is a pretty broad syle, more of a category - like "bitter",  saison can ultimately end up being a very different experience depending on the brewer, Its also quite hard to work out what you are getting. I've spent quite a bit of time in Brussels, which is close  enough to the spiritual home of saison in the French/Belgian borders to find a reasonable good selection of styles to try. 

In the tourist shops and supermarkets choice is pretty limited to the big names (Saison du pont normally) and a few others amongst the usual array of Trappist and abbey offerings. But in the trendier beer bars (think craft ale UK style, except it feels like Belgium has been doing "craft" for a long time) and in the bottle shops you can find all types of exciting bottles jostling for your attention. In particular the Belgians go in for wrapping some in tissue paper, and whilst some come in familiar 330ml capped bottles, Others are packaged in the sturdier champagne style, which goes some way to indicating how unpredictable these beers are when fermenting.

About saison
Saisons are typically dry, the yeast tends to attenuate pretty well, chewing up most of the sugars. This makes the beers very refreshing, and tasty even at low alcohol. This is not always the case, as well as some excellent ones (Saison IV is just superb) I've had a more than a few duds as well.

Traditionally these were drinks made for farmworkers, apparently in the absence of cider or wine a beer would made instead. And because of this when making a saison one is at absolute liberty to basically chuck in any cereals you like, malted or not without worrying too much about authenticity. It also makes this an expedient beer to make if your stocks are running low. Only got a kg of pale malt? Don't worry! chuck in half a kilo of oats, use the rest of that wheat, chuck in the rye. I would normally add spelt to this but of course I've pretty much used all of my stock up already making IPA. However, what I did have is some chestnut.

Chestnuts
Chestnuts are a fairly common sight in the UK, and Ive always been a fan. I love chestnut stuffing, and roast chestnuts sold in packets from burning coals in the depth of winter. But mainly chestnuts are underused in general, and as their full name (horse chestnut) suggests they traditionally mostly got left for animal fodder. But you can make flour from chestnuts, and I figured you must be able to make a beer. And so you can - there are some Italian and French varieties from Corsica and Sardinia. But I've struggled to find anything closer to home. The obvious thing was to make one. I found some tins of pre-roasted chestnut, you would normally make some stuffing or ravioli filling from these.  decided that the simplest thing to do would be to use the methodology that I had followed in making pumpkin ale, do a brew in the bag batch and add the roast chestnut straight into the mash.

Unfortunately I don't know where my chestnuts were from, so I cant vouch that they are local. But I thought they would suit a saison because the dryness of the beer would allow the the chestnut to shine.

Fiddling with the funk
I decided to make two different versions of the beer from the same batch. In terms of style - I think there are 3 main thrusts:

1. Plain saison (dry crisp ale fermented with saison yeast)
2. Funky Saison (dry and crisp but with pleasing funk, either "barnyard" or "fruity" - both analogous in my palate to that "scrumpy" taste)
3. 1 or 2 plus hopped to within an inch of its life like a pale/IPA.


I wanted to see if I could successfully reproduce some of the lovely fruity funky flavors that Saison IV and others exhibit so well. In order to tell what was responsible for what, I split the finished batch into two, bottled the first as it was and poured the last gallon into a demijohn with a vial of "brussels" brett yeast (bretttanomyces). The Yeast Bay describes this as a classic lambic flavour, so i'm expecting lots of farmyard straw flavours. There hydrometer reading was 1006, leaving enough sugar in for the Brett to eat as a secondary, where it should enter a super-attenuating state, and produce all those funky flavors. I have checked and there is visibly a layer of small bubbles at the neck of the demijohn - exciting stuff!

Lastly - I am increasing of the opinion that life is too short for unhoppy beer. Sure there are some 
great examples that you can buy. But you can buy them, so I remain to be convinced that I need to be 
lumbered with 20 pints of the stuff myself, especially when I might end up there myself if I botch a 
batch of beer.  So I also added plenty of flavour (also a bit of whatever was left over) and dosed with Apollo and a heavy hand for some proper hoppiness.