Yet another Styrian Stunner

[andyp]

As this seems to be No.1 in the JBK hit parade, I fancy an extract go. There are issues that I could do with a bit of advice tho.

I've got two 1.6Kg tins of John Bull Maris Otter LME (pre-boiled!) I'll make it up to 1040 - 1045 so I'll imagine that'll be about 20 Ltrs.

Then using Daabs hop calc. and aiming for an IBU in the late 20s the hop schedule with a full boil would be something like
70gms Styrian Gs (3.1) 60 mins
20gms last10 mins
20 gms steeped 20 mins
maybe a handful dry hopped, but that pretty much uses the hops all up.

However I can only boil 5 ltrs, poss 6 after any boil up, over and out has passed. Not a problem for the pre boiled LME but the bittering will be I think. Is there a utilisation figure for just a quarter of the full vol for the boil vol? (makes sense?)

I'm not concerned about being too precise so I was thinking of boiling for 90 mins (much difference?)

I think a saw a recipe somewhere that had 50% challanger for bittering. I've got some at 5.6 or is this drifting too far away from a Stunner. I'd quite like some styr. golds. left over as I fancy a Landlord clone in a bit.

Also Safale S04 or Nottingham?

Cheers for any help.

[mooj]

Hi Andyp, I think your thread must have been overlooked due to the great diacetyl/ london pride debate going on elsewhere.

Here's my 2p worth, however, as I haven't brewed this before I'm possibly not the best to comment.

However I can only boil 5 ltrs, poss 6 after any boil up, over and out has passed. Not a problem for the pre boiled LME but the bittering will be I think. Is there a utilisation figure for just a quarter of the full vol for the boil vol? (makes sense?)

Your biggest problem is your boiling volume - are you saying your pan only holds 6 litres? Or 6 litres of water and the extract? Either way you will get poor hop utilization if you add all the extract at the beginning of the boil. So apart from investing in a much larger pan or boiler (which would be my number one recommendation) I would do two batches, one with maybe only half a can and make your hop additions accordingly as for a 20litre batch. Then afterwards boil the remaining extract with as much water possible just to dissolve it properley.

I think a saw a recipe somewhere that had 50% challanger for bittering. I've got some at 5.6 or is this drifting too far away from a Stunner. I'd quite like some styr. golds. left over as I fancy a Landlord clone in a bit.

I would stick to styrians only as this is what defines this recipe really, although I'm sure the addition of challenger would make a nice brew also.

Also Safale S04 or Nottingham?

hmmmm. not sure, my personal preference is Nottingham but that is simply because I'm not fond of so4, I seem to recall vossy saying SO4 is well suited in this brew.

[andyp]

Cheers mooj. I know! I thought I must have offended someone, although as you say the diacetyl/pride debate has been well worth following.

Yep 6 litres in total and I was thinking of adding just half a tin so at least the density was about right. Two pans is prob an idea as every litttle helps maybe for the late hops it's gonna be v crowded in there.

I still might sneak in a handful of challenger as the bittering level of the Styrians is really low, noone'll notice.

I spose it is going to be guess work so I'll boil for 90mins and add a bit extra just for luck.

Cheers

[mitch]

According to the Tinseth hop utilization formula:

(Utilization @ G1) = (Ulilization @ G2) * 0.991^(G1 - G2)

Where G1 and G2 are specific gravities (in points).

Code: Select all

Concen-	
tration		          Relative Hop Utilization:
factor
               OG       OG      OG      OG       OG      OG
               1.040   1.041   1.042   1.043   1.044   1.045

1.0          1.00     1.00     1.00     1.00     1.00     1.00
1.5          1.20     1.20     1.21     1.21     1.22     1.23
2.0          1.44     1.45     1.46     1.48     1.49     1.50
2.5          1.72     1.74     1.77     1.79     1.82     1.84
3.0          2.06     2.10     2.14     2.18     2.22     2.26
3.5          2.47     2.53     2.58     2.64     2.70     2.77
4.0          2.96     3.04     3.12     3.21     3.30     3.39
4.5          3.55     3.66     3.78     3.90     4.02     4.15
5.0          4.25     4.40     4.57     4.74     4.91     5.09

For example, if you are boiling with 1/4 the total water and your OG is 1.045 then according to the Tinseth formula you should use 3.39 times more hops.

[andyp]

Wow, some people know their stuff

Two one hour boils definitely seems the way to go, then with half as much hops again.

That's tomorrow taken care of then.

Cheers

[andyp]

I can see what you're all on about. A sample after less than 2 weeks in the barrel and----------come to Papa!

Perhaps lacking a bit in bitterness but no surprises there, hey?

Now that I've got my new big boiler I'll definitely do another one in the spring and get it even more gorgeous.

It was well worth all the boiling faffle (which I wont have now on anyway) Ta for the advice.

[andyp]

A great investment in domestic harmony too. I'm out of the kitchen and into the garage. Mrs andyp much happier now and I'm mainly left in peace, apart from the odd curious peek. Why are we always testing a sample when they do that!