Trub - to skim or not to skim

[macleanb]

Hi Guys

Been here before! Put AG #3 in the FV last night, and even though I recycled about 10 litres, the next 15 or so into the FV were still quite turbid (last 10 were as bright as a button) - recycle more next time - however I suspect that turning the flow on and off was part of the issue.


However, that said, when I pitched things looked not to bad, bu this morning I have a good head of what I am fairly sure is trub (too brown for yeast).

Do I leave it, or skim it, and if I skim it do I repitch as well (using S04). At least this time I am using a regular bucket so access is not an issue.

Cheers & ttfn benm


AG #3

Bens Summer Styrian Stunner
India Pale Ale


Type: All Grain
Date: 21/06/2008
Batch Size: 23.00 L
Brewer:
Boil Size: 26.33 L Asst Brewer:
Boil Time: 60 min Equipment: My Equipment
Taste Rating(out of 50): 35.0 Brewhouse Efficiency: 75.00
Taste Notes:

Ingredients

Amount Item Type % or IBU
3.00 kg Pale Malt, Maris Otter (5.9 EBC) Grain 48.78 %
1.75 kg Lager Malt (3.9 EBC) Grain 28.46 %
0.55 kg White Wheat Malt (4.7 EBC) Grain 8.94 %
0.30 kg Cara-Pils/Dextrine (3.9 EBC) Grain 4.88 %
0.30 kg Caramel/Crystal Malt - 80L (157.6 EBC) Grain 4.88 %
0.25 kg Acid Malt (5.9 EBC) Grain 4.07 %

30.00 gm Cascade [5.50 %] (60 min) Hops 15.8 IBU
50.00 gm Styrian Goldings [2.60 %] (60 min) Hops 12.5 IBU
40.00 gm Williamette [4.60 %] (60 min) Hops 17.7 IBU
85.00 gm Styrian Goldings [2.60 %] (15 min) Hops 9.5 IBU
25.00 gm Cascade [5.50 %] (80c steep 45 mins)
12.15 gm Gypsum (Calcium Sulfate) (Mash 60.0 min) Misc


Beer Profile
Est Original Gravity: 1.062 SG
Bitterness: 62.0 IBU

[macleanb]

Mornin' Daab, I did skim shortly after I posted, the head has already bounced back, and its a nice creamy colour now, with a few specs of brown, rather than a "complete chocolate" mouse on top.

I am fairily sure I have overdone it with the aroma hops, and this will have to mature long time to be drinkable. Is there a rule of thumb re aroma hops, coz I kinda weighted the amount of very low alpha (2.6) styrians via alpha, and I am now thinking this is very stupid when it comes to late/aroma hops.

ttfn benm

[spearmint-wino]

You can't over do it with the aroma hops

My thoughts exactly

Macleanb - I only skim if I have a disgustingly ugly amount of trub on the yeast head, otherwise I don't bother. I had a conversation with David Edge a while ago where he was saying that skimming can remove some of the bittering compounds and lead to a less bitter beer.

[macleanb]

yeah - it was big nasty trub - 1/4 inch of granular bown muck.

I had assimilated the mantra "more aroma hops is good" but scared myself a bit when I tasted it, as it tasted like alomost creosot-ish it was so aromatic/bitter....

So you dont think this will need extended conditioning to become palatable...

[Aleman]

I had assimilated the mantra "more aroma hops is good" but scared myself a bit when I tasted it, as it tasted like alomost creosot-ish it was so aromatic/bitter....

You can't have added anywhere near my 15 minute addition of 150g of 4.7% Bobek . . . . Followed by 50g at 80C for a steep.

Its smelling rather good, and is now clear to the 15L mark . . . . Its supposed to sit around in the keg till next weekend then I'll keg / bottle it . . . This week I'm cleaning 4 1/2 Cornii to get ready for it

[spearmint-wino]

Are you sure they are the sort of bittering compounds you want ? Have you tasted trub ?

Yes I have, and I agree, it is a touch on the bitter side...

[macleanb]

Yes and no, 85g styrian goldings & 25g Cascade as steep 80c for 45 minutes...