An interesting thread.
I've been doing my own reasearch in to making an slightly modified I&G beer. I've played with a 15l french oak beer with too much oaking.
Based on the taste profile of: Caramel, Toffee, Vanilla, Malt, Honey and Hops I've matched the following that I want to try (comments welcome).
IBU 25
ABV 6.4%
Volume 5G
SRM ~13
The malt base needs to have a backbone to cope with the oak, so I was thinking a ratio of:
65% base of standard pale malt / 2 row add the following
10% Malt - Victory (20L)
12% Malt - Honey (20L)
08% Malt - Carastan (Caramel Crystal)
03% Malt - Carapils (for head retention)
02% Honey
Then for hops go with (depends on the AA of the hops I get but ratiowise):
2 Fuggles 60mins : 1 Goldings (aromatic 15 mins)
Yeast: WYeast #1968 ESB - I've used this before. It requires a good ferment for the yeast to mop up the Diacetyl. Once the yeast has moved into a stationary phase then keg with a second ferment. (another is #1318 that looks interesting)
Oak: American White Oak
When this gets added alters the resulting beer - just as it does wine. Have a read of this:
http://en.wikipedia.org/wiki/Oak_(wine)
I've used french with 30g (~1oz) into 15 litres (2.5G) in the FV. I would perhaps use a maximum of that amount of US in 30l (5G), instead perhaps run with 20g in the secondary keg instead of running in the primary.
The other hard part about chips is getting (a) the right quality wood and (b) getting the idea of toast.. if they've been toasted.
The french chips I've had were already in a sealed packet and didn't suffer from any infection issues used straight. Alternative is to soak them in spirit and steam/toast them to add the heat for sterilisation. I've heard of a muslin bag with a few glass marbles in before and to sterilise you boil to remove the harsh tannin before adding to the keg.
Also use Irish Moss in the boil last 15m. I'd also use bottled still water of you're going to the hassle of oaking for taste..
FV of 7 days, move to secondary for 5 days of warmth followed by 35-50 days of cold conditioning.
So any comments on this - will the ratio match what I'm expecting?