It looks good, but I might consider backing off a bit on the darker malts, between the carafa, crystal, chocolate and coffee, you're looking at almost 20% of your grist.
If your posts are airtight, as they should be, you don't need to hook up the serving lines. I typically don't hook up my beer lines until the kegs are carbed.
I had the same problem where the hazelnut flavor didn't mellow. The biggest problem is that all extracts are not created equal - if you're trying out a new brand, definitely err on the side of less, you can always add more.
I've never heard of it, but since it's proprietary, you may have trouble finding it. I would just go with Northern Brewer, you can find that almost anywhere.
I've done this recipe a couple times. What I would recommend:
- Make a larger sour mash than they recommend. I think they recommend 1 pint - I would do about a gallon or so. I found that 1 pint really didn't do much.
- I would add some plain (unflavored) yogurt to the sour mash. Make sure...
Good idea, but you can adjust your strike temp for the temp of your grain if it is 35 degrees. I'll bring my computer with my excel database if anyone needs to use it. I'll try not to burn down your house like I almost did to Boston's.