Next on the list was water, our water is very good for the beers we brew so it just need slight tweaking with salts to make the hop flavours sing.
As for the last but most important ingredient, yeast, we decided to try something new. At Black Isle we have our own special culture, a house strain, which gives Blonde its lovely estery notes and Red Kite its rich malt backbone, but for a hoppy IPA we decided to go with a classic west coast American yeast famous for its clean flavours and ability to showcase hops.
All in all, the recipe formulation took about 2-3 months and involved endless chats/tastings about what we were aiming to create. On the brew-day the team was really excited to brew something new so we all started at 6am. It went beautifully with everything going to plan, which is a first in new recipes for me…
Once she was put to bed we tested every day to assess the fermentation and flavour formation. The beer had come out good but didn’t have the quite the right blend of hops flavours I was looking for. We were going to dry hop but a series of quick recalculations was needed to work out how to put it back into balance which meant all those little experiments with blonde helped immensely. We gave it a full month to cold mature, to mellow out all these flavours. Now it’s in keg and bottle it’s really a beer I can say I’m proud of (though I’m not saying I won’t tweak around a little if I get to brew it again… I am a brewer after all).
The finished product is a bold hitting cacophony of sweet grapefruit lychee flavour with a strong piney undertone and a pinch of tropical fruit with enough malt to hold those flavours in balance. 7.9% so it’s a good 1/3rd of a pint job.
Name wise, this is literally the hardest part of brewing. Many suggestions were aired, with Bullfinch to tie in with Goldfinch looking likely but I felt that we should link it with our other special strong beer, Hibernator. To showcase the links with our amazing Scottish malts, organic hops from New Zealand and the Yakima Valley, Washington, we finally decided on the name Migrator.