Neil Fisher, Co-Founder & Head Brewer of WeldWerks in Greeley, Colorado
For most of our New England-style IPAs our water profile targets are around 175–200 ppm chloride, 75–100 ppm sulfate, and less than 150 ppm calcium. Depending on your base ion profile, strictly using calcium chloride and calcium sulfate to achieve those targets can result in too high a concentration of calcium, which may affect yeast behavior, specifically flocculation, so consider magnesium sulfate as an alternative for your sulfate additions.
We use a fair amount of flaked wheat and flaked oats in a lot of our IPAs, mainly for their contributions to the mouthfeel and body of the beer. But we’ve found that more than 15% of flaked wheat or flaked oats can lend a bit more sharp “starchiness” to the beer, and if the grist exceeds more than 20% high-protein grains, it can be difficult to maintain colloidal stability.
We utilize a very small (5–8 IBUs) first wort hop addition in nearly every beer we brew, mostly to give us a softer baseline bitterness to build from and to help combat boil-overs in the kettle. But beyond that, all of our other hop additions for NEIPAs take place in the whirlpool. We typically stagger our whirlpool additions over 20–30 minutes, just to bring out more complexity and unique expressions from the hops given the varying time and temperature of those additions. For homebrewers, simplifying it to a larger flameout addition or even utilizing a hop stand would likely produce similar results. We are always trying to find the perfect balance between hop flavor, hop aroma, and hop bitterness, so diversifying the whirlpool schedule has worked well for us.
When it comes to dry hopping, we’ve found leaving the hops in contact 8 or 9 days to be the sweet spot for most of our beers, but we’ve had great results with as few as 5 days. As for total hop loads, one of our most popular beers, Extra Extra Juicy Bits, is dry hopped at nearly 10 lbs./bbl (5 oz. per gallon/37 grams per L) and it’s a surprisingly balanced and drinkable beer despite the extreme dry hop rate. But extended cold conditioning times are a must for heavily dry hopped beers, otherwise hop burn becomes a real issue.
When selecting hops for this style, I think Citra®, Mosaic®, and El Dorado® is a tough combination to beat (Juicy Bits is 1:1:1 of each). When we go to Yakima every year for hop selection and harvest, we’re specifically looking for the complex citrus and tropical fruit expressions of those specific varietals. Our Citra® lots are usually characterized by ripe tangerine and Valencia orange juice, while our Mosaic® lot is a pineapple bomb, and our El Dorado® selection is a tropical fruit medley of candied mango, passion fruit, and papaya.
We use London Ale III almost exclusively for IPAs because we’ve found it’s been the most reliable and consistent in terms of ester production, attenuation, and flocculation. We slightly underpitch so that the added stress promotes ester development, but we also want a somewhat clean, healthy fermentation to ensure proper attenuation and to avoid any phenolics. London Ale III fermented with the right conditions throws delicate stone fruit esters, which are a perfect complement to the citrus and tropical fruit character from most of our hops. Our fermentations stay steady in the 66–69 °F (19–21 °C) range for most IPAs, which has worked well for our fermentation and the start of dry hopping. Oxygen is probably the single most influential factor in brewing New England-style IPAs, so finding ways to keep dissolved oxygen as low as possible would improve your beer more than the quality of your ingredients, equipment, or ANYTHING else that goes into brewing. Every system and setup is different, but purging with CO2 is a must when racking, packaging, and you could even try blanketing with CO2 while dry hopping to minimize the oxygen pick-up
Its worth subscribing to BYO online, lots of useful information, not into this style but a number of Pro brewers give their advice, this is from one of them