Brewing a West Coast IPA at home with a clean dry finish

What sets a West Coast IPA apart

The BJCP American IPA guidelines give an original gravity of 1.056 to 1.070, a final gravity of 1.008 to 1.014, 5.5 to 7.5% ABV and 40 to 70 IBU. The West Coast take sits at the dry, pale end of that range. It is clear, golden to light amber, with firm bitterness and aromas of pine, resin, citrus and grapefruit.

It is the opposite of a hazy IPA in almost every choice: low protein, little or no crystal malt, clean yeast, high sulphate water and a firm bitterness. Our guide to brewing a hazy IPA shows the contrast. An English IPA, covered in our guide to brewing with Goldings hops, is maltier and earthier.

A 20 litre recipe

For a 20 litre batch at about 72% efficiency, aiming for an OG near 1.063:

• 5.0 kg pale malt or American 2-row (91%)
• 0.2 kg light crystal malt, around 20 to 40 EBC (4%)
• 0.3 kg dextrose, added in the boil (5%)

Hops: Columbus or another high alpha hop at 60 minutes for about 45 to 50 IBU. Add Centennial and Cascade at 10 minutes and again in a whirlpool at around 80 °C for 20 minutes. Dry hop with 80 to 100 g of Simcoe, Centennial or a similar pine and citrus variety. Total bitterness lands around 60 IBU.

The dextrose dries the finish. Many brewers drop the crystal malt entirely for an even leaner beer.

Hops are the biggest cost in this recipe and the most perishable ingredient. Buy pellets in vacuum or nitrogen flushed packs, keep them in the freezer and use them within a few months of opening. Hops stored warm lose aroma fast, which no amount of dry hopping can fix.

Mash low and treat the water

Mash at 64 to 65 °C for 60 to 75 minutes to make a highly fermentable wort. That is the single biggest lever for a dry finish. Our guide to fermentation temperature control covers the other half of the job.

West Coast IPAs suit water with plenty of sulphate and little chloride. Sulphate sharpens hop bitterness and dryness. A sulphate to chloride ratio of about 3:1 or higher is a common target. Many brewers add gypsum (calcium sulphate) to reach 150 to 300 ppm sulphate. Indian borewell water varies widely and can be high in bicarbonate. Start from RO or packaged water and build up with gypsum for predictable results.

Clean yeast, cool fermentation

Use a clean American ale strain such as US-05 or a similar Chico type. One or two 11 g packets for 20 litres at this gravity. Ferment at 18 to 19 °C. Warmer and the yeast adds fruity esters that blur the hop character. A clean, cool fermentation is what makes the hops taste sharp.

In Indian conditions this means active cooling. A fridge with a controller is ideal. A water bath with frozen bottles can hold 18 to 20 °C for the first critical days if you swap them often.

Dry hop and package without oxygen

Add dry hops when fermentation is nearly finished and leave them for three to five days. Then cold crash, fine with gelatine if you like and package. Oxygen is the enemy of hop aroma. Every transfer is a chance to lose it. Keg if you can, purging with carbon dioxide. Bottle carefully if you cannot. Drink the beer within a month or two.

Carbonate to about 2.4 to 2.6 volumes. Serve at 6 to 8 °C in a clean glass. A good West Coast IPA should be brilliant, with a firm white head that lasts.

Where dry and bitter goes wrong

The common faults are easy to spot. A sweet, heavy finish usually means a hot mash or too much crystal malt. Harsh bitterness can come from too much late hop matter or high alkalinity water. Muddy hop aroma often traces back to warm fermentation or oxygen at packaging. Tasting your beer with those causes in mind is how you improve batch by batch. Designing a recipe from the style outwards, balancing grist, water, hops and yeast, is the real step up.

Your first step: get a water report from your local supplier or a lab before you brew. Note the sulphate, chloride and bicarbonate figures so you know how much gypsum to add.