Guava in beer

Guava brings musk and tropical aroma more than sugar

A ripe guava smells of pear, strawberry and something musky that people either love or call feral. That musk is what you are paying for. The sugar is modest: most ripe guavas sit around 8 to 12 °Brix, so a kilo of fruit adds far less gravity than a kilo of mango pulp would.

Pink guava gives a salmon blush and a sweeter, berry-like nose. White guava, such as the Allahabad Safeda types sold across north India in winter, is greener and sharper. Both work. Pink fruit makes a prettier beer, white fruit a more refreshing one.

Pectin is the real problem to solve

Guava is one of the richest common sources of pectin. That is why it sets so easily into guava cheese. In beer, pectin means a stubborn haze and a slightly slick mouthfeel that no amount of cold crashing will clear.

The fix is pectic enzyme (pectinase), added to the fruit before it meets the beer. Follow the dose on the packet, because strengths differ between brands. Give it a few hours at room temperature before adding. If you skip this step, accept a cloudy beer and call it rustic.

How much guava to use and when to add it

For a noticeable but balanced fruit character, start at 100 to 150 grams of fruit per litre of beer. For a beer that tastes like the fruit first, go to 200 to 250 grams per litre. A 20 litre batch at 150 g/L needs 3 kg of cut fruit.

Add it after primary fermentation has slowed, usually once the gravity is within a few points of target. Fruit added at high kräusen loses aroma as CO2 scrubs it out. Fruit added late keeps more of the top notes. Expect a short refermentation as the yeast finds the new sugar, so leave headspace and a working airlock.

Our guide to adding fruit to beer covers the general method. Guava just adds two extra jobs: enzyme and seeds.

Seeds, skins and sanitising the fruit

Guava seeds are hard and numerous. They will block a racking cane and a bottling wand. Halve the fruit, scoop the seedy core out or push the flesh through a coarse sieve. The skin carries plenty of aroma, so leave it on for ripe, clean fruit.

Wash the fruit, then either freeze it or bring the purée briefly to about 70 to 75 °C to cut down wild yeast and bacteria. Freezing also breaks cell walls and releases juice. We prefer freezing because heat pushes guava towards a cooked, jammy note.

The one floor detail that matters most: weigh the fruit after trimming, not before. Seeds and cores can be a quarter of the weight. A recipe built on whole fruit weight will come out thin.

Styles that suit guava

Guava likes acidity and low bitterness. Good homes include:

• A Berliner weisse or kettle sour at 3 to 4% ABV, where the fruit fills out a thin, tart base.
• A gose, with a pinch of salt and even a little chilli, in the spirit of the guava sold on the street with chilli salt.
• A wheat beer with a clean American ale yeast, under 15 IBU.
• A hazy pale ale with tropical hops, where guava rounds the hop fruit.

Avoid heavy roast and high bitterness. Guava musk clashes with both. If you want heat, our guide to chilli in beer explains how to dose it in small, controlled steps.

What guava adds to gravity and alcohol

Work out the sugar before you add the fruit, so the finished strength does not surprise you. Squeeze a little juice onto a refractometer. Say it reads 10 °Brix. At 150 grams of fruit per litre, that is about 15 grams of sugar per litre of beer, which raises the gravity by roughly 6 points (0.006). Fermented out, that adds about 0.8% ABV, a little less once you allow for the water the fruit brings with it.

Guava also brings a gentle acidity of its own. In a clean wheat beer that reads as freshness. In a beer that is already sour, it can tip the balance towards sharp, so taste the base beer and the fruit together before you commit the whole batch. If the blend tastes thin, a few percent of oats or wheat in the next grist gives the fruit more body to sit on.

Write the numbers in your brew log: fruit weight after trimming, juice Brix, gravity before and after the fruit. Next season you will know exactly what a kilo of guava does.

Fresh fruit or bought purée

Fresh guava is cheap in season, roughly November to February in much of India. It is nearly impossible to find good the rest of the year. Aseptic guava purée is consistent and already seed free, but check the label for added sugar, citric acid or preservatives. Sorbate or benzoate in a purée can stall your yeast.

Designing a fruit beer that tastes balanced every time, rather than lucky once, comes down to base beer choice, acidity and timing. That is a style design problem, not a recipe to copy.

Your first step: buy one kilo of ripe guava, purée it, split a finished wheat beer into two jars and add fruit to one at 150 g/L. Taste them side by side after a week.

Common questions

Do I need pectic enzyme for guava beer?

Yes, if you want a clear beer. Guava is very high in pectin, which causes a permanent haze unless you treat the fruit with pectinase before adding it.

How much guava should I add to 20 litres?

Start with about 3 kg of trimmed fruit, which is 150 grams per litre. Go up to 5 kg for a fruit-forward beer.

Is pink or white guava better for beer?

Pink guava gives colour and a sweeter berry aroma. White guava is greener and sharper. Both work, so choose the one that suits your base beer.