A Beginner’s Guide to Home Brewing Beer

This post is intended as a short walk-through of my home brewing process, from milling the grain to bottling the finished beer. The recipe itself is simply an example to illustrate each step, but the same principles apply to countless other beer styles with only minor adjustments.

For this batch, I decided to brew an American Wheat Beer. I’ve brewed my fair share of German-style wheat beers over the years, and they usually turned out great. The combination of banana and clove esters from traditional German yeast strains paired with noble hops is a classic for a reason. This time, however, I wanted something crisper for warm summer evenings: a fruity, citrus-forward wheat beer at around 5% ABV.

The goal wasn’t just to brew a refreshing summer beer, but also to explore how a clean American yeast strain changes the character compared to a traditional German Weissbier and how generous late-hop additions and dry hopping affect the finished beer.

Equipment

One of the great things about homebrewing is that you can start with relatively simple and affordable equipment. My setup is designed for small 15-20-litre batches and consists of a few basic components:

• Electric brewing kettle (25 L): Used for heating the brewing water and boiling the wort. The built-in temperature control makes it easy to heat the water to the required mash temperatures.
• Lauter tun (30 L): Basically a bucket with a tab and stainless-steel false bottom that allows the liquid wort to be separated from the spent grain after mashing.
• Fermentation vessel with airlock (30 L): A sealed container where the yeast converts the sugars into alcohol. The airlock allows carbon dioxide to escape while preventing oxygen and contaminants from entering.

This setup is relatively inexpensive and is more than sufficient for producing high-quality beer at home. More advanced systems are also available, such as all-in-one brewing units that combine mashing, lautering and boiling in a single vessel with automated temperature control. These systems are convenient but come at a significantly higher cost.

For anyone starting out, a simple setup like this offers a great balance between cost, flexibility and learning the brewing process.

Whole Grains & The Grind

I almost always buy whole grains in bulk rather than pre-milled malt. Unmilled grain keeps significantly longer without losing quality or going stale through oxidation and moisture absorption.

Right before mash-in, I run the grain bill through my hand-mill. Getting the crush right is crucial: you want to crack the husk open without completely pulverizing the husk into flour, which can lead to a stuck sparge. Especially with wheat that can be a problem, as it lacks an outer husk to help form a natural filter bed.

The Recipe (15 L Finished Beer)

The Target Numbers

These values provide a rough idea of what the finished beer should be like. They describe the beer’s strength, sweetness, bitterness and appearance, and are useful for checking that the brewing process is on track.

• Original Gravity (OG): ~1.048 – The sugar concentration of the wort before fermentation. Higher values generally lead to stronger beers.
• Final Gravity (FG): ~1.010 – The remaining sugar after fermentation. Lower values produce a drier, less sweet beer.
• ABV: ~5.0% – The alcohol content of the finished beer.
• IBU: ~22 – International Bitterness Units, a measure of hop bitterness. Around 20–25 IBU gives a balanced, moderately bitter beer.
• Color: ~10 EBC – The color of the beer measured using the European Brewery Convention scale. A value of 8 EBC corresponds to a pale golden beer. Higher values typically come from roasted malts.

The Grain

• 2.0 kg Wheat Malt (close to 50% of the grain, providing a soft, full mouthfeel)
• 2.0 kg Pilsner Malt (Base malt for a clean, pale backbone)
• 0.2 kg Acidulated Malt (Added to naturally lower the mash pH. If the brewing water has high alkalinity, like mine, the mash can become too alkaline for the enzymes that convert starches into sugars. A small amount of acidulated malt helps create the right conditions for efficient conversion and a cleaner-tasting beer.)

The Hop Schedule

• 10 g Hallertauer Perle (6% Alpha) for 60 min (Clean, moderate baseline bitterness)
• 10 g Cascade (10% Alpha) for 10 min (Early citrus flavor additions)
• 25 g Cascade in the Whirlpool after boiling (at 80 °C for 20 min, extracts essential oils like limonene and myrcene without adding harsh bitterness)
• 40 g Cascade Dry Hop at the end of fermentation (for 3 days) (Pure fresh grapefruit and floral aroma)

Yeast

• 1 packet (5 gr) Fermentis SafAle US-05 (A clean, neutral top-fermenting strain that lets the hops and malt take center stage, unlike the dominant banana/clove profile of a German Torulaspora or Saccharomyces cerevisiae wheat yeast)

The Brew Day Step-by-Step

1. The Mash

Mashing is the first major step in brewing, where the crushed malted grains are mixed with hot water to extract their sugars. During this stage, naturally occurring enzymes in the malt break down starches into fermentable sugars that yeast can later convert into alcohol. The mash temperature determines which enzymes are most active and therefore influences the beer’s sweetness, body and final character.

I usually start by heating the water, in this case 14 L, to 71 °C. Because the grain is at room temperature, adding it to the hot water lowers the temperature to the desired mash temperature of 65 °C.

Main Saccharification Rest: Hold at 65 °C for 60 minutes. This temperature favors beta-amylase activity, producing a highly fermentable wort and a crisp finish.

Alpha-Amylase Rest: Raise the mash temperature to 72 °C for 15 minutes. This allows alpha-amylase to create some dextrins, adding body and balance to the finished beer.

Mash Out: Raise the temperature to 78 °C for 10 minutes. This stops enzyme activity and makes the wort easier to extract during lautering.

2. Lautering and Sparging

After mashing, I transfer the mash to the lauter tun, where the false bottom acts as a filter to separate the liquid wort from the grain bed. The liquid wort is drained into the (cleaned) brewing kettle again while the grain bed remains behind. This separation is called lautering.

Since the grains still contain a considerable amount of sugar and retains water, the grain bed is rinsed with an additional 10–12 L of water at 76–78 °C. This process, known as sparging, washes the remaining sugars into the kettle without extracting excessive tannins from the grain husks. By the end of the sparge, I have collected around 18 L of wort, ready for the boil.

3. Boiling, Hop Additions and Cooling

After lautering, the wort is brought to a vigorous boil for 60 minutes. Boiling sterilizes the wort, stops enzyme activity and helps remove unwanted compounds. It is also the stage where hops are added. The timing of each hop addition has a major influence on the finished beer: early additions contribute bitterness, while later additions preserve more of the delicate hop aroma.

• At the Beginning: Add 10 g Hallertauer Perle for the main bittering addition.
• For the last 10 min: Add 10 g Cascade. This addition contributes both a moderate amount of bitterness and citrusy hop flavour. If desired, add a kettle fining such as Irish Moss or Whirlfloc, as well as yeast nutrient, at this stage.
• Hop Stand (80 °C): Once the boil is complete, allow the wort to cool to 80 °C before adding 25 g Cascade. Steeping the hops for 20 minutes at this lower temperature extracts intense citrus and floral aromas while minimizing additional bitterness.

The hot wort must then be cooled quickly to the yeast’s fermentation temperature. Rapid cooling minimizes the time the wort spends at temperatures where microorganisms can grow, reducing the risk of contamination before the brewing yeast is added. It also helps improve the clarity of the finished beer.

To cool the wort to 20–22 °C, I use a counterflow chiller. Hot wort flows through an inner tube while cold tap water flows in the opposite direction through an outer jacket. This efficiently transfers heat from the wort to the cooling water, allowing the chilled wort to flow directly into the fermenter at the correct pitching temperature.

If you don’t have a counterflow chiller, there are several alternatives. An immersion chiller is a popular option, but for occasional homebrewers, even clean, sanitized plastic bottles filled with ice can be placed directly into the hot wort to speed up cooling. Whichever method you use, the goal is the same: cool the wort to the yeast’s pitching temperature as quickly as practical while maintaining good sanitation.

Fermentation & Dry Hopping

Once the wort has cooled to around 20 °C I pitch a single packet of SafAle US-05 yeast. The yeast now begins converting the fermentable sugars into alcohol and carbon dioxide (CO₂), while also producing many of the flavours that define the finished beer.

Days 1–7: Keep the fermenter at 20–22 °C. This is the ideal temperature range for US-05, allowing the yeast to ferment efficiently while producing a clean flavour profile. Temperatures up to about 25 °C are generally still acceptable, but higher temperatures can lead to unwanted fruity or solvent-like off-flavours. Temperatures much below 18 °C slow the yeast down considerably, increasing the fermentation time.

To monitor the progress of the fermentation, I use a Brewbrain Float, which continuously measures both the wort’s specific gravity and temperature inside the fermenter. If you don’t have a wireless hydrometer, the traditional approach is to periodically measure the gravity with a hydrometer. Alternatively, simply observing the airlock provides a rough indication of fermentation activity, although it cannot confirm when fermentation is complete.

After 7 days (plus/minus one day, depending on yeast activity and temperature) the gravity should have remained stable for two consecutive days (around 1.010 for this recipe), which means primary fermentation is complete and it is time for the dry hop.

Days 8–10: Add 40 g of Cascade directly to the fermenter and allow the hops to steep for three days at 20–22 °C. Unlike the hops added during the boil, dry hops are never heated, allowing them to contribute fresh citrus and floral aromas with almost no additional bitterness.

Days 11–12 (optional): If you have temperature control, perform a cold crash by lowering the temperature to 2–6 °C for about two days. This helps the yeast and hop particles settle to the bottom of the fermenter, resulting in a clearer beer.

After the cold crash the beer is ready for bottling. If I don’t do a cold crash I usually move the beer to another fermentation vessel for two days, which also helps removing most of the sediment.

Bottling and Conditioning

Once fermentation and dry hopping is complete, it’s time to bottle the beer. Before bottling, I thoroughly clean and sanitize flip-top bottles using hot water. Good sanitation at this stage is essential, as the beer is no longer protected by active fermentation.

To carbonate the beer naturally, a small amount of sugar is added before bottling. The remaining yeast ferments this sugar inside the sealed bottles, producing carbon dioxide that dissolves into the beer and creates carbonation.

For this American Wheat Beer, I aim for a carbonation level of 2.6–2.8 volumes of CO₂. Assuming the beer is around 20 °C when bottled:

• For this American Wheat Beer, I aim for a carbonation level of 2.6–2.8 volumes of CO₂. Assuming the beer is around 20 °C when bottled:
• Dissolve 95–105 g of table sugar (sucrose) in a small amount of boiling water.
• Add the cooled sugar solution to a clean bottling vessel with a tap at the bottom (I use my brewing kettle).
• Carefully siphon the fermented beer into the vessel, allowing the incoming beer to mix with the sugar solution. Avoid splashing to minimize oxygen exposure.
• Using a separate bottling vessel helps distribute the priming sugar evenly throughout the beer and removes remaining sediment in the fermentation vessel.
• Fill the sanitized bottles and seal them immediately.

An alternative to flip-top bottles are 5L casks (mini-kegs). Instead of cleaning and capping over 30 individual bottles for a 15 L batch, you only need to process three casks. They use the exact same natural bottle-conditioning process with priming sugar , feature a built-in bottom tap and top air-vent , and slide easily into a standard fridge, giving you a genuine draft beer experience right from home without investing in a full kegging setup. However, one problem with these casks is the lack of pressure measurement and control (you can’t just open it to release pressure), so I manually attached a barometer to one of my casks to monitor the pressure.

To monitor the progress of bottle conditioning, I use a bottle pressure gauge (barometer) fitted to one of the bottles. It provides an easy way to see when carbonation has developed without opening a bottle. If you don’t have a pressure gauge, simply leave the bottles at room temperature. If you don’t have a pressure gauge, simply leave the bottles at room temperature for the recommended conditioning time and check the carbonation by opening a bottle after about two weeks.

Note: Flip-top bottles are designed to handle the pressure created during normal bottle conditioning, and the rubber seal can release a small amount of excess gas if pressure becomes too high.

Store the bottles/casks at 20–22 °C for 10–14 days to allow the yeast to produce carbonation. Afterwards, move them to a cooler place (around 10–15 °C) for storage and maturation. The beer is usually enjoyable after about two weeks, but the flavours and carbonation are often even better after three to four weeks.

Tasting Notes

The finished beer of my batch had a pale straw color, similar to a typical german wheat beer, but slightly brighter. It had a fresh aroma with some fruity notes (according to the description of Cascade hops grapefruit and lemon, but I would not be able tell without knowing). While it still had some of the wheat character, it was cleaner, fruit-forward and a bit more bitter than a typical german Weissbier with a dry, refreshing finish. Overall somewhere between a German wheat beer and an American Wheat Ale.

Note on carbonation and the Reinheitsgebot

If brewing strictly according to the German Reinheitsgebot, priming sugar would not be used. Instead, a small amount of unfermented wort would be set aside after boiling, stored cold in the refrigerator or freezer and added back to the fermented beer before bottling. The remaining sugars in this wort then provide the carbonation through a second fermentation in the bottle.

While this method follows the traditional approach, it makes it more difficult to control the exact carbonation level, as the sugar content of the reserved wort can vary. It also introduces an additional handling step, increasing the risk of contamination. For these reasons, I usually use a measured amount of pure sugar for more predictable results.