Learn how to start, monitor, and complete a brewing cycle.

This guide explains why each step matters, what to expect at each fermentation stage, and how to improve brewing consistency. It complements the beginner-focused First Brew guide.<hr data-start="2703" data-end="2706"><h1 data-start="2708" data-end="2770" id="brewing-guide-standard-brewing-process--best-practices">Brewing Guide: Standard Brewing Process &amp; Best Practices</h1>The iGulu brewing system controls temperature, pressure, and fermentation timing to ensure stable, consistent results. This guide helps you understand the brewing process and refine your technique.<hr data-start="2971" data-end="2974"><h2 data-start="2976" data-end="3002" id="1-before-you-start">1. Before You Start</h2>To ensure a smooth brew:<ul data-start="3030" data-end="3219"><li data-start="3030" data-end="3078" style="font-family: Inter; font-size: 16px;">Use purified water at 18&#x2013;25&#xB0;C (64&#x2013;77&#xB0;F).</li><li data-start="3079" data-end="3118" style="font-family: Inter; font-size: 16px;">Prepare all ingredients in advance.</li><li data-start="3119" data-end="3164" style="font-family: Inter; font-size: 16px;">Avoid shaking the keg after adding yeast.</li><li data-start="3165" data-end="3219" style="font-family: Inter; font-size: 16px;">Keep the machine in a stable indoor environment.</li></ul><hr data-start="3221" data-end="3224"><h2 data-start="3226" data-end="3268" id="2-standard-brewing-steps-explained">2. Standard Brewing Steps Explained<img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112707-25fceae1-5ab6-4101-acc5-413bfb8f3106-brewingguide.jpeg" style="width: 687px;" class="fr-fic fr-dib"></h2>&#x2460; Add WaterFill to the&#xA0;116 oz line. Correct volume ensures the machine runs the proper pressure and temperature curve.&#x2461; Add Hop Extract &#x2014; Stir WellEnsures consistent hop flavor and prevents uneven bitterness.&#x2462; Add Malt Extract &#x2014; Mix ThoroughlyUndissolved malt can cause slow or incomplete fermentation.&#x2463; Add Yeast &#x2014; Do Not OvermixSprinkle yeast on top, then lightly stir if needed. Avoid heavy mixing, which introduces oxygen and disturbs yeast activity.&#x2464; Seal the Keg &amp; Start BrewingInsert both tubes securely and start brewing via RFID or manual selection.<hr data-start="3966" data-end="3969"><h2 data-start="3971" data-end="4018" id="3-fermentation-timeline-whats-normal">3. Fermentation Timeline: What&#x2019;s Normal?</h2>Day 1&#x2013;2: Low Pressure (0&#x2013;2 psi) Is NormalYeast is hydrating and beginning to activate.Day 3&#x2013;5: Active Fermentation<ul data-start="4158" data-end="4285"><li data-start="4158" data-end="4210" style="font-family: Inter; font-size: 16px;">Pressure rises quickly (typical: 15&#x2013;24 psi).</li><li data-start="4211" data-end="4241" style="font-family: Inter; font-size: 16px;">Foam forms on the surface.</li><li data-start="4242" data-end="4285" style="font-family: Inter; font-size: 16px;">PRV may vent slightly &#x2014; this is expected.</li></ul>Toward the End of Fermentation<ul data-start="4328" data-end="4419"><li data-start="4328" data-end="4347" style="font-family: Inter; font-size: 16px;">Foam decreases.</li><li data-start="4348" data-end="4393" style="font-family: Inter; font-size: 16px;">Pressure stabilizes around 15&#x2013;24 psi.</li><li data-start="4394" data-end="4419" style="font-family: Inter; font-size: 16px;">Beer begins to clarify.</li></ul>Cooling Stage<ul data-start="4445" data-end="4539"><li data-start="4445" data-end="4485" style="font-family: Inter; font-size: 16px;">Pressure may drop slightly &#x2014; normal.</li><li data-start="4486" data-end="4539" style="font-family: Inter; font-size: 16px;">CO&#x2082; dissolves into the beer, improving carbonation.</li></ul><hr data-start="4541" data-end="4544"><h2 data-start="4546" data-end="4579" id="4-tips-for-better-results">4. Tips for Better Results</h2><ul data-start="4581" data-end="4841"><li data-start="4581" data-end="4629" style="font-family: Inter; font-size: 16px;">Keep the keg still once fermentation starts.</li><li data-start="4630" data-end="4690" style="font-family: Inter; font-size: 16px;">Do not open the keg or remove tubes during fermentation.</li><li data-start="4691" data-end="4737" style="font-family: Inter; font-size: 16px;">Use CO&#x2082; for sampling (never open the lid).</li><li data-start="4738" data-end="4787" style="font-family: Inter; font-size: 16px;">Maintain a steady room temperature (20&#x2013;25&#xB0;C).</li><li data-start="4788" data-end="4841" style="font-family: Inter; font-size: 16px;">If experimenting, adjust only one factor at a time.</li></ul><hr data-start="4843" data-end="4846"><h2 data-start="4848" data-end="4885" id="5-avoid-these-common-mistakes">5. Avoid These Common Mistakes</h2><ul data-start="4887" data-end="5055"><li data-start="4887" data-end="4913" style="font-family: Inter; font-size: 16px;">Incorrect water volume</li><li data-start="4914" data-end="4950" style="font-family: Inter; font-size: 16px;">Aggressive stirring of the yeast</li><li data-start="4951" data-end="4982" style="font-family: Inter; font-size: 16px;">Brewing in a very cold room</li><li data-start="4983" data-end="5009" style="font-family: Inter; font-size: 16px;">Loose tube connections</li><li data-start="5010" data-end="5055" style="font-family: Inter; font-size: 16px;">Expecting pressure too early in the process</li></ul><hr><h2 data-start="5062" data-end="5087" id="6reference-video">6.Reference video&#xFF1A;</h2><iframe width="100%" src="https://www.youtube.com/embed/NUShahm7Ft4??si=mQmQYJ_GUUQ51BEx&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable">&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;</iframe>

Brewing Guide

See how to pour beer smoothly using CO₂ or air-pump mode.

<div data-page-id="RlFZdp98XoatmsxTjBXcQDuznab" data-lark-html-role="root" data-docx-has-block-data="true" id="isPasted">Step 1&#xFF1A;Ensure that the current batch has fully completed fermentation.<div data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;eb82c789-6f42-409e-a2f6-907e5b03f41d&quot;,&quot;height&quot;:321.7782857142857,&quot;width&quot;:324,&quot;currHeight&quot;:321.7782857142857,&quot;currWidth&quot;:324,&quot;natrualHeight&quot;:869,&quot;natrualWidth&quot;:875,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:0.3702857142857143,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fpreview%2FKi48bZhOwobLYjxjb4UcWP6AnNc%2F%3Fpreview_type%3D16&quot;,&quot;file_token&quot;:&quot;Ki48bZhOwobLYjxjb4UcWP6AnNc&quot;,&quot;image_type&quot;:&quot;image/png&quot;,&quot;size&quot;:102793,&quot;comments&quot;:[]}]}"><img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112707-60158020-6719-4ceb-bebb-d66d2b301235-dispense.jpg" style="width: 300px;" class="fr-fic fr-dib"></div>Step 2&#xFF1A;Confirm that the CO&#x2082; cylinder is securely installed and that the CO&#x2082; adapter valve is fully opened.<div data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;b981a41c-f42b-4ade-8b71-5920d322d810&quot;,&quot;height&quot;:430.3180428134557,&quot;width&quot;:322,&quot;currHeight&quot;:430.3180428134557,&quot;currWidth&quot;:322,&quot;natrualHeight&quot;:874,&quot;natrualWidth&quot;:654,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:0.4923547400611621,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fpreview%2FTbPFbdWjLo3TKtxm91tcX1Mtnve%2F%3Fpreview_type%3D16&quot;,&quot;file_token&quot;:&quot;TbPFbdWjLo3TKtxm91tcX1Mtnve&quot;,&quot;image_type&quot;:&quot;image/png&quot;,&quot;size&quot;:66715,&quot;comments&quot;:[]}]}"><img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112707-65f42e5b-8ae6-4da8-aa32-46e255aae953-dispensing2.jpg" style="width: 300px;" class="fr-fic fr-dib"></div>Step 3&#xFF1A;Open the clamp valve on the beer tubing.<div data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;510da2f3-35c7-479f-ab76-2c777fc99da6&quot;,&quot;height&quot;:220.74198473282442,&quot;width&quot;:332,&quot;currHeight&quot;:220.74198473282442,&quot;currWidth&quot;:332,&quot;natrualHeight&quot;:871,&quot;natrualWidth&quot;:1310,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:0.2534351145038168,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fpreview%2FWtGDbI6nWosYZFxM1hNcvDernpf%2F%3Fpreview_type%3D16&quot;,&quot;file_token&quot;:&quot;WtGDbI6nWosYZFxM1hNcvDernpf&quot;,&quot;image_type&quot;:&quot;image/png&quot;,&quot;size&quot;:814837,&quot;comments&quot;:[]}]}"><img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112707-b8b19900-0e1a-4af6-9b52-747388100e7c-dispensing3.jpg" style="width: 300px;" class="fr-fic fr-dib"></div>Step 4&#xFF1A;Pull down the tap handle to pour the beer.<div data-type="image" data-ace-gallery-json="{&quot;items&quot;:[{&quot;uuid&quot;:&quot;158f95e2-3f7f-44e0-8901-5c99122b4357&quot;,&quot;height&quot;:432.9908256880734,&quot;width&quot;:324,&quot;currHeight&quot;:432.9908256880734,&quot;currWidth&quot;:324,&quot;natrualHeight&quot;:874,&quot;natrualWidth&quot;:654,&quot;pluginName&quot;:&quot;imageUpload&quot;,&quot;scale&quot;:0.4954128440366973,&quot;src&quot;:&quot;https%3A%2F%2Finternal-api-drive-stream.feishu.cn%2Fspace%2Fapi%2Fbox%2Fstream%2Fdownload%2Fpreview%2FUcP1bgyUJoAPZyxv9qRcieienod%2F%3Fpreview_type%3D16&quot;,&quot;file_token&quot;:&quot;UcP1bgyUJoAPZyxv9qRcieienod&quot;,&quot;image_type&quot;:&quot;image/png&quot;,&quot;size&quot;:64736,&quot;comments&quot;:[]}]}"><img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112707-945ff596-f42b-409a-a0e9-7bbd43cb1baf-dispensing4.jpg" style="width: 300px;" class="fr-fic fr-dib"></div><div data-page-id="RlFZdp98XoatmsxTjBXcQDuznab" data-lark-html-role="root" data-docx-has-block-data="true" id="isPasted"><div data-emoji-id="question"> </div></div>Is a CO&#x2082; cylinder required to use the machine?A CO&#x2082; cylinder is&#xA0;optional. The F1 has a built-in air pump that lets you dispense your drink without CO&#x2082; &#x2014; just note that drinks should be consumed within&#xA0;24 hours when using air-pump only. If you prefer traditional carbonation or want longer storage, you can use a CO&#x2082; cylinder. One cylinder carbonates up to 20 gallons of beer.<div data-page-id="RlFZdp98XoatmsxTjBXcQDuznab" data-lark-html-role="root" data-docx-has-block-data="true" id="isPasted"><div data-emoji-id="question">What type of CO&#x2082; cylinder should I purchase?</div>The CO&#x2082; adapter on the back of the F1 machine supports cylinders with a TR21*4 thread, such as the blue screw-in type SodaStream bottles.</div><img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112709-f589656c-2f45-4cb1-a749-d092356bd723-co2.png" style="width: 300px;" class="fr-fic fr-dii">Reference video:</div><iframe width="100%" src="https://www.youtube.com/embed/Q1Eo1AqSIj4??si=mCuOUCBApzKgyusQ&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable">&#xA0;</iframe>

Dispensing Guide

Understand CO₂ usage, setup, and best practices for serving beer.

Using CO&#x2082; with your iGulu F1 gives you better carbonation, smoother dispensing, and longer storage for your finished brews. This guide explains whether CO&#x2082; is required, which cylinders are compatible, how to install CO&#x2082; safely, and how to troubleshoot common issues.<hr data-start="532" data-end="535"><h1 data-start="537" data-end="592" id="1-is-a-co-cylinder-required-to-use-the-machine">1. Is a CO&#x2082; cylinder required to use the machine?</h1>No &#x2014;&#xA0;CO&#x2082; is optional. The iGulu F1 includes a built-in air pump, which allows you to dispense your drink without CO&#x2082;.When using air pump only:<ul data-start="755" data-end="867"><li data-start="755" data-end="802" style="font-family: Inter; font-size: 16px;">Suitable for tasting or short-term drinking</li><li data-start="803" data-end="867" style="font-family: Inter; font-size: 16px;">Best consumed within 24 hours, as air shortens freshness</li></ul>When using CO&#x2082;:<ul data-start="891" data-end="1004"><li data-start="891" data-end="922" style="font-family: Inter; font-size: 16px;">Provides proper carbonation</li><li data-start="923" data-end="953" style="font-family: Inter; font-size: 16px;">Allows smoother dispensing</li><li data-start="954" data-end="1004" style="font-family: Inter; font-size: 16px;">Extends storage up to 30 days in COOL mode</li></ul><hr data-start="1102" data-end="1105"><h1 data-start="1107" data-end="1160" id="2-what-type-of-co-cylinder-should-i-purchase">2. What type of CO&#x2082; cylinder should I purchase?</h1>The CO&#x2082; adapter on the back of the F1 machine supports cylinders with a TR21*4 thread, such as the blue screw-in type SodaStream bottles.<img src="https://attachments.gorgias.help/B9Zby7ZG4KexeNk3/hc/g5KDM28BMRmx9aBy/2025112909-347055d4-81ab-421f-9a10-9c6109d7595e-co2.png" style="width: 300px;" class="fr-fic fr-dib"><hr data-start="1654" data-end="1657"><h1 data-start="1659" data-end="1704" id="3-how-to-install-a-co-cylinder-safely">3. How to install a CO&#x2082; cylinder safely</h1>Reference video:<h3 data-start="2153" data-end="2171" id><iframe width="100%" src="https://www.youtube.com/embed/SSI1ybgwVEA?&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable">&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;</iframe></h3><hr data-start="2697" data-end="2700"><h1 data-start="2702" data-end="2741" id="4how-to-use-co-cylinder-adapters1-only">4.How to use CO&#x2082; Cylinder Adapter&#xFF08;S1 Only&#xFF09;</h1>The original three-way adapter for S1 is no longer produced. S1 users can use the following compatible alternatives&#xFF1A;<ul data-start="1059" data-end="1161"><li data-start="1059" data-end="1101" style="font-family: Inter; font-size: 16px;">Mini CO&#x2082; Regulator + 16g cartridge</li><li data-start="1102" data-end="1161" style="font-family: Inter; font-size: 16px;">Single-head adapter + Soda-machine-style CO&#x2082; cylinder</li></ul>Learn more: <a href="https://igulu.com/blogs/brew-academy/igulu-co-adapter-guide-for-s1-brewers" target="_blank" rel="noopener noreferrer">CO&#x2082; Adapter</a>&#xA0;<hr>5.How to use Equal Pressure Filling kits<h3 data-start="4178" data-end="4196" id="reference-video">Reference video:</h3><iframe width="100%" src="https://www.youtube.com/embed/ugxm3--36EQ?&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable">&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;&#xA0;</iframe><hr data-start="4710" data-end="4713"><h1 data-start="4715" data-end="4747" id="6-when-to-contact-support">6. When to contact support</h1>Please contact customer service at <a data-start="4786" data-end="4803" rel="noopener">support@igulu.com</a> if:<ul data-start="4811" data-end="5001"><li data-start="4811" data-end="4850" style="font-family: Inter; font-size: 16px;">CO&#x2082; does not pressurize the machine</li><li data-start="4851" data-end="4882" style="font-family: Inter; font-size: 16px;">You hear continuous leaking</li><li data-start="4883" data-end="4914" style="font-family: Inter; font-size: 16px;">Pressure exceeds 30 psi</li><li data-start="4915" data-end="4941" style="font-family: Inter; font-size: 16px;">The keg lid is damaged</li></ul>We&#x2019;re here to help ensure you brew and dispense safely.

CO₂ Guide

Follow essential cleaning routines to keep your machine running properly.

Maintaining your iGulu system properly ensures consistent flavor, stable fermentation performance, and long-term reliability. This guide focuses on routine cleaning, deep cleaning, sanitizing removable parts, and caring for key components.<h1 data-start="621" data-end="662" id="isPasted">1. Routine Cleaning After Each Brew</h1>After each fermentation cycle, the keg and dispensing components must be cleaned to prevent residue buildup.<h3 data-start="774" data-end="812" id="what-to-clean-after-every-brew">What to clean after every brew</h3><ul data-start="813" data-end="932"><li data-start="813" data-end="833" style="font-family: Inter; font-size: 16px;">Fermentation keg</li><li data-start="834" data-end="845" style="font-family: Inter; font-size: 16px;">Keg lid</li><li data-start="846" data-end="880" style="font-family: Inter; font-size: 16px;">O-rings (all seals on the lid)</li><li data-start="881" data-end="900" style="font-family: Inter; font-size: 16px;">Dispensing tube</li><li data-start="901" data-end="932" style="font-family: Inter; font-size: 16px;">Beer outlet &amp; gas connector</li></ul><h3 data-start="934" data-end="954" id="how-to-clean">How to clean</h3><ul data-start="955" data-end="1149"><li data-start="955" data-end="994" style="font-family: Inter; font-size: 16px;">Rinse all parts with warm water</li><li data-start="995" data-end="1051" style="font-family: Inter; font-size: 16px;">Use a soft cloth or sponge to remove visible residue</li><li data-start="1052" data-end="1094" style="font-family: Inter; font-size: 16px;">Avoid abrasive pads or harsh chemicals</li><li data-start="1095" data-end="1149" style="font-family: Inter; font-size: 16px;">Let parts air-dry completely before reassembly</li></ul><h3 data-start="1151" data-end="1175" id="why-this-matters">Why this matters</h3>Residue from yeast, proteins, hops, or sugars can affect carbonation, block the dispensing tube, or cause off-flavors in the next batch.Reference Video:<iframe width="100%" src="https://www.youtube.com/embed/ia0eEzMNR7o?&amp;list=PL5tiTWVG6KyV134DnplnsSC12lGEAHXwG&amp;index=5&amp;wmode=opaque&amp;rel=0" frameborder="0" allowfullscreen class="fr-draggable"></iframe> <hr data-start="1314" data-end="1317"><h1 data-start="1319" data-end="1384" id="2-deep-cleaning--sanitizing-recommended-between-batches">2. Deep Cleaning &amp; Sanitizing (Recommended Between Batches)</h1>Deep cleaning is not required after every brew, but it is strongly recommended:<ul data-start="1467" data-end="1614"><li data-start="1467" data-end="1515" style="font-family: Inter; font-size: 16px;">When switching between different beer styles</li><li data-start="1516" data-end="1538" style="font-family: Inter; font-size: 16px;">After long storage</li><li data-start="1539" data-end="1575" style="font-family: Inter; font-size: 16px;">If you notice unexpected flavors</li><li data-start="1576" data-end="1614" style="font-family: Inter; font-size: 16px;">If foam or pressure issues reoccur</li></ul><h3 data-start="1616" data-end="1643" id="deep-cleaning-steps">Deep cleaning steps</h3><ol data-start="1644" data-end="1895"><li data-start="1644" data-end="1718" style="font-family: Inter; font-size: 16px;">Fully remove O-rings, the dispensing tube, and the magnetic tube cap.</li><li data-start="1719" data-end="1794" style="font-family: Inter; font-size: 16px;">Soak removable parts in warm water with a mild, food-safe cleaner.</li><li data-start="1795" data-end="1855" style="font-family: Inter; font-size: 16px;">Use a soft brush or cloth to clean hard-to-reach areas.</li><li data-start="1856" data-end="1895" style="font-family: Inter; font-size: 16px;">Rinse thoroughly and dry completely.</li></ol><h3 data-start="1897" data-end="1937" id="sanitizing-optional-but-useful">Sanitizing (optional but useful)</h3>You may use a food-safe brewing sanitizer (e.g., StarSan) on removable parts such as:<ul data-start="2028" data-end="2088"><li data-start="2028" data-end="2044" style="font-family: Inter; font-size: 16px;">Keg interior</li><li data-start="2045" data-end="2056" style="font-family: Inter; font-size: 16px;">Keg lid</li><li data-start="2057" data-end="2068" style="font-family: Inter; font-size: 16px;">O-rings</li><li data-start="2069" data-end="2088" style="font-family: Inter; font-size: 16px;">Dispensing tube</li></ul>Important:<ul data-start="2107" data-end="2222"><li data-start="2107" data-end="2161" style="font-family: Inter; font-size: 16px;">Do not circulate sanitizers inside the machine</li><li data-start="2162" data-end="2222" style="font-family: Inter; font-size: 16px;">Do not run sanitizing liquids through internal pumps</li></ul>Only sanitize external, removable components.<hr data-start="2275" data-end="2278"><h1 data-start="2280" data-end="2320" id="3-caring-for-the-fermentation-keg">3. Caring for the Fermentation Keg</h1>The keg is pressure-bearing and must remain clean and intact.<h3 data-start="2385" data-end="2407" id="best-practices">Best practices</h3><ul data-start="2408" data-end="2613"><li data-start="2408" data-end="2462" style="font-family: Inter; font-size: 16px;">Always release pressure via the PRV before opening</li><li data-start="2463" data-end="2512" style="font-family: Inter; font-size: 16px;">Inspect the interior for scratches or residue</li><li data-start="2513" data-end="2567" style="font-family: Inter; font-size: 16px;">Avoid prolonged exposure to very hot water (&gt;90&#xB0;C)</li><li data-start="2568" data-end="2613" style="font-family: Inter; font-size: 16px;">Allow the keg to fully dry before storing</li></ul><h3 data-start="2615" data-end="2637" id="dishwasher-use">Dishwasher use</h3>Only place the keg in the dishwasher if it is explicitly labeled&#xA0;dishwasher-safe. Handwashing is recommended to avoid heat deformation.<hr data-start="2781" data-end="2784"><h1 data-start="2786" data-end="2828" id="4-maintaining-the-keg-lid--o-rings">4. Maintaining the Keg Lid &amp; O-Rings</h1>O-rings are essential for maintaining pressure and avoiding CO&#x2082; leaks.<h3 data-start="2902" data-end="2932" id="maintenance-guidelines">Maintenance guidelines</h3><ul data-start="2933" data-end="3161"><li data-start="2933" data-end="2971" style="font-family: Inter; font-size: 16px;">Remove and clean O-rings regularly</li><li data-start="2972" data-end="3049" style="font-family: Inter; font-size: 16px;">Apply a small amount of clean water during installation to avoid twisting</li><li data-start="3050" data-end="3100" style="font-family: Inter; font-size: 16px;">Ensure the O-ring seats properly in its groove</li><li data-start="3101" data-end="3161" style="font-family: Inter; font-size: 16px;">Replace O-rings when cracked, dry, stretched, or leaking</li></ul>A damaged O-ring is one of the most common causes of pressure loss and improper carbonation.<hr data-start="3257" data-end="3260"><h1 data-start="3262" data-end="3308" id="5-cleaning-the-dispensing-tube--outlet">5. Cleaning the Dispensing Tube &amp; Outlet</h1>The dispensing system must stay clear to ensure smooth pouring.<h3 data-start="3375" data-end="3404" id="cleaning-instructions">Cleaning instructions</h3><ul data-start="3405" data-end="3626"><li data-start="3405" data-end="3455" style="font-family: Inter; font-size: 16px;">Flush the tube with warm water after every use</li><li data-start="3456" data-end="3513" style="font-family: Inter; font-size: 16px;">Make sure no residue or yeast particles remain inside</li><li data-start="3514" data-end="3558" style="font-family: Inter; font-size: 16px;">Inspect the spout and outlet for buildup</li><li data-start="3559" data-end="3626" style="font-family: Inter; font-size: 16px;">Allow the tube to dry fully to prevent odor or microbial growth</li></ul>This step greatly reduces foam issues during dispensing.<hr data-start="3686" data-end="3689"><h1 data-start="3691" data-end="3732" id="6-machine-exterior--interior-care">6. Machine Exterior &amp; Interior Care</h1><h3 data-start="3734" data-end="3766" id="how-to-clean-the-machine">How to clean the machine</h3><ul data-start="3767" data-end="4009"><li data-start="3767" data-end="3810" style="font-family: Inter; font-size: 16px;">Turn off power and disconnect the cable</li><li data-start="3811" data-end="3850" style="font-family: Inter; font-size: 16px;">Wipe the exterior with a damp cloth</li><li data-start="3851" data-end="3918" style="font-family: Inter; font-size: 16px;">Wipe the interior of the top compartment where the keg connects</li><li data-start="3919" data-end="3969" style="font-family: Inter; font-size: 16px;">Avoid spraying water directly into the machine</li><li data-start="3970" data-end="4009" style="font-family: Inter; font-size: 16px;">Do not turn the machine upside down</li></ul><h3 data-start="4011" data-end="4029" id="do-not-use">Do not use</h3><ul data-start="4030" data-end="4088"><li data-start="4030" data-end="4040" style="font-family: Inter; font-size: 16px;">Bleach</li><li data-start="4041" data-end="4060" style="font-family: Inter; font-size: 16px;">Strong solvents</li><li data-start="4061" data-end="4088" style="font-family: Inter; font-size: 16px;">Abrasive cleaning tools</li></ul>These may damage interior surfaces or leave harmful residues.<hr data-start="4153" data-end="4156"><h1 data-start="4158" data-end="4205" id="7-replacement-schedule--wear-indicators">7. Replacement Schedule &amp; Wear Indicators</h1><h3 data-start="4207" data-end="4245" id="replace-o-rings-if-you-notice">Replace O-rings if you notice:</h3><ul data-start="4246" data-end="4318"><li data-start="4246" data-end="4256" style="font-family: Inter; font-size: 16px;">Cracks</li><li data-start="4257" data-end="4274" style="font-family: Inter; font-size: 16px;">Discoloration</li><li data-start="4275" data-end="4288" style="font-family: Inter; font-size: 16px;">Hardening</li><li data-start="4289" data-end="4318" style="font-family: Inter; font-size: 16px;">Leaks during fermentation</li></ul><h3 data-start="4320" data-end="4370" id="replace-the-dispensing-tube-if-you-notice">Replace the dispensing tube if you notice:</h3><ul data-start="4371" data-end="4428"><li data-start="4371" data-end="4384" style="font-family: Inter; font-size: 16px;">Stiffness</li><li data-start="4385" data-end="4402" style="font-family: Inter; font-size: 16px;">Discoloration</li><li data-start="4403" data-end="4411" style="font-family: Inter; font-size: 16px;">Odor</li><li data-start="4412" data-end="4428" style="font-family: Inter; font-size: 16px;">Reduced flow</li></ul><h3 data-start="4430" data-end="4461" id="replace-the-keg-lid-if">Replace the keg lid if:</h3><ul data-start="4462" data-end="4590"><li data-start="4462" data-end="4496" style="font-family: Inter; font-size: 16px;">The PRV does not seal properly</li><li data-start="4497" data-end="4540" style="font-family: Inter; font-size: 16px;">The gasket no longer maintains pressure</li><li data-start="4541" data-end="4590" style="font-family: Inter; font-size: 16px;">There is visible warping or structural damage</li></ul><hr data-start="4592" data-end="4595"><h1 data-start="4597" data-end="4626" id="8-why-cleaning-matters">8. Why Cleaning Matters</h1>Proper cleaning prevents:<ul data-start="4655" data-end="4811"><li data-start="4655" data-end="4670" style="font-family: Inter; font-size: 16px;">Off-flavors</li><li data-start="4671" data-end="4702" style="font-family: Inter; font-size: 16px;">Slow or uneven fermentation</li><li data-start="4703" data-end="4742" style="font-family: Inter; font-size: 16px;">Undercarbonation or overcarbonation</li><li data-start="4743" data-end="4767" style="font-family: Inter; font-size: 16px;">Dispensing blockages</li><li data-start="4768" data-end="4811" style="font-family: Inter; font-size: 16px;">Contamination by wild yeast or bacteria</li></ul>A clean system ensures that each batch tastes the way it should.Learn more: <a href="https://igulu.com/blogs/brew-academy/sip-with-confidence-your-comprehensive-guide-to-maintaining-the-igulu-f1-home-brewing-machine">Comprehensive Guide to Maintaining</a>

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