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<!doctype html><html data-theme=light lang=en xmlns=http://www.w3.org/1999/xhtml><head><meta charset=UTF-8><meta name=description><meta content="width=device-width,initial-scale=1" name=viewport><meta content=#FF7E3C name=theme-color><meta content=#CC5A26 media=(prefers-color-scheme:dark) name=theme-color><title>Homebrew - Aron Petau</title><link href=https://aron.petau.net/project/homebrew/ rel=canonical><link href=https://mastodon.online/@reprintedAron rel=me><meta content=@reprintedAron@mastodon.online name=fediverse:creator><link href=https://aron.petau.net/favicon.png rel=icon type=image/png><link href=https://aron.petau.net/apple-touch-icon.png rel=apple-touch-icon sizes=180x180 type=image/png><link crossorigin href=https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css integrity=sha512-... referrerpolicy=no-referrer rel=stylesheet><link title="Aron Petau - RSS Feed" href=https://aron.petau.net/rss.xml rel=alternate type=application/rss+xml><link title="Aron Petau - Atom Feed" href=https://aron.petau.net/atom.xml rel=alternate type=application/atom+xml><style>:root{--accent-color:#ff7e3c}[data-theme=dark]{--accent-color:#cc5a26}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--accent-color:#cc5a26}}</style><link href=https://aron.petau.net/style.css rel=stylesheet><link href=https://aron.petau.net/css/timeline.css rel=stylesheet><link href=https://aron.petau.net/css/mermaid.css rel=stylesheet><link href=https://aron.petau.net/css/skills.css rel=stylesheet><link href=https://aron.petau.net/css/gallery.css rel=stylesheet><script defer src=https://aron.petau.net/closable.js></script><script defer src=https://aron.petau.net/copy-button.js></script><script data-goatcounter=https://awebsite.goatcounter.com/count defer src=https://aron.petau.net/count.js></script><script defer src=https://aron.petau.net/fuse.js></script><script defer src=https://aron.petau.net/search-fuse.js></script><script defer src=https://aron.petau.net/theme-switcher.js></script><script type=module>import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
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mermaid.initialize({ startOnLoad: true });</script><meta content="Aron Petau" property=og:site_name><meta content="Homebrew - Aron Petau" property=og:title><meta content=https://aron.petau.net/project/homebrew/ property=og:url><meta content="A bubbly hobby of mine" property=og:description><meta content=https://aron.petau.net/processed_images/beer_tap.d0e9c35a78d13234.jpg property=og:image><meta content=en_US property=og:locale><body><header id=site-nav><nav><a href=#main-content tabindex=0> Skip to Main Content </a><ul><li id=home><a href=https://aron.petau.net> <i class=icon></i>Aron Petau</a><li class=divider><li><a href=https://aron.petau.net/project/>Projects</a><li><a href=https://aron.petau.net/pages/contact/>Contact</a><li><a href=https://aron.petau.net/pages/cv/>CV</a><li><a href=https://aron.petau.net/pages/about/>About</a><li id=search><button class=circle id=search-toggle title=Search><i class=icon></i></button><li id=language-switcher><details class=closable><summary class=circle title=Language><i class=icon></i></summary> <ul><li><a href=https://aron.petau.net//de/project/homebrew/ lang=de>Deutsch</a></ul></details><li id=theme-switcher><details class=closable><summary class=circle title=Theme><i class=icon></i></summary> <ul><li><button title="Switch to Light Theme" class=circle id=theme-light><i class=icon></i></button><li><button title="Switch to Dark Theme" class=circle id=theme-dark><i class=icon></i></button><li><button title="Use System Theme" class=circle id=theme-system><i class=icon></i></button></ul></details><li id=feed><details class=closable><summary class=circle title=Feed><i class=icon></i></summary> <ul><li><a href=https://aron.petau.net/rss.xml>RSS</a><li><a href=https://aron.petau.net/atom.xml>Atom</a></ul></details><li id=repo><a class=circle href=https://forgejo.petau.net/aron/awebsite title=Repository> <i class=icon></i> </a></ul></nav><div id=search-container><label class=visually-hidden for=search-bar>Search</label><input placeholder="Search for…" autocomplete=off disabled id=search-bar type=search><div id=search-results-container><div id=search-results></div></div></div></header><main id=main-content><article><div id=banner-container><img class=full-bleed id=banner src=https://aron.petau.net/project/homebrew/beer_tap.jpg></div><div id=heading><p><small> <time datetime=" 2022-03-01T00:00:00+00:00">Published on March 01, 2022</time></small><h1>Homebrew</h1><p><small><span>By Aron Petau</span><span> • </span><span>3 minutes read</span><span> • </span></small><ul class=tags><li><a class=tag href=https://aron.petau.net/tags/altbier/>altbier</a><li><a class=tag href=https://aron.petau.net/tags/beer/>beer</a><li><a class=tag href=https://aron.petau.net/tags/experiment/>experiment</a><li><a class=tag href=https://aron.petau.net/tags/fermentation/>fermentation</a><li><a class=tag href=https://aron.petau.net/tags/hops/>hops</a><li><a class=tag href=https://aron.petau.net/tags/homebrew/>homebrew</a><li><a class=tag href=https://aron.petau.net/tags/keg/>keg</a><li><a class=tag href=https://aron.petau.net/tags/lager/>lager</a><li><a class=tag href=https://aron.petau.net/tags/pressure/>pressure</a><li><a class=tag href=https://aron.petau.net/tags/private/>private</a><li><a class=tag href=https://aron.petau.net/tags/sustainability/>sustainability</a><li><a class=tag href=https://aron.petau.net/tags/yeast/>yeast</a></ul></div><div id=buttons-container><a title="Go to Top" href=#top id=go-to-top><i class=icon></i></a><a href="https://shareopenly.org/share/?url=https://aron.petau.net/project/homebrew/&text=A%20bubbly%20hobby%20of%20mine" id=share title=Share><i class=icon></i></a><a title="File an Issue" href=https://forgejo.petau.net/aron/awebsite/issues id=issue><i class=icon></i></a></div><h2 id=Brewing>Brewing</h2><h3 id=Making_my_own_beer>Making my own beer</h3><p>I love hosting, I love experimenting in the Kitchen. Starting with homebrews was a natural fit for me and during the first wave of Covid-19, I went the whole homebrewer’s route of bottle fermentation and small batches later elevating my game with larger batches of 50 liters and a pressure tank system.<p>Starting out, I found it fascinating, how just 4 rather simple ingredients, malt, hops, water and yeast, can form such an incredible range of taste experiences. It was and still is, a tremendous learning experience, where one slowly has to accept not being able to control the process fully and find room for creativity.<p>Why do I present such an unrelated non-academic hobby here? I simply do not regard it as unrelated, experimenting and optimizing a process and a workflow, creating optimal conditions for the yeast to do its job feels very similar to approaching a coding project. Yeast and what it does fascinates me. Every time I open the latch to release some pressure on the Tank I think of the awesome symbiotic relationships yeast has with humans and how many different strains live there together to create a unique, yet tailored flavor. Several ideas are floating around of changing the brewing process by capturing the created carbon dioxide and using it productively. I could see a car tire being filled with my beer gas, or an algae farm munching away on my CO2 byproducts. Within a closed-loop pressurized system, such ideas actually become realizable and I would love to explore them further.<p>I am not yet an expert on algae, but I can manage with yeast and I believe they can coexist and create a more sustainable cycle of production. Young Henrys, a brewery in Australia is already incorporating algae into its industrial process: <a href=https://younghenrys.com/algae>The Algae project</a><p>Such ideas do not come into the industry by themselves: I believe that art and the exploratory discovery of novel techniques are the same things. Good and inventive design can improve society and make steps towards sustainability. I want to be part of that and would love to find new ways of using yeast in other design contexts: See whether I can make them work in a closed circular system, make them calculate things for me, or simply making my next beer taste awesome with just the right amount of fizz.<div id=image-gallery><ul class=gallery><li class=gallery-item><a class=lightbox href=https://aron.petau.net/project/homebrew/beer_setup.jpg target=_blank> <img alt="A photo showcasing the latest version of a homebrew setup with pressure tanks and a fermentation chamber." src=https://aron.petau.net/project/homebrew/beer_setup.jpg> </a> <p class=caption>The latest iteration of my homebrew setup, using pressure tanks and a pressurized fermentation chamber</p><li class=gallery-item><a class=lightbox href=https://aron.petau.net/project/homebrew/beer_setup_2.jpg target=_blank> <img alt="An image of the electric kettle used in the brewing process." src=https://aron.petau.net/project/homebrew/beer_setup_2.jpg> </a> <p class=caption>An electric kettle I use for the Brew</p><li class=gallery-item><a class=lightbox href=https://aron.petau.net/project/homebrew/beer_tap.jpg target=_blank> <img alt="A custom kegging system with a tap made from an upcycled table leg." src=https://aron.petau.net/project/homebrew/beer_tap.jpg> </a> <p class=caption>I made my own kegging system featuring a tap from an old table leg.</p><li class=gallery-item><a class=lightbox href=https://aron.petau.net/project/homebrew/beer_fermentation.jpg target=_blank> <img alt="A photo showing the fermentation process in action during beer brewing." src=https://aron.petau.net/project/homebrew/beer_fermentation.jpg> </a> <p class=caption>An active fermentation</p><li class=gallery-item><a class=lightbox href=https://aron.petau.net/project/homebrew/hops.jpg target=_blank> <img alt="Fresh hops growing in the garden, ready for experimentation in brewing." src=https://aron.petau.net/project/homebrew/hops.jpg> </a> <p class=caption>Hops growing in our garden, so I can experiment with fresh specialty hops</p><li class=gallery-item><a class=lightbox href=https://aron.petau.net/project/homebrew/beer_malt.jpg target=_blank> <img alt="The spent grain left over from brewing, which is perfect for composting, animal feed, or baking bread." src=https://aron.petau.net/project/homebrew/beer_malt.jpg> </a> <p class=caption>The leftover mass of spent grain. Animals love it, it's great for composting, but most importantly, it's great for baking bread!</p></ul></div></article><hr><nav id=post-nav><a class="post-nav-item post-nav-prev" href=https://aron.petau.net/project/iron-smelting/> <div class=nav-arrow>Previous</div> <span class=post-title>Iron Smelting</span> </a><a class="post-nav-item post-nav-next" href=https://aron.petau.net/project/ballpark/> <div class=nav-arrow>Next</div> <span class=post-title>Ballpark</span> </a></nav><span class=hidden id=copy-code-text>Copy Code</span><span class=hidden id=search-index>https://aron.petau.net/search_index.en.json</span><span class=hidden id=more-matches-text>$MATCHES more matches</span></main><footer id=site-footer><div class=carbonbadge id=wcb></div><script defer src=https://unpkg.com/website-carbon-badges@1.1.3/b.min.js></script><p><nav><ul><li><a href=https://aron.petau.net/project/>Projects</a><li><a href=https://aron.petau.net/pages/privacy/>Privacy</a><li><a class=external 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