{"id":3440,"date":"2026-10-09T11:46:04","date_gmt":"2026-10-09T03:46:04","guid":{"rendered":"http:\/\/www.leddpssgdco.com\/blog\/?p=3440"},"modified":"2026-10-09T11:46:04","modified_gmt":"2026-10-09T03:46:04","slug":"what-materials-are-used-in-making-craft-brewing-equipment-4790-cb2b46","status":"publish","type":"post","link":"http:\/\/www.leddpssgdco.com\/blog\/2026\/10\/09\/what-materials-are-used-in-making-craft-brewing-equipment-4790-cb2b46\/","title":{"rendered":"What materials are used in making craft brewing equipment?"},"content":{"rendered":"

Hey there, let\u2019s cut to the chase\u2014if you\u2019re diving into craft brewing, or already knee-deep in it, you know the equipment doesn\u2019t just \u201cmake the beer.\u201d It\u2019s the backbone of every good batch, right? As a craft brewing equipment supplier, I\u2019ve spent years fielding questions from homebrewers scaling up, nano-brewers getting their first system off the ground, and even established brewers tweaking their setup to nail that next iconic recipe. One question I get more than any other is: \u201cWhat materials are actually used for this stuff?\u201d Craft Brewing Equipment<\/a><\/p>\n

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It\u2019s not like you can just grab any metal or plastic and call it a day\u2014there\u2019s a science to this, even if it doesn\u2019t feel like it. Bad material choices mean off-flavors, contamination, extra cleanup work, and even safety risks. Let\u2019s break down the real, go-to materials we use day in and day out, why we swear by them, and when (if ever) you\u2019d pick something else for your rig.<\/p>\n

First up, the big one everyone already expects, but let\u2019s get specific: 304 & 316 Stainless Steel. This isn\u2019t your regular stuff you have in a random kitchen pot. Wait\u2014actually, a lot of homebrewers do start with kitchen stainless, but that\u2019s usually lower grade, and it shows. Let\u2019s start with 304, the workhorse of craft brewing. Why? It\u2019s got the right mix of chromium and nickel to resist rust, hold up to constant contact with water, malt, hops, and that slightly acidic beer during fermentation. It\u2019s non-reactive, so it won\u2019t leach weird metallic tastes into your wort (that\u2019s the unfermented beer, for new folks) or finished brew. Cleanup is a breeze\u2014no weird residue sticking around if you\u2019re using standard brewery cleaners (we\u2019re talking alkaline cleaners for heavy grime, acid cleaners for mineral buildup, stuff like that).<\/p>\n

But why 316? Oh right, that\u2019s the heavy-duty cousin. 316 has molybdenum added to the mix, and that changes everything. When would you need it? If you\u2019re handling really high-gravity worts, or working with things like lactic acid, or even if your local water is super high in chlorine or other chemicals that can eat through 304 over time. We use 316 for anything that\u2019s going to be in contact with the beer for extended periods\u2014like fermenters, brite tanks (those are the tanks where the beer gets carbonated before packaging), and even some parts of our hot liquor tanks if a brewer is using extra aggressive sanitizers. It\u2019s more expensive, sure, but if you\u2019re looking to build a system that\u2019ll last 10+ years without corroding, it\u2019s worth every extra penny.<\/p>\n

I\u2019ve seen too many brewers cut corners here, buying cheap 304 knockoffs that end up pitting after a year. Pits trap gunk, you can\u2019t clean them properly, and before you know it, your beer has that weird metallic aftertaste that makes customers go \u201cnah.\u201d So trust me on this\u2014stainless steel isn\u2019t just \u201cstainless.\u201d Grade matters, and we never skimp on it for the parts that touch your beer.<\/p>\n

Next, something people rarely ask about but should: Copper. Wait, copper? Isn\u2019t that old-school? Yeah, it\u2019s traditional, but there\u2019s a reason brewers have been using it for centuries, and we still spec it for specific parts of our systems. Copper is amazing at heat transfer. If you\u2019ve ever had a boil kettle that heats evenly and fast, chances are it\u2019s got a copper bottom. It\u2019s also great at removing unwanted sulfur compounds from the boil\u2014those are the ones that give beer a skunky, rotten-egg taste, yuck. But here\u2019s the catch with copper: it\u2019s reactive. If copper is left in contact with beer (which is acidic) too long, it can leach copper ions. That\u2019s not good for you, and it\u2019ll ruin the beer\u2019s flavor. So we only use copper for parts that are designed to be in contact with the boil but get separated quickly\u2014like the kettle bottoms, or the distillation sections if you\u2019re doing high ABV brews. We line those copper parts with 304 stainless? Or make sure they\u2019re not sitting in wort post-boil. No exceptions. I once had a brewer bring us a setup with a copper fermenter he picked up secondhand\u2014we tested it, and the copper levels were way too high for safe beer. Had to tell him to scrap that, and he ended up thanking us a few months later when his new 304 fermenter was working perfectly.<\/p>\n

Now, let\u2019s talk about the parts that aren\u2019t big tanks or kettles\u2014like valves, fittings, hoses. This is where a lot of folks mess up, using random hardware store parts that aren\u2019t designed for brewery use. Let\u2019s start with valves. You want either stainless steel valves (304 or 316, same rule as before) or maybe food-grade PVC? Wait, no\u2014PVC is a hard pass for parts that touch hot liquids. The chemicals in PVC can leach when heated, and that\u2019s a no-go. Most valves we use are either tri-clamp stainless steel (tri-clamp is the easy-to-connect, quick-disconnect style that\u2019s standard in craft breweries now, makes cleaning way faster) or maybe brass valves if they\u2019re not touching the beer directly\u2014like drain valves on the outside of a tank, not the ones that move wort.<\/p>\n

Hoses are another big one. You can\u2019t use regular garden hose here\u2014those have plasticizers that leak into beer. We use EPDM (ethylene propylene diene monomer) hoses for most brewery applications, especially for cold transfers or rinsing lines. EPDM is heat-resistant, holds up to sanitizers, and is food-safe. If you\u2019re moving hot wort (up to 170-212\u00b0F), you need food-grade silicone hoses. Silicone can handle higher temps, doesn\u2019t leach, and is flexible enough to route around tanks without kinking. We always make sure every hose we supply is marked \u201cfood-safe\u201d and meets FDA standards\u2014no exceptions. I\u2019ve had a brewer call us panicking because he used a cheap hose from a homebrew shop for his first batch, and it left a weird rubbery taste. Switched to our EPDM hoses, problem gone.<\/p>\n

What about the stuff that\u2019s not direct contact, but still important? Like gaskets, seals, maybe even the insulation on tanks? Gaskets for tri-clamp connections\u2014you need food-grade gaskets, usually made of silicone or EPDM. Regular rubber gaskets have oils that can transfer to beer when you\u2019re heating things up. Seals on fermenter lids? Same deal\u2014silicone, not cheap stuff. And insulation? Most brewers use closed-cell polyurethane foam insulation for tank jackets. It\u2019s lightweight, doesn\u2019t absorb water (which would make it moldy, gross), and keeps the fermenter at a consistent temp, which is non-negotiable for good fermentation. If you use regular fiberglass insulation, it can shed fibers into the area around the tank, and if it gets wet, it\u2019s a breeding ground for bacteria. We always include proper insulation with our tanks, no cutting corners here.<\/p>\n

Wait, let\u2019s get to the one material that a lot of new brewers ask about: plastic. When is plastic okay? Only if it\u2019s food-grade, and never for things that touch hot wort or finished beer. We use food-grade polyethylene (HDPE) for things like hot liquor tank lids, or small transfer containers for sanitizer. Even then, we only use it for parts that aren\u2019t in constant contact with the beer. I see some people using plastic fermenters, and hey, if you\u2019re a homebrewer doing 5-gallon batches, that\u2019s fine for small scale. But if you\u2019re scaling up to 10-barrel or more, plastic just doesn\u2019t hold up. It scratches easily, scratches trap bacteria, and over time, the plastic can get stained and hard to clean. For commercial systems, plastic is a hard no on any part that touches the beer long-term.<\/p>\n

Let\u2019s address a common myth: aluminum. A lot of old school homebrewers swear by aluminum kettles, but here\u2019s the thing\u2014aluminum reacts with acidic liquids. Beer is acidic, right? PH is usually around 4-5, and aluminum will leach into the wort, giving it a metallic, tinny taste. It\u2019s also softer, so it scratches easy, and those scratches are impossible to clean completely. We stopped using aluminum for any brewery equipment years ago, even for small homebrew setups. Way too many complaints about off-flavors from old aluminum kettles.<\/p>\n

Now, let\u2019s talk about why this all matters for you, whether you\u2019re a nano-brewer just starting out or a established spot looking to upgrade. The materials don\u2019t just affect flavor\u2014they affect your bottom line. Cheaper materials might save you a few bucks upfront, but if your system corroded in a year, or your beer tastes off so you\u2019re losing customers, that\u2019s way more expensive. We build every part of our systems with longevity and beer quality in mind. All our stainless steel parts are 304 or 316, we use food-grade hoses, gaskets, and valves, and we only spec materials that won\u2019t interfere with your process.<\/p>\n

At the end of the day, craft brewing is about making great beer, and great beer starts with great equipment. The materials you choose aren\u2019t just specs on a page\u2014they\u2019re the difference between a batch that\u2019s a hit and one that gets dumped.<\/p>\n

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If you\u2019re putting together a new system, upgrading an old one, or just have questions about what materials are right for your specific brews\u2014hit us up. We\u2019ve been in this game long enough to know what works, what doesn\u2019t, and can help you pick the right materials for your budget and your recipes. No pushy sales stuff, just real talk from a team that lives and breathes craft brewing equipment.<\/p>\n

Auxiliary System<\/a> References:<\/p>\n