13.5 Gallon Conical Fermenter Open Top Upgrade
13.5 Gallon Conical Fermenter Open Top Upgrade
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Product Add-Ons
8g-101g Fermenter Tri-Clamp Hardware Kit
1.5" Tri-Clamp SS304 Sight Glass Hardware Kit
1/2" NPT Ball Lock Post Pressure Transfer Kit
EZ Seal Weld-Less Bulkhead
SS Coiled Temperature Control Lid for 13.5g Fermenters
Thermowell Port Kit (30mm)
Thermowell Port Kit (100mm)
MiniBrew™ 13.5G Open Top Conical Fermenter
Open-access fermentation for easy cleaning + additions 🧼🍻
Food-Grade HDPE • 60º Conical • Includes Seated Lid + Buna-N Gasket
This is a different tank — not a conversion kit ✅
(Sold as an Upgrade Kit to the traditional style 13.5g)
(Must be purchased in addition to the Standard 13.5g Conical Fermenter)
The 13.5G Open Top is a separate fermenter body that’s molded as an open-top design. You cannot convert a closed-top 13.5G into this model by swapping lids.
We list it as an “upgrade option” to keep the product page clean—but what you’re purchasing here is an entire open-top fermenter configuration.
Why Choose Open Top?
Open-top fermentation is all about access and simplicity:
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Fast cleaning with wide open access
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Easy additions (dry hops, fruit, oak, spices, nutrients)
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Hands-on fermentation workflow (great for frequent access)
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Same conical performance with a 60º cone for trub/yeast collection
What’s Included ✅
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(1) MiniBrew™ 13.5G Open Top HDPE Conical Fermenter Body (open-top molded design)
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(1) Seated/removable lid
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(1) Food-grade Buna-N gasket
Includes the same standard hardware setup as the 13.5G base model:
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Racking port: 1/2" EZ Seal + 1/2" SS hex nipple + 1/2" SS full-port ball valve
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Threaded racking port filter (included)
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Dump port: 1" EZ Seal + 1" SS nipple + 1" SS full-port ball valve
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Cork + airlock included
Important Note About CO₂ Transfers ⚠️
This open-top configuration is not designed for CO₂-pressurized / closed transfers. If you want CO₂-assisted transfers into purged kegs, choose the standard closed-top 13.5G model instead.
Compatibility
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Designed as an Open Top version of the MiniBrew™ 13.5G conical system
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Hardware/port workflow matches the 13.5G platform for familiarity and upgrades
Want the easiest access possible? This is it. ✅
If your brewing style benefits from frequent access for cleaning and additions, the MiniBrew™ 13.5G Open Top is the most hands-on, user-friendly way to run a bigger conical—without the friction of a closed-top workflow.
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Professional Precision for the Serious Homebrewer.
Stop settling for "good enough" beer. Every world-class brewery starts with the same secret: a 60-degree conical design. At MiniBrew™, we’ve taken that professional-grade geometry and scaled it perfectly for your home brewery.
Why MiniBrew™?
Built for a Lifetime
Built for a Lifetime
Forget brittle glass carboys or flimsy buckets. MiniBrew™ tanks are molded from high-density, food-grade HDPE. They are UV-protected, impact-resistant, and lightweight. This is the last fermenter you’ll ever need to buy.
Modular by Design
Modular by Design
Start simple and grow as your passion does. Every MiniBrew™ is a "Forever System," designed to be upgraded with:
- Stainless Steel Cooling Coils for perfect temperature control.
- Tri-Clamp Fittings for a pro-level sanitary workflow.
- Sight Glass Kits for instant volume visibility.
One-Tank Mastery
One-Tank Mastery
Say goodbye to the "secondary" struggle. With our dual-port system, you can dump trub and harvest yeast from the bottom valve while your beer stays protected in one vessel. Less oxygen, less risk of infection, and a lot less cleaning.
