2-Pack 0.5 Micron Stainless Steel Aeration & Carbonation Stone

2-Pack Stainless Steel Aeration & Carbonation Diffusion Stones

Elevate your home brewing game with these precision-engineered 0.5 micron diffusion stones. Whether you're oxygenating wort before fermentation or carbonating beer, cider, or sparkling water, these stainless steel aeration stones deliver millions of ultra-fine bubbles for fast, consistent results every brew day.

Key Features

• 0.5 Micron Pore Size: Millions of micro-pores produce ultra-fine bubbles that quickly and evenly oxygenate wort or carbonate your beverages.
• Food-Grade Stainless Steel: Solid stainless steel construction ensures stable performance under high temperatures, resists corrosion, and stands up to repeated brewing sessions.
• 1/4-Inch Barb Fitting: The standard 1/4" outer diameter barb connects and disconnects effortlessly to airline tubing and CO₂/oxygen equipment — no adapters needed.
• Easy to Clean: Simply boil the diffusion stone in water for 1–3 minutes to clear any buildup and restore full flow performance.
• Versatile Use: Perfect for beer brewing, wine making, mead, cider, soda water carbonation, and aquarium oxygenation.
• Pack of 2: Great value — keep one in active use and one as a spare, or use both simultaneously in larger batch brewing setups.

Specifications

• Material: Stainless Steel
• Color: Silver
• Pore Size: 0.5 Micron
• Connection: 1/4 Inch Outer Diameter Barb
• Length: Approx. 48mm / 1.9 in
• Diameter: Approx. 13mm / 0.5 in
• Weight: Approx. 34g / 1.2 oz (per stone)
• Package Includes: 2 × Diffusion Stones
• Made in Mainland China

Pro Tips for Best Results

• Avoid touching the body of the diffusion stone with bare hands — natural oils from your skin can block the micro-pores and reduce performance.
• Boil in clean water for 1–3 minutes after each use to keep pores clear and extend the life of your stone.
• Sanitize before each use as part of your regular brewing routine.

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Frequently Asked Questions

Q: What is a 0.5 micron aeration stone used for in home brewing?

A: A 0.5 micron aeration stone is used to infuse extremely fine oxygen bubbles into wort before fermentation, which promotes healthy yeast activity. It can also be used with CO₂ to carbonate beer, cider, soda water, and other beverages quickly and evenly.

Q: How do I connect this carbonation stone to my brewing setup?

A: This diffusion stone features a standard 1/4-inch outer diameter barb fitting that connects directly to most standard airline tubing used with oxygen tanks or CO₂ systems. Simply push the tubing onto the barb for a secure, airtight connection — no special tools or adapters required.

Q: How do I clean the stainless steel diffusion stone?

A: To clean your diffusion stone, boil it in plain water for 1 to 3 minutes. This process helps clear any residue or buildup from the micro-pores. Always handle the stone by its barb fitting rather than the stone body — skin oils can clog the tiny pores and reduce oxygenation or carbonation efficiency.

Q: Can I use this aeration stone for both oxygenating wort and carbonating beverages?

A: Yes! This versatile diffusion stone works equally well for wort oxygenation (connected to an oxygen source pre-fermentation) and force carbonation of finished beer, cider, or sparkling water (connected to a CO₂ system). The 0.5 micron pore size ensures ultra-fine bubble dispersion in both applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.