2pcs 0.5 Micron Stainless Steel Aeration & Carbonating Stone Set

2-Pack Stainless Steel Aeration & Carbonating Diffusion Stones – 0.5 Micron, 1/4" Barb

Elevate your home brewing and winemaking game with these premium 0.5 micron diffusion stones. Featuring millions of ultra-fine pores, these aeration stones rapidly oxygenate wort and efficiently carbonate beer, soda water, and wine — delivering consistent, professional-quality results every time. Made from durable food-grade stainless steel, each stone is built to withstand high temperatures and the rigors of daily brewing use.

Key Features

• Ultra-Fine 0.5 Micron Pores: Millions of tiny pores generate a dense cloud of micro-bubbles for fast, thorough oxygenation and carbonation.
• 1/4" Barb Connection: Easy-connect/disconnect barb fitting makes setup and cleanup a breeze — no tools required.
• Stainless Steel Construction: Stable performance under high heat, corrosion-resistant, and built for long-term brewing use.
• Easy to Clean: Simply boil the stone in water for 1–3 minutes to restore full performance and keep pores clear.
• Compact & Practical: Approx. 48mm (1.9in) long × 13mm (0.5in) diameter — perfectly sized for homebrew setups of all scales.

Specifications

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

Care & Usage Tips

To maintain peak performance, avoid touching the stone body with bare hands — natural skin oils can clog the micro-pores and reduce effectiveness. Clean regularly by boiling in water for 1–3 minutes. Store in a clean, dry place between uses.

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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 introduce oxygen into wort before fermentation, or to carbonate beer, soda water, and wine. The ultra-fine 0.5 micron pores produce millions of tiny micro-bubbles that dissolve quickly and efficiently into your liquid, promoting healthy yeast activity and consistent carbonation.

Q: How do I connect the aeration stone to my brewing setup?

A: Each stone features a standard 1/4 inch outer diameter barb fitting that easily connects to most standard tubing used in homebrewing. Simply push the tubing onto the barb for a secure, leak-free connection — no tools or clamps needed. It disconnects just as easily for cleaning and storage.

Q: How do I clean and maintain my stainless steel diffusion stone?

A: To clean your diffusion stone, boil it in clean water for 1 to 3 minutes. This process helps clear any residue from the micro-pores without damaging the stone. Importantly, avoid handling the stone body with bare hands, as oils from your skin can block the tiny pores and reduce oxygenation or carbonation efficiency over time.

Q: Are these diffusion stones safe for use with food and beverages?

A: Yes. These aeration stones are crafted from food-grade stainless steel, making them safe for direct contact with beer, wine, soda water, and other brewing liquids. Stainless steel is also highly resistant to corrosion and flavour transfer, ensuring your brew stays pure and unaffected.

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.