Oxygen Flow Meter with 1/4" push-fit quick connector

Oxygen Flow Meter

This flow meter, with plexiglass as its main component, is designed to measure the amount of gas flowing through, perfect for easily controlling the amount of oxygen you add to your wort. It features high transparency for intuitive reading, light weight, easy installation, and high durability and long lifespan.

• 1/4" push-fit quick connector
• Scale 0.2 - 2 l/min

Wort Oxygenation

Oxygen provides the yeast with the necessary building blocks for cell membrane production and growth. Good oxygenation of the wort is crucial to avoid insufficient yeast cell growth, which can cause poor attenuation, uneven or slow fermentation, production of undesirable off-flavors and aromas, and result in yeast unsuitable for harvesting and reuse.

When oxygenating wort, it is important to understand how much oxygen should be supplied based on both beer type and batch size. A minimum level of 8-10 ppm (parts per million) dissolved oxygen in the wort is considered necessary before pitching the yeast, but some beer types, such as lagers and ales with high OG (original gravity), require even more oxygen for optimal fermentation. The more yeast you use per volume of wort, the higher the level of dissolved oxygen should be to support a healthy and efficient fermentation process.

Recommendations for oxygenating a 25-liter batch:

Oxygenation with pure O2 is usually done at a low pressure for good control of oxygen supply. The regulator can typically be set between 0.5 and 1 bar.

• Ales with OG up to 1.060:
• Recommended oxygen level: 8 ppm
• Supply: Pure oxygen at a flow rate of 1 liter per minute for approx. 80 seconds
• Ales above 1.060 OG and all lagers:
• Recommended oxygen level: 14 ppm
• Supply: Pure oxygen at a flow rate of 1 liter per minute for approx. 160 seconds

Using an oxygenation stone is necessary to create small enough bubbles for the oxygen to be absorbed, rather than just floating to the top of the wort. We recommend a 0.5 micron oxygenation stone. See related products below.

By following these guidelines, you ensure that the yeast receives sufficient oxygen for a healthy and efficient fermentation process. It is important to adjust the oxygenation time relative to the batch size to achieve the desired ppm levels of dissolved oxygen in the wort. Oxygen is important during the cell growth phase, in the very first hours after yeast pitch, and oxygen should not be added once fermentation has begun.