North Mountain Supply Fermaid O yeast nutrient in a 1 lb jar, formulated as an organic nitrogen source to nourish yeast, improve aromas and give better control over fermentation. It helps lower peak fermentation temperatures, improves late stage fermentation kinetics and reduces sulfur off odors such as H2S in beer and wine.
North Mountain Supply Fermaid O is a specialized yeast nutrient designed for homebrewers and winemakers who want clean, reliable fermentations and consistent results. Supplied in a 1 lb plastic jar, it provides enough nutrient for multiple batches and is well suited for anyone using Fermaid O as part of a regular brewing or winemaking routine.
Fermaid O delivers organic nitrogen and other key nutrients that support yeast health throughout fermentation. By feeding yeast in a balanced way, it helps them work more efficiently, which can lead to:
Improved aroma and flavor expression
More predictable and complete fermentations
Reduced risk of sluggish or stuck ferments
One of the main advantages of Fermaid O is its effect on fermentation behavior. When used correctly, it can help:
Lower peak fermentation temperatures
Improve fermentation kinetics, especially toward the end of fermentation
Reduce sulfur off odors, including hydrogen sulfide (H2S)
These benefits make it especially valuable in musts and worts that are higher gravity, nutrient poor or otherwise stressful for yeast.
Fermaid O is compatible with a wide range of beer and wine styles, from delicate white wines and fruit wines to robust reds, ciders and strong ales. It also works well in staggered nutrient addition schedules or other nutrient management strategies designed to keep yeast healthy from pitch to final gravity.
For best results, suspend Fermaid O in water or juice or must and mix thoroughly before adding it to your ferment. This is particularly important when adding nutrient during active fermentation, as it helps prevent sudden CO2 release and potential foaming or overflow in the fermenter. Always follow dosage recommendations appropriate to your batch size, style and process, and adjust based on your own results and recipe needs.
Key features:
Fermaid O yeast nutrient from North Mountain Supply
1 lb plastic jar suitable for frequent or larger scale homebrewing and winemaking
Organic nitrogen source that nourishes yeast and supports healthy fermentation
Helps lower peak fermentation temperatures
Improves fermentation kinetics, particularly in later stages
Reduces sulfur off odors such as H2S when used properly
Suitable for a wide range of beer, wine and cider styles
Suggested uses:
Supporting primary fermentation in grape wines, fruit wines and ciders
Boosting yeast health in higher gravity beers and wines
Reducing the risk of sluggish or stuck fermentations in low nutrient musts or worts
Improving aroma and flavor outcomes by promoting cleaner, more controlled ferments
Usage tip:
Suspend Fermaid O in a small amount of water or juice or must and mix well before adding, especially during active fermentation, to minimize foaming and avoid overflow while the yeast are releasing CO2.
