Lallemand Fermaid O – Organic Yeast Nutrient
Lallemand Fermaid O is a premium organic yeast nutrient designed to support healthy, reliable fermentation in mead, wine, cider and other alcoholic fermentations.
Made from 100% yeast autolysate, Fermaid O provides an organic source of nitrogen together with naturally occurring micronutrients to support yeast health and fermentation performance.
Unlike DAP-based nutrients, Fermaid O contains no added DAP or other inorganic nitrogen, making it an excellent choice when an organic yeast nutrient is preferred.
Why Choose Fermaid O?
- Premium organic yeast nutrient
- Made from 100% yeast autolysate
- Provides organic yeast-assimilable nitrogen
- No added DAP or inorganic nitrogen
- Supports healthy yeast growth and fermentation
- Helps promote reliable fermentation kinetics
- Provides naturally occurring micronutrients
- Suitable for mead, wine, cider and other alcoholic fermentations
- Genuine Lallemand product
- Convenient 100g pack
Fermaid O for Mead
Fermaid O is widely used as a yeast nutrient for mead, where honey can provide insufficient nutrients for healthy yeast fermentation.
Its organic nitrogen source makes it particularly useful in mead-making nutrient schedules, including staggered nutrient additions where nutrients are added at different stages of fermentation.
The exact amount and timing of Fermaid O should be determined by the mead recipe or nutrient schedule being followed.
Fermaid O for Wine & Cider
Fermaid O can also be used to support yeast during wine, cider and fruit fermentations.
Providing adequate yeast nutrition can help maintain healthy fermentation activity, particularly when the must or juice has limited naturally available nitrogen.
Fermaid O supplies organic nitrogen in the form of amino acids and peptides derived from yeast.
Fermaid O Dosage
Recommended dosage: 40g/hL based on final volume.
This is equivalent to approximately:
| Batch Size | Fermaid O |
|---|---|
| 5L | 2g |
| 10L | 4g |
| 20L | 8g |
| 25L | 10g |
| 50L | 20g |
| 100L | 40g |
Nutrient requirements can vary depending on the fermentation, yeast strain, starting nutrient levels and recipe being followed.
When using Fermaid O as part of a specific mead or wine nutrient schedule, follow the dosage and timing specified by that protocol.
How to Add Fermaid O
Re-suspend Fermaid O in approximately 10 times its weight in water.
Mix thoroughly until well dispersed and add immediately to the fermentation.
For staggered nutrient additions, divide the required amount according to the nutrient schedule being followed.
Fermaid O vs DAP
The major difference between Fermaid O and DAP is the source of nitrogen supplied to the yeast.
Fermaid O provides organic nitrogen derived from yeast.
DAP (Diammonium Phosphate) provides inorganic nitrogen.
Fermaid O contains no added DAP, making it suitable for fermentation programs where an organic source of yeast nutrition is preferred.
Fermaid O vs Fermaid K
Although both products are designed to support fermentation, Fermaid O and Fermaid K are different yeast nutrients.
Fermaid O provides an organic nitrogen source derived from yeast and contains no added DAP.
Always use the nutrient specified by your recipe or fermentation protocol rather than assuming Fermaid O and Fermaid K can be substituted at the same dosage.
Product Specifications
| Specification | Details |
|---|---|
| Product | Fermaid O |
| Brand | Lallemand |
| Type | Organic Yeast Nutrient |
| Pack Size | 100g |
| Composition | 100% Yeast Autolysate |
| Nitrogen Source | Organic / Yeast Derived |
| Added DAP | None |
| Recommended Dosage | 40g/hL |
| 20L Dosage | Approx. 8g |
| Suitable For | Mead, Wine, Cider & Alcoholic Fermentation |
Frequently Asked Questions
What is Fermaid O?
Fermaid O is an organic yeast nutrient manufactured by Lallemand. It is made from 100% yeast autolysate and provides organic nitrogen and naturally occurring micronutrients to support healthy fermentation.
What is Fermaid O used for?
Fermaid O is used to provide additional nutrition to yeast during fermentation. It is commonly used for mead, wine, cider and other alcoholic fermentations.
Is Fermaid O good for mead?
Yes. Fermaid O is commonly used as a yeast nutrient for mead and can be incorporated into staggered nutrient addition schedules.
How much Fermaid O should I use?
The recommended dosage is 40g/hL, equivalent to approximately 8g for a 20L batch.
Nutrient requirements can vary depending on the fermentation, so follow the dosage and timing specified by the recipe or nutrient schedule where applicable.
How do I add Fermaid O?
Re-suspend Fermaid O in approximately 10 times its weight in water, mix thoroughly until dispersed and add immediately to the fermentation.
Does Fermaid O contain DAP?
No. Fermaid O contains no added DAP or other inorganic nitrogen. Its nitrogen source is derived from yeast.
Is Fermaid O organic?
Fermaid O provides an organic source of nitrogen derived from yeast autolysate. In this context, “organic” refers to the form and source of nitrogen used for yeast nutrition.
What is the difference between Fermaid O and DAP?
Fermaid O provides organic yeast-derived nitrogen, while DAP provides inorganic nitrogen in the form of diammonium phosphate.
What is the difference between Fermaid O and Fermaid K?
Fermaid O is based on organic yeast-derived nitrogen and contains no added DAP. Fermaid K has a different nutrient formulation.
Use the product and dosage recommended for the fermentation protocol being followed.
Where can I buy Fermaid O in Australia?
Border Brewing Supplies stocks Lallemand Fermaid O Yeast Nutrient 100g with Australia-wide shipping.
Click & Collect is also available from our Tweed Heads South store, convenient for customers across the Gold Coast, Tweed Heads and Northern NSW.
Why Buy from Border Brewing?
- Genuine Lallemand Fermaid O
- Competitive online pricing
- Convenient 100g pack
- Australia-wide shipping
- Click & Collect from Tweed Heads South
- Mead, wine and fermentation supplies
- Convenient for Gold Coast & Northern NSW customers
- Family-owned Australian business
