--- product_id: 52144612 title: "CellarScience - AD345B Fermaid K (80 g)" brand: "cellarscience" price: "£21.52" currency: GBP in_stock: true category: "Cellar Science" url: https://www.desertcart.co.uk/products/52144612-cellarscience-ad345b-fermaid-k-80-g store_origin: GB region: United Kingdom --- # Timed addition at 1/3 sugar depletion Complex nutrient blend with 7+ key components 1g per gallon precise dosing CellarScience - AD345B Fermaid K (80 g) **Brand:** cellarscience **Price:** £21.52 **Availability:** ✅ In Stock ## Summary > 🍷 Elevate your craft fermentation game with precision nutrition! ## Quick Answers - **What is this?** CellarScience - AD345B Fermaid K (80 g) by cellarscience - **How much does it cost?** £21.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/52144612-cellarscience-ad345b-fermaid-k-80-g) ## Best For - cellarscience enthusiasts ## Why This Product - Trusted cellarscience brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Certified Organic Quality:** Craft your brews with confidence using a premium, organic-certified yeast nutrient. - • **Dual-Phase Nutrient Boost:** Add at fermentation start and again at 1/3 sugar depletion to maximize yeast vitality and flavor profile. - • **Foam-Controlled Hydration:** Hydrate in distilled water during active fermentation to prevent CO2 over-release and messy foaming. - • **Comprehensive Nutrient Complex:** Packed with ammonia salts, amino acids, sterols, and essential vitamins for robust yeast health. - • **Precision Dosing for Perfect Fermentation:** Exactly 1 gram per gallon ensures optimal yeast performance without guesswork. ## Overview Fermaid K is an 80g organic-certified yeast nutrient powder designed for professional and home brewers. It delivers a scientifically balanced blend of ammonia salts, amino acids, sterols, fatty acids, and essential vitamins to support vigorous yeast activity. Applied at 1 gram per gallon, it’s added twice during fermentation—initially and at one-third sugar depletion—to ensure optimal fermentation health and flavor development. Compatible with Go-Ferm for a complete yeast nutrition regimen, Fermaid K helps prevent stuck fermentations and enhances the complexity of your brews. ## Description Fermaid K is a blended yeast nutrient that supplies ammonia salts (DAP), free amino acids (organic nitrogen from deactivated yeast), sterols, unsaturated fatty acids, key nutrients (magnesium sulfate, thiamin, folic acid, niacin, biotin, calcium pantothenate) and inactive yeast. Add to must at the beginning of fermentation, and again at 1/3 sugar depletion for high nutrient requirement yeasts. Add at the rate of 1 grams per gallon. Fermaid K can be added directly to must, or if the fermentation is active, hydrate in water to avoid CO2 release and excessive foaming. Usage: 1 gram per gallon. ## Features - Complex yeast nutrient - 1 gram per gallon of must or juice - 80 g (2.8 oz) - Rehydrate in distilled water and add after 1/3 sugar depletion - Use with Go-Ferm for a complete yeast nutrition schedule ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B074DB7H5Z | | Best Sellers Rank | #225,930 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #665 in Beer Brewing Ingredients | | Brand Name | CellarScience | | Container Type | Canister | | Customer Reviews | 4.7 4.7 out of 5 stars (269) | | Global Trade Identification Number | 00843200100190 | | Item Form | Powder | | Item Weight | 80 g | | Manufacturer | CellarScience | | Manufacturer Part Number | AD345B | | Material Features | Certified Organic | | Model Number | AD345B | | Number of Items | 1 | | UPC | 843200100190 | | Unit Count | 2.8 Ounce | ## Product Details - **Brand:** CellarScience - **Global Trade Identification Number:** 00843200100190 - **Item Form:** Powder - **Item Weight:** 80 g - **Manufacturer:** CellarScience - **Material Feature:** Certified Organic - **Number of Items:** 1 - **Package Information:** Canister - **UPC:** 843200100190 - **Unit Count:** 2.8 Ounce ## Images ![CellarScience - AD345B Fermaid K (80 g) - Image 1](https://m.media-amazon.com/images/I/41uabDBSxVL.jpg) ## Questions & Answers **Q: The description mentions organic nitrogen, does this mean this product could be called the 'O' version?** A: Fermaid O vs. Fermaid K has replaced the inorganic DAP (Diamonium phosphate) with an organic source. The manufacturer suggests it will result in lower heat output from the yeast, and lower levels of negative sulfur compounds. Straight DAP is like feeding your wine a "twinky" rather than a balanced diet. The organic compounds are consumed thus the "O" version you mention. I use it in whites, reds and fruits wines. Make the yeast happy and you'll make good wine. **Q: This works for meads? I make mead for celiac people, could i use this product?** A: Absolutely works for meades. In fact the staggered dose is the recommended method. **Q: Is this gluten free?** A: According to the manufacturer the product is Gluten free. **Q: How is this packaged? Small bag? small bottle?** A: Small bag, that you need to repackage into something after opening. i just used this and blended with go-ferm to make a blend ## Frequently Bought Together - CellarScience - AD345B Fermaid K (80 g) - CellarScience-AD343A Go-Ferm Protect Evolution - 100 g - CellarScience - AD332B Fermaid O (120 g), 4.2 Ounce (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/52144612-cellarscience-ad345b-fermaid-k-80-g](https://www.desertcart.co.uk/products/52144612-cellarscience-ad345b-fermaid-k-80-g) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-09-07*