NutriBrew

Fresh cultures for home fermentation

NutriBrew supplies live milk kefir and water kefir grains grown in Limerick and ships to customers across Ireland and Northern Ireland. Its milk-kefir grains are intended for fermenting dairy milk into a creamy, tangy drink; water-kefir grains use sugar water and can be flavoured after straining. The shop sells several pack sizes and starter kits, with instructions and support for getting a first batch underway. The two cultures are different and are not interchangeable; each product page identifies its ingredients and brewing use.

Kombucha, yogurt and sourdough starters

The catalogue extends beyond kefir to include kombucha SCOBYs, kombucha starter kits and a home-brew heat pad. Yogurt starters cover Greek, Bulgarian, Skyr, Viili and Piima styles, including a bundled starter selection. Sourdough cultures include Alaskan, rye, San Francisco, white, Colorado, brown and gluten-free varieties, with activation instructions and recipes. Customers can browse the product group that matches the food they want to make and read the linked guides before choosing a culture.

How reusable kefir grains work

Kefir grains are living communities of bacteria and yeast held in a natural gel-like structure, not cereal grains. After fermentation, the culture is strained from the drink and fed again with fresh milk or sugar water, allowing repeated batches when it is maintained correctly. NutriBrew distinguishes milk grains, which are soft and white, from translucent water grains. Its guides discuss typical fermentation times—around a day for milk kefir and roughly one to two days for water kefir—but temperature, grain quantity and activity affect the process. The company advises following the instructions supplied with each culture.

Ordering, settling and customer help

The store offers fresh, live grains rather than dehydrated cultures. NutriBrew notes that a culture may need several regular batches to settle into a new milk or water supply and room temperature after delivery. Its site provides how-to pages, second-fermentation guidance, recipes, FAQs and instructions for storing cultures during a pause. Customers who need help can contact the team to discuss ingredients, grain quantities, temperature and fermentation time. The shop also offers a daily kefir concentrate, ginger water crystals and freeze-dried milk kefir among its related products.

Limerick company and contact

NutriBrew identifies itself as a Limerick-based business supplying cultures since 2019. It describes its water kefir grains as having been used under its former trading name, Live Ferments, in the Kefir4All citizen-science project; the page links to the published 2024 methods and its account of supplying cultures. The business lists info@kefirgrains.ie for enquiries. Its online catalogue shows pack sizes, product prices and shipping information for orders placed through the shop.