The Alfred Jørgensen Laboratory can supply regular quality-assured cultures of your own brewing yeast.

Trusted brewery partners since 1881. All brewery yeast cultures are fully traceable and tracked during shipping. Phytosanitary certificates and other forms of official documentation are also provided for all brewing yeast cultures produced by AJL.

Before dispatching a brewing yeast culture to you we carry out a range of quality assessments, including: checks for foreign contaminants such as wild yeasts and bacteria, checks on yeast colony morphology to assure culture purity, checks on yeast flocculation performance to assure fermentation consistency and checks on DNA composition to assure yeast culture identity.

The world's largest collection of industrial brewery yeasts - ale, lager, stout, wheat beer and a range of specialist cultures.

With 850 brewing yeast strains in our collection we have the yeast you need to bring a new lease of life to your beer. Revitalize your beer flavour. Super-charge your flavour stability. Invigorate your beer foam.

With three major industrial collections of yeast strains for beer under our control, with some yeast strain dating back to the 1890s, we have a brewing yeast to fit almost any need. No matter what type of beer you're producing - lager, ale, wheat beer, stout or something else - we can select a yeast strain to give you the beer  you want, made with the brewing equipment you have.

Our brewery yeast propagation service provides you with yeast when you need it. And it's guaranteed to perform.

We can propagate brewer's yeasts of all types in volumes which range from a few litres to a few hundred litres. Yeast is grown to order from your brewery yeast culture in our laboratories then shipped to your brewery by courier on ice.

We can propagate ale brewery yeast, stout yeast, lager yeast, wheat beer yeast, specialty (Saccharomycodes) yeasts for non-alcoholic and low-alcohol beers, and yeasts for bottle conditioning, including Brettanomyces strains.

All propagated yeast cultures are tested in accordance with our BS EN ISO 9001: 2008 certified quality management system. 

Brewers all over the world rely on our confidential safe deposit service to protect and preserve their brewery yeast strains.

Brewery yeast strains, selected for the flavours they give to your beer, and the way they behave in your brewing process, must be looked after if their natural tendency to change is to be countered. Preservation and maintenance of industrial brewing yeast strains is an important job. It needs a high degree of technical skill and the right equipment.

All brewery yeast cultures held by us are stored at  -196^oC in liquid nitrogen - one culture in the UK, a second culture in Denmark. All brewing yeast strains are held confidentially for the exclusive use of the brewery or brewery group that deposited them.