BioBrew is a fresh product containing very high numbers of live, active probiotic microbes and the beneficial metabolites (butyric acid, acetic acid, lactic acid, etc.) these microbes produce. Unlike freeze-dried products, our microbes get to work from the moment they are administered to your animals. Our microbes are selected to survive the challenges of the ruminant digestive system, including stomach acid and bile salts.

Our products are regularly tested for viability and other quality characteristics by Lincoln University.

We recommend using BioBrew within two weeks of opening and two months of delivery.

Testing performed by Lincoln University indicates the microbial numbers in BioBrew are stable for over eight weeks.

Keep containers tightly capped and out of direct sunlight. Shed conditions are appropriate for storage.

The accumulated material often found at the bottom of containers is rich in microbes and should not be wasted! Shake container before use.

Rinse containers and provide rinse water to stock.

Water, feed-grade molasses (conventional product only), organic raw sugar, GRAS (Generally Regarded As Safe) microbial culture that includes lactic acid bacteria and yeasts, kelp and either dolomite or lime.

The microbes in BioBrew convert the sugars we provide into more live microbes and the important and beneficial metabolites, such as organic acids, that the microbes produce.

BioBrew collects the empty farm-gate delivery containers for cleaning and reuse. This is environmentally responsible and results in considerable savings for farmers.

Our cleaning program is the reason we use the ear tags as labels; paper labels would be destroyed by our cleaning process.

Email us at or call (0508) BIOBREW you can also order in 5l,10l and 20l boxes from our shop icon at the top of the page.

In Waikato, Bay of Plenty, Canterbury, Otago and Southland we currently offer monthly direct delivery to regular users of BioBrew in 10 and 20 litre containers at no additional cost. Minimum delivery is 60l (please call if you require less). We will be adding to our delivery areas soon. In Taranaki you can pick up BioBrew from WonderMinerals in Eltham.

One-off orders and orders from regions outside of our delivery areas are handled by conventional shipping methods.

BioBrew is optimised for use in ruminant production animals but is safe to use in all species of production animals at all stages of development.

BioBrew may be added to feed, stock water, or direct drenched.

BioBrew should be introduced to feed just before it is distributed to stock and should not be allowed to dry out before it is ingested.

BioBrew may be introduced to stock water with an in-line dispenser such as a dosatron, via a trough dispenser, or simply poured into troughs as stock move into a new paddock.

BioBrew may be added to milk/milk substitute for young animals.

Many farmers use BioBrew in combination with inputs such as magnesium chloride or trace elements that are somewhat harsh for microbes and still obtain very good results.

We recommend that BioBrew be added to the dosatron barrel last, i.e., at maximum dilution, to minimize the effect of other additives.

Some farmers have adopted the practice of filling the dosatron barrel in the morning with magnesium chloride and other inputs and waiting until the afternoon to add BioBrew and top up the barrel with water to further improve the dilution effect. Some farmers have also chosen alternative inputs such as magnesium sulphate that are somewhat gentler on microbial life.

BioBrew is completely non-toxic and causes no withholding for milk or meat. Doses far in excess of recommended doses will not cause any harmful effects.