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Acid Buff is a rumen buffer often used for cattle. It’s a carbonated alga lime, consisting mainly of calcium and magnesium. Because of its honeycomb structure, Acid Buff absorbs the calcium well. On top of that, the high solubility of magnesium almost totally complete in Acid Buff, making it unique. Cattle experience a great deal of advantage by using Acid Buff. Not only does it optimize the rumen functioning, it reduces the chance of acidosis and increases the production. Acid Buff works twice as long and better than sodium bicarbonate. It also contributes to an optimal use of minerals in pigs and poultry, thereby improving the health and performances of the animals.

Origin and control

In the early years, Acid Buff rumen buffer was gathered off the Irish coast. In the last few years, the demand for Acid Buff has risen 20 to 25 pro cent. For that reason, at the end of 2009 the production level was increased, and the gathering and preparation were moved to Iceland. In both Iceland and Ireland, the gathering of the carbonated alga lime is strictly enforced. In the license to gather carbonated alga lime, all of the requirements are described in detail. For example, the agreements about the area and the minimal and maximal depth in which it can be gathered. Furthermore, the Icelandic government is not alone in controlling the gathering of alga lime and the adherence to the laws. Tromp’s supplier has its own controls via an external company, which, at the same time, measures how much raw material is still present in the soil. The condition of the soil where the alga lime has been gathered is also examined. This proactive stand of the supplier is partly thanks to the food industry, which places such strict ecological requirements, to which all companies must comply.


In ten days, one can gather five thousand tons of produce from the sea. Direct delivery from Iceland, however, is impossible, because of the high export costs and the poor accessibility. For this reason, as soon as the carbonated alga lime is on shore in Iceland, it’s intensively washed and dried in the nearby town of Borgarnes. From there it goes in big bags by ship to Ireland, where it’s processed in the factory and packaged for human, as well as animal, consumption (cattle, poultry, and pigs). After this, it’s exported to the 41 countries, among which Holland, where Tromp is an important customer.

Recommended dosages:
dairy cowsduring lactation 50 – 80 grams per cow per day
dairy cows transition/dried-offcow 40 – 50 grams per cow per day
sheep and goats 15 – 30 grams per animal per day
pigs in all production stages 4 – 5 kilos per ton final feed
poultry in all product stages 2,5 – 5,0 kilos per ton final feed