Etherics 7 is a specially formulated collection of the Biodynamic preparations that emphasises their digestive activity. Etherics 7 has been found, in over a dozen trials, to reduce the smell and increase solids breakdown, which provides minimal crusting in effluent systems. Once the effluent is spread the grass is more palatable to the cows which graze the pasture more evenly. They also appear more contented with less feed. These results have been experienced by New Zealand, United Kingdom, Chilean and Australian dairy farmers.