He stressed the importance, for example, of properly preparing pads with acidulated water and then pushing out the water before running an actual filtration; the need to acidulate with DE filtration media as well; the importance of filtering as closely before bottling as possible, since a tank of wine can go through a lot of changes in a couple days; and the value of a pressure sensor to regulate the flow from the pump in a filtration system.
Fresh artichokes require special handling - trimming the outer leaves, removing the inner section and cooking in some acidulated water with a little flour.
Bolland MDA (1994b) Effectiveness of two partially acidulated rock phosphates, coastal superphosphate and Ecophos, compared with North Carolina reactive rock phosphate and superphosphate.
My friend had chosen a mackerel and beetroot dish to start; the strong, salty taste of the mackerel being cut through by a delightfully acidulated beetroot puree.
Variation in RE within and between years has also been observed in a comparison of ordinary single superphosphate and partially acidulated rock phosphate by Bolland et al.