Originally the farm Rhebokkenskloof was given to a Potgieter in 1698. In 1825 the Cellie family acquired the farm and called it Rhebokskloof.

Hildenbrand Estate has 3000 trees. Seventy per cent of the trees (Frantoio and Leccino) are for oil, and thirty percent (Mission) are for the table. Reni pressed 1 400 litres in 2002.
Hildenbrand Estate uses organic methods of farming, pressing and preserving olives. This is also the only estate which produces an Unpressed extra virgin oil, where the sheer weight of the fruit in the mat press produces a "free run", called tropf oil in German. Both oils are unfiltered.

The oils are sold from the farm and from distributors in Cape Town, Johannesburg, Germany, and Switzerland. Reni also makes plain and herbed table olives.