Keize Mumba Keize Mumba works as a sommelier for Grub & Vine restaurant and Culture Wine Bar in Cape Town. He produced his first wine, The Harp Red Blend 2017, last December, and is an associate taster for Platter’s South African Wine Guide. The sommelier suggests... Cabernet Sauvignon by Keize Mumba South African Cabernet: Single-variety wines and full-bodied blends...