Top to bottom, left to right: Making cheese, wine, sauerkraut, and sourdough. Adobe Stock Images. Roman amphora, Zulu beer strainer, Lele palm wine cup, P'urhépecha bread bowl. Photographs by Toni Gentilli. Scanning electron microscope images of Schizosaccharomyces, Lactobacillus spp., Aspergillus spp., and Saccharomyces cerevisiae. Photographs by Tellspec; Jeol Ltd.; Rujira Thongluedee, Tipachai Vatanavicharn, Tanyarat Sutthiphatkul and Duangjai Ochaikul; Morgana Das Murtey and Patchamuthu Ramaswamy.