The earliest Roman bakers almost certainly made bread for their own households, but not for sale to the public. Pliny the Elder tells us in his Natural History (18.28) that among the quirites of Rome’s past, women baked the family’s bread, an observation he bases on comparisons with contemporary non-Roman peoples. Yet modes of domestic production were probably as diverse as the families themselves; early terracotta figurines from the eastern Mediterranean show women, men, and children all participating in the production of bread (Fig. 1).Moreover, the figurine shows both milling and baking, processes that remained interlinked until the end of antiquity. Even later commercial bakers seem also to have been millers. Medieval bakers, however, rarely milled their own grain. To some extent, this resulted from the advent of new technologies such as watermills and windmills, but the watermill, at least, was available from the 1st century bce onward (Vitr.
Glass (ὕαλος (also 'rock crystal'), vitrum). The art of producing a vitreous surface on stone, powdered quartz (faience), or clay was known in pre-dynastic Egypt and passed to Crete during the second millennium bce. Glazed objects are common on Greek sites of the Archaic period, some of them Egyptian imports, others probably made locally. In Hellenistic and Roman times Egypt and Asia Minor were centres of fabrication of glazed wares, which often imitated bronze.Objects composed entirely of glass paste begin to appear in Egypt about 1500 bce, when two allied processes seem to have been in use: modelling molten glass about a core of sand, and pressing it into an open mould. The chief Mycenaean glass is dark blue imitating lapis lazuli, used for beads, inlays, and architectural ornaments. In the 6th cent. small vases made by the sand-core process became known in Greece; they have opaque blue, brown, or white bodies and a marbled effect was produced on their surface by means of a comb or spike. In the Hellenistic period mould-made bowls come into fashion; these were produced mainly in Egypt. Here the tradition of opaque polychrome glass was continued into Roman times with millefiori bowls, in which marbled and other polychrome patterns were formed by fusing glass canes of various colours and pressing them into moulds.
While *gold could be easily obtained from alluvial deposits by washing, silver had to be extracted by regular mining processes. The *Phoenicians are said to have been the first to bring silver into general use; several of the silver objects mentioned in *Homer have Sidonian associations (see sidon). The main sources for classical Greece were Mt. *Pangaeus in *Thrace, *Lydia, *Colchis, *Bactria, Siphnos, and *Laurium which provided abundant supplies for *Athens. In the western Mediterranean *Spain was the most prolific source of supply, with *Sardinia, Gaul, and Britain as minor sources. The conquests of Spain and Asia made silver plentiful at Rome, where it had previously been rare.Silver was worked with a hammer into plates which were soldered or riveted together and then decorated with repoussé work (ἐμπαιστική), stamping, chasing, or engraving. Vases might be hammered or cast from a mould and were often adorned with reliefs (emblemata) let into the body of the vessel or crustae soldered upon the surface.