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Callegari, Riccardo
L'Industria Del Cremortartaro
1876, Milano, Emilio Civelli, Tip. Editore
Industria del cremortataro by Riccardo Callegari represents an effort to bring scientific rigor to the Italian production of potassium bitartrate, the crystalline compound that naturally forms in grapes through the dissociation of tartaric acid into bitartrate and tartrate ions. These are the harmless “wine diamonds” that settle at the bottom of bottles, sometimes disconcerting to the uninitiated, yet entirely natural and safe.
Callegari explains that by filtering potassium bitartrate directly from wine, Italy could reduce reliance on imports of the very same compound, widely used as a stabilizing agent to prevent crystallization and in various other industries.
The book includes a finely designed table comparing quality and extraction values across wines, noting distinctions such as “Verdiso” from Valdobbiadene and Susegana versus “Prosecco” from Collalto (before its widespread diffusion), as well as Raboso from Veneto.
This work illustrates the scientist’s role in the early industrial development of late 19th-century Italy. Particularly engaging is the publisher’s subscription model on the back, offering readers different tiers of editions.
Callegari turns those pesky wine crystals into a symbol of progress, mapping Italy’s grapes with scientific precision and industrial charm.
Pp. 14, [1] r.e.
Original light-purple paper binding, with printed title at the front and other typographical notes on the back cover. Bookseller’s blindstamp on front (Libreria Robecchi, Milan). A very good copy.
Dimensions (inches): 9 x 6.5
Riccardo Callegari appears to have been an Italian scientist concerned with winemaking by-products