Historically, sugar was usually shipped as hard solid "
sugarloaves", which are difficult to break into small uniform pieces, giving rise to sharp tools and similar contraptions (see photo). The resulting pieces were irregular in size, and if a piece was too large, either
sugar nips had to be used, or the piece had to be dunked into the tea cup, and after sufficient dissolution, removed and set aside. The latter option was described by
Lev Tolstoy in his "
Where Love Is, God Is": "Stepanich drank his glass, turned it upside down and set the leftover bit of sugar on it".
Jakub Kryštof Rad, the Swiss inventor of the first sugar cube, started his effort after his wife hurt herself while chopping a sugarloaf. Rad had made the first sugar cubes in the early 1840s by pressing moist sugar into a tray resembling a modern
ice cube tray and letting the cubes dry. Despite Rad obtaining a patent in 1843, his business was ultimately unsuccessful. The next breakthrough came almost 30 years later, when
Eugen Langen, of
Pfeifer & Langen, used a
centrifuge to produce blocks of sugar that were subsequently cut into cubes.
Henry Tate (
Tate & Lyle) acquired from Langen exclusive rights for producing the cubes in Britain (on 13 March 1875) and started the first large-scale manufacturing of sugar cubes. Tate placed a very large bet on the innovation, temporarily running into personal financial difficulties to the extent that he had to pull his daughter from the boarding school she attended. The contract with Langen involved
royalties, but the factory was successful, producing 214 tons of cubes in 1878 and 1,366 tons in 1888. In 1880 Tate acquired rights to another process, invented in Belgium by Gustav Adant, where sugar "tablets" were manufactured on rotating machines and then sliced into cubes (at the time, they were called "
dominoes"). The new process replaced the Langen one in 1891 and was a huge success; standard quotes for refined sugar in London started to be expressed in Tate's cubes. Adant's process is still used, for example, at the
Raffinerie Tirlemontoise (since 1902), to make extremely hard cubes popular in
Belgium,
France, and
Arab countries. The first process to mold cubes without any cutting was invented in
Boston by Charles H. Hersey ("
Hersey drum", 1879); some of these units, modified in 1929 to produce fancy shaped pieces, are still in use today. == Use ==