On food and cooking the science and lore of the kitchen ( PDFDrive ) 228

copper bowl over a water bath; the mix thickens at such a low temperature that direct heat can quickly overcook it In professional kitchens, where experience is long and time is short, zabaglione and sabayons are sometimes cooked right over a flame The advantage of a copper bowl in making yolk foams is not chemical, but physical: its excellent heat conductivity makes it quickly responsive to the cook’s adjustments However, copper does impart a distinct metallic flavor to the foam, and some cooks prefer stainless steel for this reason The ideal zabaglione or sweet sabayon is soft and meltingly evanescent, yet stable enough that it can be refrigerated and served cold Savory sabayons may be cooked short of maximal fluffiness so that they remain easily pourable, but the lubricating liquid in the bubble walls will eventually drain out and separate Fortunately, a separated sabayon can be rebeaten to its original consistency Pickled and Preserved Eggs Until the recent developments in breeding and artificial lighting, domesticated birds produced eggs seasonally: they would begin laying in the spring, continue through the summer, and then cease in the fall So, just as they did for milk and for fruits and vegetables, our ancestors developed methods for preserving eggs so that they could be eaten year-round Many of these methods simply isolated the eggs from the air and left them largely unchanged Water saturated with lime, or calcium hydroxide, is alkaline enough to discourage bacteria, and coats the egg shell with a thin layer of calcium carbonate that partly seals the shell pores Oiling with linseed oil apparently began on Dutch farms around 1800 The early 20th century brought the use of waterglass, or a solution of sodium silicate, which again seals the shell pores and ... summer, and then cease in the fall So, just as they did for milk and for fruits and vegetables, our ancestors developed methods for preserving eggs so that they could be eaten year-round Many of these methods simply...Pickled and Preserved Eggs Until the recent developments in breeding and artificial lighting, domesticated birds produced eggs seasonally: they would begin laying in the spring, continue through the. .. with a thin layer of calcium carbonate that partly seals the shell pores Oiling with linseed oil apparently began on Dutch farms around 1800 The early 20th century brought the use of waterglass, or a solution of sodium