Why do we still have nits? What exactly are 'purity rules'? And why have baths scarcely changed in 200 years? The long history of personal hygiene and purity is a fascinating subject that reveals how closely we are linked to our deeper past. In this pioneering book, Virginia Smith covers the global history of human body-care from the Neolithic to the present, using first-hand accounts and sources. From pre-historic grooming rituals to New Age medicine, from ascetics to cosmetics, Smith looks at how different cultures have interpreted and striven for personal cleanliness and shows how, throughout history, this striving for purity has brought great social benefits as well as great tragedies. It is probably safe to say that no-one who reads this book will look at his or her body (or bathroom) in quite the same way again.

'I return to Paris in five days. Stop washing.' So wrote Napoleon to Josephine in an age when body odour was considered an aphrodisiac. In stark contrast, the Romans used to bath for hours each day. Ashenburg's investigation of history's ambivalence towards personal hygiene takes her through plague-ridden streets, hospitals and battlefields. From the bizarre prescriptions of doctors to the eccentricities of famous bathers, she presents us with all the twists and turns that have led us to our own, arbitrary notion of 'clean'.

Finally, an up-to-date guide to cleaning and disinfection for the food preparation and processing industries. It discusses a host of examples from various food industries as well as topics universal to many industries, including biofilm formation, general sanitizing, and clean-in-place systems. Equally, the principles related to contamination, cleaning compounds, sanitizers and cleaning equipment are addressed. As a result, concepts of applied detergency are developed in order to understand and solve problems related to the cleaning and disinfection of laboratories, plants and other industrial environments where foods and beverages are prepared. Essential reading for food industry personnel.

A spirited chronicle of the West's ambivalent relationship with dirt The question of cleanliness is one every age and culture has answered with confidence. For the first-century Roman, being clean meant a two-hour soak in baths of various temperatures, scraping the body with a miniature rake, and a final application of oil. For the aristocratic Frenchman in the seventeenth century, it meant changing your shirt once a day and perhaps going so far as to dip your hands in some water. Did Napoleon know something we didn't when he wrote Josephine "I will return in five days. Stop washing"? And why is the German term Warmduscher—a man who washes in warm or hot water—invariably a slight against his masculinity? Katherine Ashenburg takes on such fascinating questions as these in Dirt on Clean, her charming tour of attitudes to hygiene through time. What could be more routine than taking up soap and water and washing yourself? And yet cleanliness, or the lack of it, is intimately connected to ideas as large as spirituality and sexuality, and historical events that include plagues, the Civil War, and the discovery of germs. An engrossing fusion of erudition and anecdote, Dirt on Clean considers the bizarre prescriptions of history's doctors, the hygienic peccadilloes of great authors, and the historic twists and turns that have brought us to a place Ashenburg considers hedonistic yet oversanitized.

Americans in the early 19th century were, as one foreign traveller bluntly put it, "filthy, bordering on the beastly"--perfectly at home in dirty, bug-infested, malodorous surroundings. Many a home swarmed with flies, barnyard animals, dust, and dirt; clothes were seldom washed; men hardly ever shaved or bathed. Yet gradually all this changed, and today, Americans are known worldwide for their obsession with cleanliness--for their sophisticated plumbing, daily bathing, shiny hair and teeth, and spotless clothes. In Chasing Dirt, Suellen Hoy provides a colorful history of this remarkable transformation from "dreadfully dirty" to "cleaner than clean," ranging from the pre-Civil War era to the 1950s, when American's obsession with cleanliness reached its peak. Hoy offers here a fascinating narrative, filled with vivid portraits of the men and especially the women who helped America come clean. She examines the work of early promoters of cleanliness, such as Catharine Beecher and Sylvester Graham; and describes how the Civil War marked a turning point in our attitudes toward cleanliness, discussing the work of the U.S. Sanitary Commission, headed by Frederick Law Olmsted, and revealing how the efforts of Florence Nightingale in the Crimean War inspired American women--such as Dorothea Dix, Clara Barton, and Louisa May Alcott--to volunteer as nurses during the war. We also read of the postwar efforts of George E. Waring, Jr., a sanitary engineer who constructed sewer systems around the nation and who, as head of New York City's street-cleaning department, transformed the city from the nation's dirtiest to the nation's cleanest in three years. Hoy details the efforts to convince African-Americans and immigrants of the importance of cleanliness, examining the efforts of Booker T. Washington (who preached the "gospel of the toothbrush"), Jane Addams at Hull House, and Lillian Wald at the Henry Street Settlement House. Indeed, we see how cleanliness gradually shifted from a way to prevent disease to a way to assimilate, to become American. And as the book enters the modern era, we learn how advertising for soaps, mouth washes, toothpastes, and deodorants in mass-circulation magazines showed working men and women how to cleanse themselves and become part of the increasingly sweatless, odorless, and successful middle class. Shower for success! By illuminating the historical roots of America's shift from "dreadfully dirty" to "squeaky clean," Chasing Dirt adds a new dimension to our understanding of our national culture. And along the way, it provides colorful and often amusing social history as well as insight into what makes Americans the way we are today.

Food safety is one of today's major concerns. One important factor in food safety is cleaning and sanitation of the equipment used in the food, dairy, beverage, brewery and hospitality industry. Cleanliness is a relevant factor; the public consumes more and more prepared or semi-prepared foods. The consequences of contamination can be catastrophic for the public and the economic and legal implications for the producer can be devastating. There have been several large and medium size enterprises bankrupted by a national recall of their contaminated products. This book was prepared with the practical and technical experience of many years working on real cases, improving in general the cleanliness and sanitation of the equipment where the food or beverage was prepared and packed. Know and apply these principles and you will reduce costs and improve cleanliness and sanitation. It is complemented with more than 50 spreadsheets of the most useful and used calculations. It includes an updated bibliography and important commercial references.

How often did our ancestors bathe? How often did they wash their clothes and change them? What did they understand cleanliness to be? Why have our hygienic habits changed so dramatically over time? In short, how have we come to be so clean? The Clean Body explores one of the most fundamental and pervasive cultural changes in Western history since the seventeenth century: the personal hygiene revolution. In the age of Louis XIV bathing was rare and hygiene was mainly a matter of wearing clean underclothes. By the late twentieth century frequent - often daily - bathing had become the norm and wearing freshly laundered clothing the general practice. Cleanliness, once simply a requirement for good health, became an essential element of beauty. Beneath this transformation lay a sea change in understandings, motives, ideologies, technologies, and practices, all of which shaped popular habits over time. Peter Ward explains that what began as an urban bourgeois phenomenon in the later eighteenth century became a universal condition by the end of the twentieth, touching young and old, rich and poor, city dwellers and country residents alike. Based on a wealth of sources in English, French, German, and Italian, The Clean Body surveys the great hygienic transformation that took place across Europe and North America over the course of four centuries.