England was exposed to new foods (such as the potato imported from South America), and developed new tastes during the era. The more prosperous enjoyed a wide variety of food and drink, including exotic new drinks such as tea, coffee, and chocolate. French and Italian chefs appeared in the country houses and palaces bringing new standards of food preparation and taste. For example, the English developed a taste for acidic foods—such as oranges for the upper class—and started to use vinegar heavily. The gentry paid increasing attention to their gardens, with new fruits, vegetables and herbs; pasta, pastries, and dried mustard balls first appeared on the table. The apricot was a special treat at fancy banquets. Roast beef remained a staple for those who could afford it. The rest ate a great deal of bread and fish. Every class had a taste for beer and rum.