A whole and a cut lemon. Lemons are used primarily for their juice, though the pulp and rind (zest) are also used, primarily in cooking or mixing. Lemon juice is about 5% citric acid, which gives lemons a sour taste and a pH of 2 to 3. This acidity makes lemon juice a cheap, readily available acid for use in educational chemistry experiments.

Candy apples (also known as toffee apples outside North America) are whole apples covered in a sugar candy coating, sometimes followed by rolling them in nuts, with a stick inserted as a handle. These are a common treat at autumn festivals in Western culture in the Northern Hemisphere, such as Halloween, because these festivals occur in the wake of annual apple harvests. According to one source, candy apples were invented by Newark candy maker William W. Kolb in 1908 while experimenting in his candy shop with red cinnamon candy for the Christmas trade. This photograph shows a candy apple coated with red caramel and covered in chopped peanuts.

Grapefruit is the citrus fruit of the grapefruit tree (Citrus × paradisi), an 18th-century hybrid first bred in Barbados. The fruit is yellow-orange skinned and largely an oblate spheroid; it grows to about 10–15 cm (4–6 in) in diameter. The flesh is segmented and acidic, varying in color depending on the cultivars, which include white, pink and red pulps of varying sweetness (Ruby Red variety shown here).

Kushari is an Egyptian dish made with a mixture of rice, macaroni, and lentils, which is topped with a spiced tomato sauce and garlic vinegar and garnished with chickpeas and crispy fried onions. A sprinkling of garlic juice, or garlic vinegar, and hot sauce are optional. Originally made in the 19th century, the dish draws influence from Indian and Italian cuisine.

Still Life with Cheeses, Almonds and Pretzels is an oil-on-wood painting by the Dutch artist Clara Peeters, dated around 1615. Peeters specialised in still life pictures featuring beautiful objects, delicious fruits and expensive food. This type of still life is called banketje (banquet) in Dutch. In addition to the objects named in the title there are also curls of butter, figs and a bread roll. In the background is a gold-plated Venetian glass. The almonds and figs are lying in a dish of Chinese Wanli porcelain. The painting is in the permanent collection of the Mauritshuis museum in The Hague.

Jajan pasar (market munchies) in Java, consisting of assorted kue and usually served as a food gift or as a dessert for a rice dish known as tumpeng. Kue is a fairly broad term in Indonesian used to describe a wide variety of bite-sized snacks, including cakes, cookies, fritters, pies, scones, and patisserie. Kue demonstrate influences from indigenous, Chinese, Indian, and European cuisines, as well as European cake and pastry influences. For example, bakpia and kue ku are of Chinese Peranakan origin; kue putu is derived from the Indian puttu; kue bugis, klepon, nagasari, getuk, lupis and wajik are native origin; and lapis legit, kue cubit, kastengel, rissoles and pastel are European influenced.

Aisles of packaged food in a Fred Meyer hypermarket in Portland, Oregon. A hypermarket is a combination of a supermarket and a department store, and the Fred Meyer chain is one of the pioneers of the hypermarket format in the United States. Kroger, which owns Fred Meyer, is the top grocery retailer and the third largest general retailer in the country.

A Russet potato and the cross-section of another. Potatoes are the world's fourth-largest food crop. They originated in the area of present-day southern Peru and were domesticated 7,000–10,000 years ago. The Russet is the most commonly grown cultivar in the United States and Canada.

A collage of six mustard images: Seeds of the mustard plant (top left) may be ground (top right) to make different kinds of mustard. The four mustards pictured are a simple table mustard with turmeric coloring (center left), a Bavarian sweet mustard (center right), a Dijon mustard (lower left), and a rough French mustard made mainly from black mustard seeds (lower right).

A smoked Atlantic mackerel (Scomber scombrus). The smoking of fish was originally performed as a method of food preservation that would keep fish edible for more than a year. Recently, the availability of refrigeration and freezing has changed the primary purpose of smoking to enhancing the flavour of the fish.

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