Naples has a lot of iconic eateries and shops, but one of the lesser-known city icons is the kiosk of the fresh-water-seller. Scattered throughout the city, the banks of the acquafrescai – some of which are very famous – sell various mineral waters and refreshments. These kiosks were born to provide relief in the summer months, and for that reason they are widespread in other southern Italian cities, particularly in the Sicilian cities of Palermo, Catania and Syracuse, where the coolness of a granita, a semi-frozen dessert made from sugar, water and various flavorings, counters the oppressive heat.

It was a scorcher of a summer day in 2002, and we were pushing our broken Russian motorcycle and sidecar through crowded Plekhanov streets with a gnarly case of cotton mouth. Dripping in sweat, we limped up to the kiosk by our building and slipped some coins to the lovely Irma for a lifesaving cold bottle of Borjomi mineral water. She reached into her little fridge and passed a bottle to our trembling hands. We twisted it open, took a deep three-gulp pull and grabbed our neck in a panic, alcoholic vapors steaming from every pore of our body. Gasping, we handed the bottle back to her. “This is not Borjomi,” we wheezed. She sniffed it and jumped back. “Oh sorry. That is my husband’s spiritus,” she explained, replacing it deep into the fridge with a real bottle after checking it first.

I first met Socorro Irinea Valera Flores years ago, when Oaxaca was not yet under the spotlight of the culinary industry. As part of a high school project in which I had to map Oaxaca’s most “heartwarming” spots for food and drinks, I visited the iconic Aguas Casilda, a nearly 100-year-old storefront that has been selling aguas frescas (fruit-flavored water) to at least three generations of Oaxacan families. The idea of fruit-flavored water might sound strange to foreigners, and unremarkable to most Mexicans (the beverages are common throughout the country, albeit with a more reduced variety). But in Oaxaca, aguas frescas – essentially a mix of fresh fruit pulp, plain water, and some sugar if needed – are synonymous with freshness and excitement, given the selection of different flavors made from the myriad of fruits that grow locally.

It was our first Tbilisi summer stroll down the city’s main drag, Rustaveli Avenue; two sweaty, newly arrived pie-eyed tourists tripping on the 2001 reality. There were billboards advertising the recent kidnapping of a Lebanese businessman, policemen in crumpled gray uniforms extorting money from random motorists with a wag of their batons, and at the top of the street, a former luxury hotel looking like a vertical shanty was full of displaced Georgians from Abkhazia. Parched and cotton-mouthed, we entered a café of sorts for cool respite. The room had high ceilings, was stark and all marble-tiled, including the long, wide bar. A splendid social-realism mosaic of women, grapes and wine was laid into the back wall. The counter was decorated with a few tin ashtrays and a spinning rack holding several tall cone-shaped beakers filled with technicolored syrups.

As a chef and a mom, I love to get creative with food scraps, the parts that many people would normally throw away – stems, fat, seeds, rinds, skins, bones, etc. To me this is the heart of contemporary gastronomy – cooking with as little waste as possible and managing to create beautiful flavors and textures with humble ingredients. It’s an approach that’s beneficial not just for our own health but also that of the planet. This urge to limit food waste has led me to study the history of Greek and Mediterranean cuisines, which traditionally revolved around what we now call “sustainable cooking.” One great example of a historic culinary tradition that was all about using everything at hand is the spoon sweet, a type of fruit preserve with ancient roots and the official welcoming treat of Greece – it was traditionally served upon arrival in a Greek home.

Dear Culinary Backstreets, I’ve heard about drinks in Mexico called “aguas frescas,” but what exactly are they? Visitors to Mexico are sure to encounter aguas frescas, a popular category of drinks that are ubiquitous at food stands and eateries around the country. These colorful beverages, whose name literally means “fresh waters,” come in a variety of different flavors depending on the main ingredient, but generally all are made by mixing a fruit juice with water and sugar.

The city of Naples sits nonchalantly in the shadow of Vesuvius, which has remained quiet – yet active – since the famous eruption in 79 A.D. that destroyed Pompeii and Herculaneum. Despite its prominence, Vesuvius is not even the most powerful volcano in Napoli. That distinction belongs to the Phlegraean Fields, an underground caldera that forms the Bay of Naples. Around 12,000 years ago this super volcano exploded so violently that it shaped the continent of Europe. You might think that with all these active volcanoes around, Neapolitans would be afraid. They aren’t. In fact, most seem to relish the nearby volcanoes, claiming that they make the food here taste better.

For visitors looking to get beyond Shanghai’s urban core, among the main attractions are the plentiful water towns that ring the outer suburbs in just about every direction. The name refers to the bygone reliance of these towns on water for irrigation and transport, especially in the form of canals. Billed as ancient villages, the popular destinations tend to be packed with visitors, with traditional foods as the main draw – perhaps due in part to the lack of other activities on offer.