The research team, led by Alolika Mangal with Vishwambhar Prasad Sati and Surajit Banerjee, conducted fieldwork between January and June 2025 across eighteen restaurants selected on the basis of popularity, ownership by community members, and location within or near settlement pockets. The method combined participant observation with unstructured interviews lasting roughly twenty to thirty minutes each, held with restaurant owners and forty regular customers inside the establishments. Separately, sixty Bengali respondents who frequently consume these cuisines were recruited through snowball sampling and interviewed about their preferences and perceptions. Interviews were audio- and video-recorded with consent, transcribed verbatim, and analysed through manual thematic coding, while the survey responses were organised into a food preference matrix using the Python libraries NumPy and Pandas for data cleaning and descriptive statistics. Respondents could select more than one preferred cuisine, so cumulative frequencies exceeded the sample size, and the resulting matrix was visualised as a heatmap in which colour intensity represented the number of respondents in each age group choosing each cuisine.

The Afghan story is the oldest and perhaps the most deeply woven into Bengali daily cooking. Pashto-speaking Afghan communities have settled in Bengal since the sixteenth century, but the Kolkata Afghans—mainly Kabuliwalas, immortalised in Rabindranath Tagore’s short story—arrived as traders of dry fruits, attar perfumes and hing, the pungent asafetida native to the Afghan mountains. When closed borders prevented their return, they settled around Madan Street, Chandni Chowk and Bentinck Street, and their goods entered middle-class Bengali kitchens. The study documents how hing transformed a classic Bengali preparation, the deep-fried kachuri, into the now-iconic hing er kachuri, while Afghan kebabs were reimagined as fillings wrapped in fried parathas with raw onions, echoing the city’s Mughlai rolls. More than five thousand Afghan families are estimated to live in Kolkata today, many of them second- or third-generation migrants for whom the city is home.

Field visits to eateries such as Islamia Darbar near the Nakhoda Masjid, Kabul Kolkata Restaurant in Park Circus, and Kachhi 1847 revealed a cuisine that thrives on authenticity rather than glamour. Islamia Darbar serves keema, kaliya, kaleji, kebab and nihari in a setting the researchers describe as reminiscent of a Kabul market, drawing mainly traders and business owners. At Kachhi 1847, the owner explained that the Peshawari chicken chapli kebab, the Sunday-only kacchi biryani made to order, and the Lab-e-Shireen dessert are in constant demand, ordered even for celebrations. Yet the study also notes a precarious side: many Afghan food joints struggle to survive, and the rustic spaces that remain function as cultural enclaves where sitting style, menu and clientele preserve a community identity that few literary works have recorded.

The Parsi presence presents a starker contrast between historical depth and present vulnerability. Parsi merchants arrived in the late eighteenth century as Kolkata became the political and economic centre of British Bengal, and the community has maintained one of the longest documented continuous presences of any trading group in the city. Their cuisine, however, was guarded—recipes rarely shared beyond the community—and adapted ingeniously to local ingredients. The study traces how the Persian khoresh, a slow-cooked meat dish with herbs, dried fruits and mild spices such as turmeric and saffron, became the Indian dhansak when merchants unfamiliar with lentils began adding three to nine types of pulses, spinach and hot Indian spices to stretch expensive mutton, transforming a mild sweet-and-sour stew into a fiery curry. Patrani macchi, steamed fish wrapped in banana leaves, mirrors the Bengali maccher paturi so closely that the two dishes are often confused.

Today that two-century-old migratory cuisine is in a critical state. The Parsi population of Kolkata is shrinking as younger generations migrate, the community ages, and economic growth slows, which means fewer cooks, lower demand and shrinking visibility. Small establishments such as Mancherji’s in Taltala, open six days a week and sustained by loyal regulars, survive partly on customised orders from Parsi households and Bengali wedding ceremonies. The owner, Supriya Mancherji, told the researchers that the trust of regular customers is what keeps the place running in a competitive market. Even community institutions like the Kolkata Parsi Club and the Kolkata Zoroastrian Community’s Religious and Charity Fund are struggling to preserve a culture that once shaped the city’s heritage buildings and religious sites. The 113-year-old Manackjee Rustomjee Parsi Dharamsala on Bow Street remains a rare gathering point, its open dining hall still serving home-cooked Parsi meals to travellers and food lovers alike.

The Tibetan culinary story began with displacement. When the Dalai Lama fled Tibet in 1959, thousands followed him into Indian exile, and government-designated settlements were established across the country, including in Darjeeling, where the Tibetan Refugee Self-Help Centre provided livelihood support. Seasonal traders of woollen garments, handicrafts and agricultural products travelled down historic trade routes through the duars—gateway passes active during the nineteenth century—to Kolkata, forming a settlement around Wellington Square in the city’s centre. The elderly migrant couple known as the Sundans are credited with introducing Tibetan food to the city, leading to the founding of Hamro Momo in 1985 and later institutions such as Tibetan Delight, Momo Plaza and Orchid. The researchers observed queues of college students outside Tibetan Delight, located near schools, medical colleges and cultural landmarks like Nandan and the Victoria Memorial Hall, with one young customer explaining that he had heard of the place from an uncle who once studied nearby.

Adaptation has been the key to Tibetan food’s success. The mild, yak-meat-filled momos of the Himalayas became chicken, onion and garlic versions for Bengali palates; inspired by traditional Bengali fried chops, vendors developed crispy fried and pan-fried kothey styles; and a recent variant infuses the momo with gondhoraj lemon, a fragrance deeply associated with Bengali vegetarian cooking. Thukpa, the hearty noodle soup, completed the trio of dishes that now dominate the city’s street-food landscape, appearing at weddings, rainy-day tables and roadside stalls alike. At the same time, fine-dining venues such as Yeti-The Himalayan Kitchen on Park Street and Denzong Kitchen in Lake Town have packaged Tibetan food within a Zen-inspired aesthetic for affluent diners seeking a Himalayan experience, demonstrating how a single cuisine can occupy both the cheapest and the most expensive ends of the urban food market.

Korean food arrived by an entirely different route: not through migration or trade, but through screens. The Hallyu, or Korean Wave, spread across East and Southeast Asia in the 1990s and then globally through digital platforms, amplified by the Korean government’s strategic cultural export plans and by phenomena such as Squid Game, Parasite, BTS and Blackpink. In Kolkata, the wave reached its peak during the COVID-19 pandemic, when locked-down young people turned to online entertainment and emerged with an appetite for bibimbap, Korean fried chicken and kimbap rice rolls. The study’s preference matrix quantifies this generational divide sharply: Korean cuisine drew sixteen respondents aged 18 to 25 and twelve aged 26 to 35, while Afghan cuisine peaked among those over sixty, with eleven respondents, many of whom associate it with nostalgia and the city’s Mughlai heritage. Young interviewees told the researchers that they loved Korean pop culture and therefore Korean food, and that many were unaware of the Afghan and Parsi establishments that had shaped Bengali tables for generations.

The researchers frame this as gastrodiplomacy in action—soft power, in the sense coined by Joseph Nye, translating cultural diplomacy from the state to the public through cuisine. Korean cafes such as Mise En Place, the BTS Army café and Seoul Café now compete directly with the city’s beloved Chinese and Mughlai food, propelled by social media marketing and the purchasing power of an affluent urban middle class. The contrast with the older communities is instructive: Tibetan food remains accessible across socioeconomic groups at street prices, Afghan food sits in an affordable mid-range of roughly 400 to 800 rupees for two, Korean food commands 1000 to 1500 rupees as a marker of global connection, and Parsi food, at 1500 to 1800 rupees with limited commercial presence, is confined largely to devoted patrons and elite enthusiasts. The study concludes that the visibility and survival of culinary traditions depend not only on taste but on economic accessibility, media influence, demographic strength and cultural power. As Parsi cuisine teeters on the edge of disappearance and Korean food surges on digital momentum, Kolkata’s rolling platter continues to prove that a city’s identity is negotiated one meal at a time.

Subject of Research: The influence of Afghan, Parsi, Tibetan and Korean communities on Kolkata's food culture and urban foodscape

Article Title: Underrepresented food culture and culinary journey of selected foreign communities of Kolkata

Article References: Mangal, A., Sati, V. P., & Banerjee, S. (2026). Underrepresented food culture and culinary journey of selected foreign communities of Kolkata. Discover Global Society, 4(1), Article 263. https://doi.org/10.1007/s44282-026-00595-0

Image Credits: AI Generated

DOI: 10.1007/s44282-026-00595-0

Keywords: Kolkata, food culture, Afghan cuisine, Parsi cuisine, Tibetan cuisine, Korean Wave, Hallyu, foodscape, migration, culinary heritage, soft power, street food

The research team, led by Jerripothu Prema Kejiya, Koniki Lakshmi Jahnavi, and colleagues at institutions including Hindu College in Guntur and Manna Biotech Private Limited in Hyderabad, designed the investigation to bridge a persistent gap between laboratory measurements and real-world cooking behavior. Rather than relying solely on tightly controlled conditions, the researchers simulated ordinary household and commercial cooking: 100-gram portions of a single batch of long-grain white rice were boiled in 150 milliliters of tap water in four different pot materials until the water was absorbed, without standardizing heating time or temperature. No salt, spices, or other ingredients were added, precisely because these could confound the aluminum signal. The deliberately unpolished approach was intended to capture the variability of actual kitchens, where pots are worn, flames fluctuate, and nobody measures the pH of their dinner.

The analytical backbone of the study was inductively coupled plasma mass spectrometry, or ICP-MS, a technique capable of detecting trace metals at extraordinary sensitivity. Food samples were oven-dried at 100 degrees Celsius and then ashed in a muffle furnace at 550 degrees Celsius to destroy organic matter, leaving behind mineral residue that was dissolved in trace-metal-grade nitric acid. Calibration curves built from certified aluminum standards achieved linearity exceeding an R-squared of 0.999, while procedural blanks, spike-recovery experiments yielding recoveries between 90 and 110 percent, and detection limits in the low hundredths of a milligram per kilogram confirmed the reliability of the measurements. Every sample was analyzed in triplicate. When the numbers came back, the contrast between cookware types was so extreme that a one-way analysis of variance produced an F-statistic of 542.7 with a p-value below 0.0001 and an effect size, eta squared, of 0.99—meaning virtually all of the variance in aluminum content was explained by which pot the rice had been cooked in.

Health-risk contextualization makes those figures more alarming than they might first appear. The European Food Safety Authority has set a tolerable weekly intake of one milligram of aluminum per kilogram of body weight, equivalent to roughly 0.14 milligrams per kilogram per day. The authors note that under high-consumption scenarios, aluminum-cooked rice alone could approach or exceed those recommended limits. Not all of that aluminum reaches the bloodstream—gastrointestinal absorption of aluminum is typically low, around 0.1 to 0.3 percent—but chronic exposure even at sub-acute doses has been linked in the scientific literature to oxidative stress, interference with iron metabolism, neurotoxicity, bone disorders, and anemia. Aluminum has also been controversially implicated in neurodegenerative disease, with elevated levels reported in the brains of Alzheimer’s patients, although a causal relationship remains unproven. What is certain is that aluminum serves no beneficial function in the human body, making every avoidable source of exposure a reasonable target for reduction.

The study did not stop at laboratory rice. The researchers also collected four popular street foods from local vendors to gauge real-world contamination: stir-fried noodles and Manchurian dumplings packed hot into aluminum foil containers, a chocolate bar in its original foil wrapper, and chicken biryani cooked in large aluminum handi pots using the traditional dum steam method before being wrapped in foil for customers. Biryani showed the highest aluminum concentration at roughly five to six milligrams per 100 grams, followed by noodles and Manchurian at approximately two to three milligrams, while chocolate registered below one milligram. These single-sample measurements cannot statistically separate the contribution of cookware from aluminum naturally present in ingredients, a limitation the authors acknowledge candidly. But combined with the controlled rice experiment, they paint a coherent picture: both cooking vessels and food-contact packaging measurably enrich the food supply with aluminum, extending exposure beyond domestic kitchens into the commercial street-food economy that feeds millions of urban Indians daily.

Perhaps the most revealing dimension of the study, however, was behavioral. Alongside the chemical analysis, the team administered a structured questionnaire to 35 food vendors, street cooks, and small restaurant workers near their research institute. The demographic profile reflected the informal food economy: 54.3 percent male, mostly aged 18 to 60, with 45.7 percent holding secondary-school certificates and 31.4 percent undergraduate degrees, while 11.4 percent had no formal schooling at all. The vast majority, 85.7 percent, were self-employed food vendors. What emerged was a portrait of near-universal aluminum reliance paired with striking ignorance of its consequences. Fully 82.9 percent of respondents used aluminum cookware daily, yet only 48.6 percent were aware that aluminum could pose any health risk—and of those who were, a mere 5.7 percent could name a specific condition, loosely citing brain problems or Alzheimer’s disease. Sixty percent had never even considered switching to alternative materials.

The statistical analysis revealed a crucial psychological distinction that could reshape how public health campaigns are designed. Education level was significantly associated with awareness of aluminum risks, confirmed by a chi-square test (chi-squared = 10.91, p = 0.028) and a moderate positive Spearman correlation (r = 0.344, p = 0.045). But awareness alone showed only a weak, statistically insignificant relationship with actual cookware use (r = -0.26, p = 0.124)—knowing about a hazard, it turns out, does not by itself change behavior. The decisive variable was emotional: concern about aluminum toxicity exhibited a strong inverse correlation with frequency of aluminum use (r = -0.599, p < 0.001). In other words, perceived risk, not abstract knowledge, drives protective action. Participants who had switched away from aluminum typically did so after a trigger event—encountering new information through social networks or television—a finding consistent with behavior-change theory and a hopeful signal that well-aimed risk communication can measurably alter kitchen practices.

The physical evidence of degradation collected by the researchers lent visceral support to the analytical data. Nearly half of respondents, 45.7 percent, had noticed blackening, whitening, or surface pitting on their aluminum pots, and about 11.4 percent had actually weighed their utensils over time, documenting cumulative mass losses of 10 to 50 grams. That missing metal did not vanish into thin air; laboratory corrosion studies show that repeated boiling, salinity, and acidic foods accelerate the dissolution of the protective aluminum oxide layer, releasing ionic aluminum directly into food. The discoloration that vendors dismiss as normal wear-and-tear is, chemically speaking, the visible signature of the same leaching process quantified by ICP-MS. The authors suggest these observable cues could serve as powerful educational tools, connecting daily experience to an otherwise invisible chemical risk—if a pot is pitting and blackening, aluminum is ending up in the meal.

Why does aluminum remain so dominant despite these risks? The survey answers are soberingly practical: durability (31.4 percent), market availability (28.6 percent), and family habit (20 percent) were the leading reasons cited, followed by lack of awareness of alternatives (11.4 percent) and affordability (8.6 percent). Comparable economic drivers have been documented from Bangladesh to Egypt, and researchers have previously described aluminum cookware in developing countries as an unrecognized public health threat. The study’s policy prescriptions therefore extend well beyond education. The authors call for translated, relatable risk messaging—framing a single bowl of aluminum-pot rice as a substantial fraction of one’s weekly safe limit—alongside mandatory labeling of cookware alloy composition, migration standards modeled on European Commission Regulation No 1935/2004 for food-contact materials, and the incorporation of metal-exposure topics into food-handler training and municipal licensing. Structural interventions, including subsidized trade-in programs for stainless steel and support for traditional cast iron or earthenware, could address the economic logic that currently locks vendors into aluminum. The researchers also recommend simple protective habits: avoid cooking acidic or salty foods in aluminum, never store leftovers in aluminum pots, and discard old, pitted vessels. Future work should expand sample sizes, include baseline measurements of raw ingredients to enable precise source attribution, assess bioavailability rather than total content, and integrate biomonitoring of urinary or hair aluminum to confirm internal exposure. As a pilot study, its numbers are indicative rather than definitive—but the convergence of analytical, observational, and behavioral evidence makes a compelling case that one of the world’s most common cooking materials deserves far more regulatory and public attention than it currently receives.

Subject of Research: Aluminum migration from cookware into food and the behavioral determinants of cookware use among urban food vendors

Article Title: Dietary aluminum exposure from cookware uses and its association with behavioral determinants in an urban pilot study

Article References: Kejiya, J. P., Jahnavi, K. L., sai, G. K., Vadlamudi, S., Gudapati, S. L., Boddupalli, P., S, J. G., S, R. P., Munikumar, M., & B, C. K. (2026). Dietary aluminum exposure from cookware uses and its association with behavioral determinants in an urban pilot study. Discover Toxicology, 3(1), Article 11. https://doi.org/10.1007/s44339-026-00057-x

Image Credits: AI Generated

DOI: 10.1007/s44339-026-00057-x

Keywords: aluminum, cookware, food contamination, dietary exposure, heavy metals, ICP-MS, street food, risk perception, public health, food safety, pilot study, neurotoxicity