Supplemental Appendix 1: A brief description of different categories of street foods

Tea-bakery • Usually run their business stationary or ambulant vendors basis with a small volume of utensils. Usually sale

tea along with betel leaves, cigarettes, some bakery item i.e. biscuits, bread etc.

• Bakery items is a readymade items, usually

purchased from local confectioneries and served it

with bare hands to customers. Tea and betel leaves

are prepared in a stall. Tea is usually served in

reusable cups/glasses.

Chotpoti-fried snacks • Chotpoti is a popular hot and sour comprising vendors cooked chick peas, potato, onion and fresh chili.

Chotpoti vendors usually operate their business in a ambulant cart; have arrangement of stove to keep

the food hot.

• Preparation of Chotpoti ingredients partially done

from vendors home. Vendors usually bring boiled

chick peas, potatoes, and egg from their home and

prepare Chotpoti in the stall. Usually served with

both spoon and with bare hands on a reusable

plate.

• Fried snacks: Piaju (onion ), (

in batter), alu chop (potato and minced meat or egg croquette), (fried flat bread), shingara (‘curry

puff’ of fried pastry stuff with meat or vegetables),

chomucha (baked pastry stuffed with vegetables)

are commonly known as fried snacks. Fried snacks

partial prepare in their residence and usually fries

these in the vending place to serve hot. These

snacks have great demand in and liked

by people of all ages and generally found

everywhere in Bangladesh. Fried snacks vendors

usually run their business ambulant or stationary

basis.

Beverage-butter milk • Sugar cane juice, herbal medicinal sweet drink, vendors butter-milk is found more in summer season. Sugar

cane juice is the most common juice type, usually served chilled in reusable glasses. Sugar cane juice

vendors run their business on both stationary and

ambulant basis, use a heavy crusher machines to

extract juice from sugar cane, prepare and serve

instantly with ice. Butter-milk vendors prepare

butter-milk at their residence and usually serve in

reusable glasses.

• Herbal medicinal sweet drinks usually prepared with

different types of herbal ingredients i.e. herbal

plants, sugar, water. Usually prepared by mashing, blending, extracting juice or pulp and then mixed

with sugar and water. Preparation of these drinks

partially done at vendor’s residence. Vendors

usually mix these half processed ingredients on

vending places and serve in reusable glasses.

Beverage vendors run their business on an

ambulant basis.

Precut fruits-pickles • Precut fruit vendors usually sale various seasonal vendors fruits and vegetables like carrot, cucumber,

pineapple, green mango, golden apple, black berries. Usually they peel the fruits/vegetables, cut

into pieces and mix with and served instantly

on reusable plates, pieces of newspapers and old

book papers.

• Pickles are sweet, sour, and spicy, made of

vegetables and green fruits; very popular food item

among the school children in Bangladesh. The

preparation process includes boiling vegetables

followed by drying, preserving in mustard oil, which

usually done at residence. Served with spoon/hand

on pieces of newspaper or old book paper

• Usually these types of vendors were found as

ambulant basis.

Pitha-flattened bread • Traditional : These are traditional pitha or vendors native cakes. Usually prepared by rice/wheat flour,

sugar, jaggery, and other spices and served with mashed foods. Baked or fried made in various

shapes. Mashed foods are made of dry fishes,

chilies, salt and mustard oil. Preparation of

traditional pitha partially done at vendor’s residence

and usually bake these traditional pitha at vending

places and serve hot instantly to the customers.

Usually serve with bare hand on pieces of

newspaper or old book paper or plates.

• Flattened bread: Handmade bread. Served with

cooked vegetables, mashed foods or jaggery. Main

ingredients are rice/wheat flour, the dough is made

with water, flattened and then baked. Usually

prepared at vending place and serve with bare hand

on pieces of newspaper or old book paper or plates.

• Usually these types of vendors are both stationary

and ambulant basis.

Mixed - • Mix puffed rice and mix are popular

Bombay mix (a traditional snacks items, available everywhere in Bangladesh. crisp snack consisting of vendors are often found preparing and fried flour noodles, selling it as a mix with onion, chili, cucumber, , fried , mustered oil. Sometimes Bombay mix is sold flavoring and spices) separately from puffed rice, mix with onion, chili, vendors cucumber and mustered oil, serve with spoon/hand

in a cone made from pieces of newspaper or old

book paper, or in a polythene bag. Some vendors

sell mixed puffed rice with boiled chick peas known

as “” and mixture of spices. They prepare

ghugni and spices mixture at their home and mix

with puffed rice just before serving in their vending

time. Usually these types of vendors are ambulant

basis.