The mainstream culinary traditions in all three regions of Vietnam share some fundamental features:

• Freshness of food: Most meats are only briefly cooked. Vegetables are eaten fresh; if they are cooked, they are boiled or only briefly stir-fried.
• Presence of herbs and vegetables: Herbs and vegetables are essential to many Vietnamese dishes and are often abundantly used.
• Variety and harmony of textures: Crisp with soft, watery with crunchy, delicate with rough.
• Broths or soup-based dishes are common in all three regions.
• Presentation: The condiments accompanying Vietnamese meals are usually colorful and arranged in eye-pleasing manners.

While sharing some key features, Vietnamese culinary tradition differs from region to region.

In northern Vietnam, a colder climate limits the production and availability of spices. As a result, the foods there are often less spicy than those in other regions. Black pepper is used in place of chilies as the most popular ingredient to produce spicy flavors. In general, northern Vietnamese cuisine is not bold in any particular taste—sweet, salty, spicy, bitter, or sour. Most northern Vietnamese foods feature light and balanced flavors that result from subtle combinations of many different flavoring ingredients. The use of meats such as pork, beef, and chicken were relatively limited in the past. Freshwater fish, crustaceans, and mollusks, such as prawns, squids, shrimps, crabs, clams, and mussels, are widely used. Many notable dishes of northern Vietnam are crab-centered (e.g., bun rieu). Fish sauce, soy sauce, prawn sauce, and limes are among the main flavoring ingredients. Being the cradle of Vietnamese civilization, northern Vietnam produces many signature dishes of Vietnam, such as bun rieu and banh cuon, which were carried to central and southern Vietnam through Vietnamese migration. Other famous Vietnamese dishes that originated from the north, particularly from Hanoi include “bun cha” (rice noodle with grilled marinated pork), pho ga (chicken soup with rice noodles), cha ca La Vong (rice noodle with grilled fish).

The abundance of spices produced by Central Vietnam’s mountainous terrain makes this region’s cuisine notable for its spicy food, which sets it apart from the two other regions of Vietnam, where foods are mostly not spicy. Once the capital of the last dynasty of Vietnam, Hue‘s culinary tradition features highly decorative and colorful food, reflecting the influence of ancient Vietnamese royal cuisine. The region’s cuisine is also notable for its sophisticated meals consisting of many complex dishes served in small portions. Chili peppers and shrimp sauces are among the frequently used ingredients. Some Vietnamese signature dishes produced in central Vietnam are bun bo Hue and banh khoai.

The warm weather and fertile soil of southern Vietnam create an ideal condition for growing a wide variety of fruits, vegetables, and livestock. As a result, foods in southern Vietnam are often vibrant and flavorful, with liberal uses of garlic, shallots, and fresh herbs. Sugar is added to food more than in the other regions. The preference for sweetness in southern Vietnam can also be seen through the widespread use of coconut milk in southern Vietnamese cuisine. Vast shorelines make seafood a natural staple for people in this region. Some signature seafood dishes from southern Vietnam include banh khot and bun mam.

The Mekong Delta cuisine relies heavily on fresh products which is abundant in the new land with heavy use of palm sugar, fermented fishes, seafoods and wild herbs and flowers. The history of the region being a newly settled area reflects on its cuisine, with Am thuc khan hoang or Settlers cuisine means dishes are prepared fresh from wild and newly-caught ingredients. The cuisine is also influenced by Khmer, Cham and Chinese settlers.

The cuisine of the Northern and Central Highlands regions is influenced by tribal traditions, with items such as thang co (Hmong horse stew), dried meats, com lam and ruou can.