Sourdough Croissant & Specialty Coffee: Soul for the XLIII Coffee experience

French Patisserie is a taste art territory that XLIII Coffee pursues, in which we have chosen one symbol as the soul of the entire pastry cabinet: the Sourdough Croissant . Among the myriad of modern techniques, why do we look for an ancient, wild and challenging fermentation method like natural sourdough? The answer lies in the deep dialogue it creates with specialty coffee, a dialogue built on the foundation of “microbial terroir”, the complexity of flavors, and the art of patience.

I. "Microbial Terroir" in Sourdough at XLIII Coffee

Commercial yeast is a controlled and homogenized product. Sourdough starter is not. It is a living legacy – a microbiome of wild yeasts and lactobacillus bacteria, existing in a dynamic equilibrium.

What makes XLIII Coffee unique is that our yeast carries a unique microbial ” terroir “. It is not yeast from San Francisco or Paris. It is a native microorganism, nurtured and fully adapted to the tropical climate of Vietnam, with 80-85% humidity and 26-30°C temperature. It is this environment that creates a unique flavor structure, a very unique soul for each cake.

The parallels with specialty coffee are perfect. Just as the soil of Gesha, Panama, creates unmistakable floral notes, the “microbial terroir” of XLIII Coffee creates a unique signature for the croissant. Both are true expressions of a place.

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II. Sourdought Croissant with specialty coffee experience

The slow sourdough fermentation breaks down the sugar and protein structures, giving the croissant a flavor that goes beyond simple buttery richness.

It has a subtle tanginess and a deep finish. This complexity is the key to interesting pairing experiences, and here’s how we bring it to life:

  • If you are looking for balance and softness : Pair your Sourdough Croissant with a smooth Milkbase . The tartness of the croissant will cut through the richness of the milk, cleansing your palate and making the whole thing lighter and more harmonious.
  • If you love intensity and richness : A Fierce Shot is the perfect choice. The firm structure and deep aftertaste of the cake can “stand up” and dialogue on par with the strong intensity of the machine-brewed coffee, creating an energetic resonance.
  • If you are an adventurous and sophisticated person : Ask for a cup of Filter coffee, especially Washed or Anaerobic processed beans. The fermented notes of wine and ripe fruit in coffee will find a “soul mate” in the complexity of the yeast, creating new and memorable layers of flavor.
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The Art of Patience – A Ritual of Slow Living

A Sourdough Croissant takes days to make. The baker must be a “caretaker” who understands the “temperament” of the yeast every day. The process itself is a statement against industrial fast food culture.

Choosing to enjoy it is also a lifestyle choice. It is an act of respecting time, craft and genuine values.

This slow-living experience is reflected in each of our spaces. At the flagship Ngu Hanh Son, Da Nang , you can enjoy your cake with the sound of the waves. In the heart of Saigon, the store at 178A Pasteur, Ben Nghe is a haven for you to find tranquility, while the space at Thao Dien brings a sense of relaxation amidst the green. And at the flagship 2D Quang Trung ,Hoan Kiem, the conversation between cake and coffee takes place in a historical context of Hanoi.

Sourdough Croissant & Specialty Coffee: Linh hồn cho trải nghiệm XLIII Coffee

The Sourdough Croissant at XLIII Coffee is more than just a signature pastry. It is the physical embodiment of everything we stand for: respect for origin, mastery of transformation, and belief in the art of patience.

We invite you to come, not just to “eat a cake”, but to “experience a living heritage”.

Whether you are in the hustle and bustle of Saigon Ben Nghe, looking for a peaceful corner in Thao Dien, enjoying the fresh air of Da Nang, or walking in the heart of ancient Hanoi, take a moment. A moment to feel the unique dialogue between an indigenous microbial culture and the finest coffee beans from around the world.


Where the dialogues take place

III. Các câu hỏi thường gặp

1. Liệu vị ‘chua’ của sourdough có làm chiếc croissant khó ăn hơn không?

Đây là một câu hỏi rất tinh tế. Vị chua trong Sourdough Croissant của chúng tôi không phải là vị chua gắt, mà là một vị chua thanh (tanginess), một nốt hương nền tinh tế được tạo ra từ quá trình lên men chậm. Hãy hình dung nó không phải là nhân vật chính, mà là một người bạn đồng hành thông thái. Nó không lấn át vị bơ béo ngậy, mà giúp cân bằng lại, làm cho chiếc bánh trở nên nhẹ nhàng, sâu sắc hơn và không hề gây ngán. Đó là sự phức hợp mang lại hài hòa, không phải sự phức tạp gây khó khăn.

2. Nếu men chua là một thực thể ‘sống’, vậy có phải mỗi mẻ bánh sẽ có hương vị hơi khác nhau không?

Bạn đã chạm đến trái tim của nghệ thuật thủ công. Câu trả lời là có, và chúng tôi trân trọng điều đó. Giống như rượu vang có “vintage” (mùa nho), con men của chúng tôi cũng có những thay đổi tinh vi theo mùa, theo nhiệt độ, độ ẩm trong ngày. Vì vậy, trong khi chất lượng và kỹ thuật làm bánh là không đổi, những sắc thái hương vị nhỏ có thể biến đổi một cách duyên dáng. Đó không phải là một khiếm khuyết, mà là một dấu hiệu của sự sống, một lời khẳng định rằng bạn đang thưởng thức một sản phẩm thực sự được làm bằng tay, không phải một sản phẩm công nghiệp đồng nhất.

3. Điều gì làm nên giá trị thực sự của một chiếc Sourdough Croissant so với croissant thông thường?

Giá trị của nó nằm ở những thứ vô hình. Đầu tiên là Thời gian – hàng chục giờ đồng hồ lên men chậm mà chúng tôi đã kiên nhẫn đầu tư vào từng chiếc bánh. Thứ hai là Sức khỏe – quá trình lên men dài giúp phá vỡ một phần gluten và axit phytic, khiến chiếc bánh không chỉ đậm đà hơn mà còn thân thiện hơn với hệ tiêu hóa. Và cuối cùng, đó là Trải nghiệm – một hương vị phức hợp, sâu lắng và một câu chuyện về “terroir vi sinh vật” mà không một chiếc bánh công nghiệp nào có thể kể được. Bạn không chỉ trả tiền cho một chiếc bánh, bạn đang đầu tư vào một tác phẩm của thời gian và sự tận tâm.

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