ThaiChef Food

Cooking Trick • Learns Thai cooking Techniques from a Thai chef | Thaichef food

15 August 2026 · 6:29 watch

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Discover the professional Thai kitchen secrets to preventing round and pea eggplants from oxidising, ensuring they retain their brilliant green colour during busy restaurant service.

Key takeaways

  • Prevent rapid oxidation of cut round and pea eggplants by utilizing a dedicated holding bath during prep.
  • Preserve the bright green colour of Thai eggplants to guarantee high-visual appeal in green and red curries.
  • Adopt professional restaurant mise en place techniques to slice and store eggplants ahead of peak service times.
  • Avoid the common pitfall of muddy, discoloured skins by controlling heat exposure and timing.

Maintaining Vibrancy in Thai Curries

In authentic Thai cuisine, presentation is just as critical as the balance of hot, sour, sweet, and salty flavours. One of the most common challenges professional chefs face when preparing classic green or red curries is maintaining the bright, appealing green hue of Thai eggplants. Both round eggplants and pea eggplants (often known as turkey berries) are notorious for oxidising and turning a dull, unappetising brown almost immediately after cutting. These two varieties—the larger, crunchy round eggplant and the tiny, bitter pea eggplant—behave differently under heat but share the same vulnerability to oxidation. In this video, ThaiChef Food shares invaluable kitchen secrets on how to handle these delicate nightshades to preserve their natural, vibrant colour throughout the cooking process.

The Prep-Ahead Solution for High-Volume Service

For a busy service, prepping delicate vegetables to order is simply not viable. Chefs require a robust mise en placeMise en Place(French) "Everything in its place." The foundational setup of prepped ingredients and tools before service begins. strategy that keeps ingredients fresh and visually appealing for hours. The video demonstrates the traditional Thai restaurant trick for pre-preparing eggplants. By utilizing a simple yet highly effective holding technique, chefs can slice round eggplants well in advance of service. This protective soaking method prevents enzymatic browning and allows the prep team to portion and store the eggplants safely. When a ticket comes in, the prepped eggplants are transferred directly into the simmering curry, cooking rapidly without losing their structural integrity.

Avoiding Common Pitfalls with Delicate Nightshades

The primary pitfall when cooking Thai round and pea eggplants is overexposure to oxygen before cooking, followed by improper heat application. If thrown directly into a curry without pre-treatment, the skins quickly turn grey and muddy, spoiling the aesthetic of a vibrant Thai green curry. By understanding how to buffer the cut surfaces and control the cooking time, you ensure the eggplant retains its structural integrity, a pleasant bite, and its signature jade-green skin. Applying these simple, restaurant-proven adjustments will immediately lift the visual standard of your Thai curry dishes.

Questions from the pass

Frequently asked questions

Why do Thai eggplants turn brown so quickly after cutting?

Thai eggplants contain high levels of phenolic compounds that oxidise rapidly when exposed to air. When the cell walls are damaged by cutting, enzymes react with oxygen to form melanin, turning the white flesh and green skin a dull brown or grey colour.

How do professional Thai kitchens prep eggplants ahead of service?

Chefs use a dedicated soaking technique to shield sliced eggplants from oxygen during prep. By submerging the cut round and pea eggplants in a protective bath, they can prevent enzymatic browning and keep the vegetables fresh and green until ready to cook.

What is the difference between round eggplants and pea eggplants in curries?

Round eggplants are larger, crunchy, and absorb the flavours of the curry gravy, while pea eggplants (turkey berries) are tiny, slightly bitter, and pop in the mouth. Both are essential components of authentic green and red Thai curries.

Do you cook pre-treated eggplants differently in green or red curries?

No, the cooking method remains consistent regardless of the curry base. Pre-treated eggplants should be added to the simmering curry paste and coconut milk mixture near the end of cooking, allowing them to soften slightly while retaining their vibrant green colour.

Original video by ThaiChef Food. This overview is written independently by The Chef's Circle editorial desk — watch the original on YouTube.

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