Thailand Guide

Tub Tim Grob in Bangkok ทับทิมกรอบ

Tub tim grob is water-chestnut cubes in coconut milk over ice. It is a Bangkok heat-break cup, not a bakery cake.

Bangkok30 to 50 THBthapthim krop Thai food hub
Tub Tim Grob in Bangkok

Photo: Chensiyuan at English Wikipedia (CC BY-SA 3.0)

Thaiทับทิมกรอบ · thapthim krop
Price30 to 50 THB
ClockAfternoon cup
IceEat it fast

What it tastes like

  • Crunch from the red water chestnut, sweet coconut, and crushed ice. Jackfruit sometimes sits on top.

How to order it

  • Thai name: thapthim krop (ทับทิมกรอบ).
  • Say: Khor thapthim krop, khrap/kha.
  • Eat it before the ice melts. This is not a take-home box.

Typical price

  • 2026 cash: 30 to 50 THB.

Where to try it

  • Siam and Pathumwan dessert shops, Siam Square and nearby shophouses. 11:00 to 20:00. 30 to 50 THB. A heat break after MBK, not a substitute for mango sticky rice.

Spice level and diet

  • Heat: None.
  • Diet: Coconut milk. Usually vegetarian. Red colour is typically food dye on the chestnut.

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Common questions

Is it ruby fruit?
The name is ruby. The crunch is water chestnut in a red coat.
Dairy?
Coconut milk, not cow milk, in the standard cup.