What is it?

OMACHI Instant Noodles With Potato Starch – Sour And Hot Shrimp Flavour is a premium Vietnamese instant noodle product from Masan Consumer, one of Vietnam's leading food companies . This 79g pack features noodles made with 2.9% potato starch combined with wheat flour and tapioca starch, creating a distinctively smooth, springy texture that sets it apart from standard wheat-based noodles . The flavour profile combines tangy sourness with moderate heat, complemented by savoury shrimp and tomato notes, along with aromatic spices like lemongrass, ginger, and galangal .

When to use it?

These noodles are ideal when you crave a bold, tangy, and mildly spicy noodle soup with authentic Vietnamese character. The distinctive sour and hot shrimp profile makes them especially appealing when you want something more exciting than plain savoury noodles. They work perfectly for quick lunches, comforting dinners, or late-night meals. The warming spices like ginger and galangal make them a satisfying choice on cooler days, while the tangy tomato and lemongrass elements keep the broth refreshing enough for year-round enjoyment.

How to use it?

Place the noodle block into a bowl and empty all sachets—sauce, seasoning, and vegetables—on top. Pour 400ml of boiling water into the bowl, cover with a lid, and let it steep for 4 minutes . Once the time is up, uncover, stir thoroughly, and enjoy. For an enhanced experience, consider adding fresh herbs like coriander or Thai basil, sliced chilli, prawns, or a squeeze of lime to brighten the flavours. Some reviewers recommend cooking the noodles in a pot for a better texture .

Why is this better?

OMACHI distinguishes itself through the innovative use of potato starch in the noodle recipe. The 2.9% potato starch content, combined with tapioca starch, creates a noodle texture that is noticeably more chewy, springy, and resilient than regular wheat-based noodles . It prevents the noodles from becoming soft or mushy, even after sitting in the hot broth. The sauce sachet is also notably complex, featuring a rich blend of tomato, chilli, garlic, lemongrass, ginger, galangal, and fish sauce—delivering a depth of flavour that is closer to a slow-cooked soup than a quick instant meal . As a Masan Consumer brand, Omachi targets a middle-to-high-end demographic with its premium formulations .

Comparison with in-line products

Longdan carries multiple OMACHI variants, each offering a different flavour experience. This Sour and Hot Shrimp variant delivers a tangy, spicy profile with tomato, lemongrass, and shrimp, while the Beef Flavouring variant offers a richer, more savoury broth with warming spices like cinnamon and star anise. The Rib Soup Style provides a milder, more subtle meat flavour . Compared to other Vietnamese noodles like HAO HAO Chilli & Lime Shrimp—which offers a sharper lime-focused tang—OMACHI's version is more rounded and complex, with tomato and lemongrass adding depth. The potato starch formulation also gives OMACHI a distinct textural advantage over HAO HAO and MI LAU THAI, making it the preferred choice for those who prioritise noodle chewiness and bite .