How to Clean Raw Bird's Nest at Home: How Long to Soak and How to Remove Feathers

Raw nest is the original nest, not yet processed, still mixed with feathers and impurities (Long Chau pharmacy (opens in a new tab)), so it must be cleaned before double-boiling. The tools are simple and mostly already in the kitchen:

• A porcelain bowl for soaking the nest, and a white plate to spread the nest on while picking (a white background makes dark feathers easy to see).
• Fine-tipped tweezers made for the job and a cup of clean water to dip the tweezers in after each pick (Long Chau (opens in a new tab); Dien May Xanh (opens in a new tab)).
• A sieve or basket with very small holes to filter out fine down without washing away nest crumbs (Dien May Xanh (opens in a new tab)).
• A clean cloth and an airtight container with a lid (Pharmacity (opens in a new tab) lists a bowl, a white plate, tweezers, an airtight container and a cloth as the preparation kit).
• A well-lit place to sit. General practical experience: daylight or a white desk lamp makes fine down easier to see.

Sources give very different times, because they soften the nest in different ways: some soak it directly in water, others only dampen it and then rest it in the refrigerator. The table below records each source's exact figures so you can choose.

Long Chau also notes that you should not soak for so long that the nest turns mushy (source (opens in a new tab)). A thick, multi-layered nest takes longer to soften than a thin one; if it is your first time, try one nest first to learn how long your type of nest needs.

1. 1Step 1: Lift the softened nest out, drain off some water, then spread it on a white plate. Put a cup of clean water beside it (Long Chau (opens in a new tab)).
2. 2Step 2: Divide the nest into a heavily feathered part and a lightly feathered part so the picking goes neatly (Pharmacity (opens in a new tab)).
3. 3Step 3: Use tweezers to pick out each feather and impurity. After each pick, dip the tweezer tip in the cup of water so the feather comes off, then pick again (Long Chau (opens in a new tab); Dien May Xanh (opens in a new tab)).
4. 4Step 4: General experience: pick the large, dark feathers first; gently separate patches of strands to see feathers lying inside, and do not pull hard enough to break the strands.
5. 5Step 5: With raw nest, you may need to soak several more times and re-inspect each part of the strands before it is completely clean (Pharmacity (opens in a new tab)).

At a processing facility, the manual cleaning process usually has four steps: spraying water to soften the nest, cutting off the outer parts with attached impurities, cleaning with a compressed-air spray tool, and finally picking out all feathers and impurities by hand (according to a student group from Ho Chi Minh City University of Technology, in Thanh Nien (opens in a new tab) newspaper, October 2020). At home there is no compressed air, so hand-picking takes almost all of the time.

Fine down is thin and hard to pick one by one. Long Chau advises putting each portion of nest in a sieve, dipping it in a basin of fresh water, stirring gently with a spoon, and lightly brushing it if needed so that hard-to-pick feathers and impurities fall away; for more certainty, repeat this step once more (source (opens in a new tab)).

• Changing the water: Pharmacity (2025) suggests changing the soaking water every 10–15 minutes. The Hong Kong Centre for Food Safety advises changing the nest-soaking water once or twice and discarding it after use (CFS Hong Kong (opens in a new tab)).
• Also according to CFS Hong Kong, rinsing thoroughly and soaking the nest for several hours can remove more than 90% of the nitrite in the nest.
• Do not use detergent to soak the nest (Dien May Xanh (opens in a new tab)). Tuoi Tre (opens in a new tab) newspaper (April 2022) quotes industry experts saying that dripping cooking oil into the soaking basin to make feathers float up faster lowers the quality of the nest strands.

General experience for a final inspection: spread the nest thinly on a white plate, look at it under light, and pick any remaining dark specks. A very small amount of remaining down will not ruin the double-boiled dish but affects how it feels to eat.

Let the nest drain completely in a sieve before putting it in an airtight container. Both Dien May Xanh (opens in a new tab) and Long Chau (opens in a new tab) note that wet nest should not go into the refrigerator because it spoils easily.

Pharmacity (opens in a new tab) says nest that has been prepared but not yet cooked should be kept in the refrigerator's cool compartment for at most 24 hours. So clean only as much as you plan to double-boil that day or the next, and leave the rest of the dried nest untouched in its box. For details on storing dried nest and double-boiled nest, see the article on storing bird's nest.

• Soaking in hot water to soften it quickly: all the sources advise avoiding this (Dien May Xanh, Long Chau, Pharmacity).
• Soaking so long that the strands turn mushy, hard to pick and easy to break (Long Chau (opens in a new tab)).
• Using detergent or dripping cooking oil to make feathers float up.
• Filtering with a large-holed basket, which washes away nest crumbs (Dien May Xanh (opens in a new tab)).
• Rubbing or pulling hard by hand, which breaks the strands (general experience).
• Putting wet nest in the refrigerator, or cleaning the whole box at once and leaving it in the cool compartment for a long time.
• Skipping the re-inspection on a white plate, so fine down remains when double-boiling.

The most time-consuming part is picking feathers by hand. Dan Tri (opens in a new tab) newspaper (August 2021) tells of a skilled nest feather-picker who used to finish 100 g of nest in about a day. The Ho Chi Minh City University of Technology students in Thanh Nien (opens in a new tab) newspaper give a figure of about one hour per person for 100 g of nest in a process using a compressed-air spray tool. The two figures differ a lot because of different tools, different amounts of feathers in the nest and different skill; if you are cleaning at home for the first time, try one nest to estimate your own time.

Suggestions by the time you have:

• Have time, and want to prepare it yourself and see the nest in its original state: choose raw bird's nest.
• Want to keep the nest shape but cut down on picking: choose dried feather-removed nest. Yến Sào Uyên Nguyên's nest has about 95% of the feathers removed, and a 100g box holds 20 nest pieces; when soaking, you only need to inspect and pick out any remaining fine down.
• Busy, buying for older relatives, or for someone not used to preparing nest: choose refined Grade 1 or Grade 2, which only needs soaking and a gentle rinse.

For a full comparison of all types (including loofah-style and nest feet), see the article on types of bird's nest.

Put the clean nest in a glass jar with water and double-boil over low heat. Yến Sào Uyên Nguyên advises customers to double-boil 8g of nest with 250ml of water; add rock sugar to taste when the nest is almost done. For double-boiling times by source and how to double-boil with rock sugar, red dates and lotus seeds, see the article on how to double-boil bird's nest properly.

Yến Sào Uyên Nguyên's raw nest is house-farmed nest, sourced from swiftlet houses in Khánh Hòa, Phan Thiết and Vũng Tàu, a low-feather grade, sold in 100g and 50g boxes with red dates and rock sugar included. The processing facility at 53 Trần Nguyên Đán holds food safety certificate No. 6478/2026/SATTP-HCM (see the documents). Before buying, you can check the nest yourself using the article on how to tell genuine from fake bird's nest, or visit the Tân Định store (08:00–21:30 daily) to see the raw nest in person before choosing.