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Vegetables from Thailand

Tooa-li-song-dorng (pickled peanut sprouts)ถั่วลิสงดอง

Tooa-li-song-dorng is sprouted peanuts mixed with about 10 % salt by weight and left closed in the shade for 2 to 3 days. Some makers add rice-wash water, which shortens how long it keeps. Thai peanut sprouts fall under the community product standard for pickled bean sprouts, which requires pH 4.0 or below.

Fully documentedVegetables2 days – 3 days

Recipe

Amounts from a sourceHome method from the JIRCAS Thai fermented-food card, with salt as a share of the sprout weight.
Peanuts, soaked, drained and left to sprout[jircas]
SaltAbout 10 % of the sprout weight[jircas]
Rice-wash waterOptionalShortens the storage life[jircas]

Total time across the recorded steps: 2 days – 3 days

Start
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What changes: Peanuts are soaked, drained and left to sprout

Step 1 of 3
Soak and sprout the peanuts
Time
Not documented
Temperature
Not documented
Salt
None given
Acidity
Not documented
Flavour
Not documented
Texture
Not documented
Colour
Not documented

Microbes at work in this step

Not documented for this step.

Method

Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source

At a glance

Tooa-li-song-dorng is sprouted peanuts mixed with about 10 % salt by weight and left closed in the shade for 2 to 3 days. Some makers add rice-wash water, which shortens how long it keeps. Thai peanut sprouts fall under the community product standard for pickled bean sprouts, which requires pH 4.0 or below. Made in 3 steps over 2 days – 3 days. The longest step, close in a jar or bowl and ferment in the shade, takes 2–3 days (JIRCAS 2026). Salt is 10 % (JIRCAS 2026).

Key numbers
Main step2–3 daysReported[jircas]Close in a jar or bowl and ferment in the shade
Salt10 %Reported[jircas]Wash the sprouts and mix with salt
AciditypH up to 4Set[tcps319]Close in a jar or bowl and ferment in the shade

What makes this one different

Tooa-li-song-dorng is mixed with dry salt rather than covered with the salted vinegar water of its mung-bean cousin. Some makers also add rice-wash water, which shortens how long it keeps.

Related ferments

Safety

Thailand's community standard for pickled bean sprouts names peanut sprouts in its scope. It requires pH 4.0 or below, total microbes no more than 1 × 10^4 per gram, no Staphylococcus aureus in 0.1 g, E. coli below 3 per gram (MPN) and yeasts and moulds no more than 100 per gram. The FDA says sprouts served raw or lightly cooked can carry Salmonella, Listeria and E. coli, because the warm, humid conditions of sprouting let a few bacteria on the seed grow to high levels. It says children, older adults, pregnant women and people with weak immune systems should avoid raw or lightly cooked sprouts. This recipe has no heating step [fda-produce].

Hazards the sources name: Staphylococcus aureus and Escherichia coli (the standard sets limits for both).

History and sources

Every number is labelled with how it is known. How this atlas is made

Thailand's Industrial Standards Institute issued Community Product Standard 319 for pickled bean sprouts in B.E. 2547 (2004), and its definition names peanut sprouts alongside mung-bean sprouts.

Starter
The sources we found do not say how its fermentation begins.
  1. [jircas] JIRCAS, Database of Fermented Foods of Thailand: Tooa-li-song-dorng (pickled peanut sprouts), read 2026-10-23gov
  2. [tcps319] Thai Industrial Standards Institute 2004, Thai Community Product Standard มผช.319/2547, Pickled bean sprout (tua-ngok dorng), covering mung-bean and peanut sprouts (copy on archive.org)spec
  3. [fda-produce] US Food and Drug Administration, Selecting and Serving Produce Safely, read 2026-11-05gov