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Fruit from Thailand

Poot-sa-dorng (brine-pickled jujube)พุทราดอง

Poot-sa-dorng is mature jujube soured under a boiled and cooled brine of salt and palm sugar. The closed jar is set in the sun for 3 days. It is served dipped in sugar, salt and chopped chilli.

Fully documentedFruit33 days

Recipe

Amounts from a sourceHome recipe from the JIRCAS Thai fermented-food card, per kg of fruit, in cups.
Mature jujube1 kgWashed and drained[jircas]
Salt1 cup[jircas]
Palm sugar1/4 cup[jircas]
Water2 cups[jircas]

Total time across the recorded steps: 33 days

Start
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What changes: Starting material: mature jujube, washed and packed in a jar

Step 1 of 4
Wash and pack the jujube
Time
Not documented
Temperature
Not documented
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Lactobacillus plantarum
Candida
Lactobacillus sp.
Candida sp.
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

Poot-sa-dorng is mature jujube soured under a boiled and cooled brine of salt and palm sugar. The closed jar is set in the sun for 3 days. It is served dipped in sugar, salt and chopped chilli. Made in 4 steps over 33 days. The longest step, store, takes 30 days (JIRCAS 2026). Lactobacillus plantarum and other Lactobacillus sp. and Candida sp. do most of the fermenting.

Key numbers
Main step30 daysReported[jircas]Store
AciditypH up to 3.5Set[tcps160]Cover, close and ferment in the sun

What makes this one different

Poot-sa-dorng follows the general Thai fruit-pickle method under a salt and palm-sugar brine.

Related ferments

Safety

Thailand's community standard for pickled fruit requires pH 3.5 or below, total microbes at most 1 × 10^4 per gram, no Staphylococcus aureus in 0.1 g, E. coli below 3 per gram (MPN) and yeasts and moulds at most 100 per gram. It bans synthetic colours, borax and non-sugar sweeteners.

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

History and sources

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

History
The sources we found do not record its history.
Starter
The sources we found do not say how its fermentation begins.
  1. [jircas] JIRCAS, Database of Fermented Foods of Thailand: Poot-sa-dorng (brine pickled jujube), read 2026-10-23. Its microbe list cites The traditional fermented foods of Thailand (ASEAN, 1995).gov
  2. [tcps160] Thai Industrial Standards Institute 2003, Thai Community Product Standard มผช.160/2546, Pickled fruit (phonlamai dong) (copy on archive.org)spec