Naem

A sour pork preparation wrapped without a gut

Naem, also called Naem Moo-som, is a sour fermented pork preparation made on a small scale in Thailand. The mixture combines minced red pork with cooked pork rind or, in some places, pork ear; cooked glutinous rice, garlic, salt and pepper are also listed. Portions are wrapped in plastic film or bags and then tightly in banana leaves. The documented method does not use an intestine.

The preparation is described as a red, solid food with a sour and slightly salty taste. It is eaten as a side dish or condiment with fresh ginger and green vegetables. No dated first attestation or more precise birthplace is established here. The documented room-temperature fermentation has no validated food-safety endpoint.

What the recorded quantities mean

Pork rind is about 20–30% of the minced-meat weight. Cooked glutinous rice is listed at 7–10%, with a separate 7–8% by-weight-of-meat note for a short fermentation. The basis for the general 7–10% figure is not stated, so the figures remain distinct. Less rice is described as taking longer to produce the desired flavour; that adjustment is not a safety control.

Salt is normally 2–3% of the mixed ingredients. The JIRCAS record says less than 2% spoils easily and more than 3% tastes too salty. Those are product observations, not a validated pathogen-control range. Pepper is listed at 0–0.05%, without a denominator. Potassium nitrate is listed at 0–200 ppm, also without a denominator or a formulation and verification method. These figures describe the record; they are not instructions for dosing a home batch.

The source method and its limits

Trim and mince pork. Clean, boil and shred the rind into strips about 2–4 cm long; boiled pork ear can replace it. Mix the rice, pepper and nitrate, then combine that mixture with the pork and rind. Divide the mixture into portions, wrap them in film or bags, then enclose each tightly in banana leaves. Whole bird’s-eye chilli is optional.

Fermentation is listed as 3–4 days in the overview and 3–5 days in the method. The method gives room temperature without a numeric range. No organisms, measured acidity or water-activity result, or pathogen-reduction study is reported. The listed 1–2 week storage life has no stated conditions. The account does not establish that time, sourness or salt makes a batch safe, give household storage instructions, or say whether the finished preparation is eaten raw or cooked.

Raw consumption is not established as safe. The Japanese-language JIRCAS entry specifically notes Trichinella spiralis risk and says some avoid Naem raw; it also mentions stir-fried uses. CDC advises cooking meat to safe internal temperatures with a thermometer, and FoodSafety.gov lists 160°F (71°C) for ground meat and sausage. That general cooking endpoint is consumer guidance for a cooked serving; it does not validate the preceding room-temperature fermentation. This page preserves the recorded method as a historical account, not a ready-to-eat process.