In Bau Bang district, Binh Duong province, southern Vietnam, Nguyen Thi Thao Nhu, born in 2001, grows organic black termite mushroom (local name nam moi den) while managing it with a smartphone. Sensors constantly measure the temperature, humidity and hygiene of the cultivation shed, and those figures reach her own device. She supplies the market with about 1 tonne of organic black termite mushroom each month.
This is one site where a family-run farm that had relied on experience and intuition has passed to a new generation around data. For Japanese food buyers and mushroom-related procurement staff, it is a clue to learning in which items and with which technology young Vietnamese new farmers are starting up.
Born in 2001, running the cultivation shed with a single smartphone
Nhu, who studied business management at Ho Chi Minh City University of Agriculture and Forestry, returned to her family's farm after graduating and turned black-termite-mushroom cultivation into an IoT operation. Rather than leaving it to visual inspection and experience alone as before, she captures the key figures of the shed with sensors. Managing temperature and humidity and keeping hygiene, the machines also handle watering and humidification. Because the data gathers on her device, she can check the shed's state even while out.
Black termite mushroom is known to grow naturally in termite nests and is a mushroom of high artificial-cultivation difficulty. A slight deviation in the substrate's temperature or humidity lets contaminating microbes take over. That is precisely why the method of capturing the environment in figures takes effect. Nhu adjusts the content of her care while watching the speed of growth at each stage.
In the Vietnamese market, this black termite mushroom is considered an item that fetches a fitting price for its good texture and aroma. The wild product's harvestable volume cannot be read and its supply tends to be unstable. If the yield can be stabilized through artificial cultivation, year-round supply to restaurants and retail becomes real. What Nhu chose was an item that is hard to grow but commands a unit price, and a path of bringing in IoT as a weapon there. The harder the item, the more the difference between one who can control the environment and one who runs it on intuition alone shows up in yield.
A failure of discarding about 600 substrate bags became the turning point
It did not start up smoothly. Early on, about 600 substrate bags were infected by bacteria and had to be discarded. Rather than pulling out here, she verified the process one step at a time, from sterilization to inoculation to humidity management, and pinned down where the infection occurred. Identifying the cause proceeded not by intuition but by comparing recorded figures.
This crushing of failure connects to the current stable shipping. Automatic irrigation and humidification hold down water use and have also lowered labor cost and the discard rate. The work of raising yield becomes, directly, an improvement in the bottom line. In another case of going independent with mushrooms, in Hue a former engineer grows oyster mushrooms from acacia sawdust and built it into a business with monthly sales of 30 million VND also exists, and the stance of bringing waste and failure down into cost management is common to both.
Lining up only the figures that could be confirmed
| Item | Details |
|---|---|
| Producer | Nguyen Thi Thao Nhu (born 2001) |
| Sites | Bau Bang district, Binh Duong province |
| Items | Organic black termite mushroom (nam moi den) |
| Monthly shipment | About 1 tonne |
| Management method | Measuring temperature, humidity and hygiene with IoT sensors and monitoring by smartphone |
| Early loss | About 600 substrate bags discarded due to bacterial infection |
Amounts and sales are not listed because the original article gives no specific statement of them. Figures are based on the notation of the source article (dated August 10, 2026).
What comes into view when read against Japanese mushroom production
Japanese mushrooms, centered on shimeji and maitake, are mainly produced year-round in air-conditioned substrate plants. The idea of centrally controlling temperature and humidity in a management building is continuous with what Nhu's shed does with sensors and a smartphone. The difference is scale and who holds that control. In Japan, companies with facilities are at the core of production, whereas here an individual in her twenties runs the same principle on a small scale with compact sensors and communications.
It is also a contrast in terms of the entry point to farming. In Japan, securing new farmers is a continuing issue, and the weight of initial investment tends to be a barrier to entry. Nhu's case shows that environment-controlled items such as protected horticulture and mushroom cultivation can become a destination for a young generation that studied business at university. In Vietnam, in northern Phu Tho province, using idle forest, a producer earning 700 million VND a year from mushrooms has also appeared, and mushrooms, as an item easy to start with modest capital, are drawing in young people and career-changers.
Another thing that overlaps with Japan is how failure is handled. Japan's substrate plants, too, have raised yields while crushing contamination and lot-by-lot variation in fruiting through records. That Nhu subdued the discard of about 600 bags through process verification stands on the same idea, small in scale though it is. In farming that relies on intuition, a failure that ends as 'this year was unlucky' turns, if data is taken, into an improvement point of 'the sterilization step was off here.' The essence of generational change lies less in youth itself than in whether this habit of recording and fixing takes root in the farm.
Smartphone farming is not only about black termite mushroom
The way of capturing the environment in figures and operating it from a device is spreading regardless of item. In northern Phu Tho province, the irrigation and LED lighting of dragon fruit are a farmer who operates by smartphone to raise the unit price has emerged. With sensors and communications having become cheaper, it has entered a stage where environment control can be introduced even without being a large company. If this works for a high-difficulty item like black termite mushroom, there is ample room to roll it out to other high-value crops.
Seen from Japanese sourcing, this flow carries two meanings. One is that recorded cultivation data becomes, directly, the foundation of traceability. A farm where sensor logs remain can later show its harvest history and management conditions, so it is a good fit for export documentation. The other is that because such young producers are raised on the premise of organic and environment control, it becomes easier to find suppliers with the conditions in place at an early stage. There are also scenes where building a relationship at the launch period, rather than entering negotiation after a region has grown large, makes it easier to get one's wishes on volume and specifications through.
Practical points to confirm in sourcing
- The actual monthly output and seasonal variation. Always confirm the harvest's waves, whether the scale of about 1 tonne is stable year-round.
- Backing for organic. Confirm in writing which standard or certification the organic claim follows.
- The disclosure scope of cultivation data. Whether sensor records can be shared by lot becomes material for negotiating quality assurance.
- Supply risk due to being an individual operation. If the producer is one person, work out in advance the arrangements for increased output and for substitutes in case of a shortfall.
- Logistics and freshness. Fresh mushrooms keep only briefly, and temperature management and transit days from the producing region to Japan sway whether they can be adopted.
From intuition to data: the landscape of taking up farming changes
Nhu's black-termite-mushroom farm is not a type that catches the eye by scale. But the fact that someone born in 2001 who studied business at university crushes failure with figures and ships 1 tonne of a high-difficulty mushroom each month with a single smartphone pinpoints where Vietnam's farming is heading. For Japan's food and agriculture people, rather than waiting for a finished large producing region, making contact early with such environment-controlled young producers and designing data disclosure and stable supply together is the shortcut to securing the next sourcing partner.
