Les Fermes Longpres in Quebec: History, Organic Grain, How It Makes Money and Where to Learn More
Profile updated November 2026
Les Fermes Longpres is an organic grain farm on the St. Lawrence River just upstream from Montreal. A Non-GMO Report profile says it farms more than 1,600 acres of corn, soybeans, wheat and sunflowers, started in 1977, and has used ridge-till since 1992.
| Location | St. Lawrence River valley, upstream from Montreal, Quebec |
|---|---|
| Founded | 1977 by Luc and Simone Dewavrin, who emigrated from France |
| Sectors | organic corn, soybeans, spring and winter wheat, sunflowers; flour milling |
| Scale | More than 1,600 acres (about 650 hectares) of field crops; corn averaging about 160 bushels per acre (Non-GMO Report) |
| Why it is notable | Long-running organic and ridge-till grain farm with value-added flour and oil lines |
| Ownership | Dewavrin family; third generation since 2019 |
| Official website | Non-GMO Report profile (no official site found) |
History of Les Fermes Longpres
The Non-GMO Report says Luc and Simone Dewavrin started the farm in 1977 after emigrating from France. Their sons Thomas, Loic and Come took over in 1993, and in 2019 the farm passed to the next generation: Loic's sons Gregory and Matthew run the farming, and Thomas's daughter Justine oversees milling.
The farm began direct-marketing cold-pressed sunflower oil in 1995. In 2016 it started milling its own wheat into white flour, sold under the Co-op AgroBio brand through a Quebec organic farmers' cooperative. By 2019, according to the profile, the sunflower oil business and its related acreage had passed to another cooperative member.
What Les Fermes Longpres Grows and Raises
The farm is certified organic and uses no pesticides. It has farmed ridge-till since 1992, with minimal tillage, extensive cover crops such as clover, forage peas and annual ryegrass, and strip cropping. A four-year rotation includes one fall application of chicken manure, and shelterbelts and bat houses support pest control.
Crops include corn, soybeans, spring and winter wheat and sunflowers. Quebec's field-crop sector is dominated by corn and soybeans, and the ministry and Statistics Canada publish production data for the province. Here the interest is that corn yields about 160 bushels per acre without synthetic inputs, according to the profile.
How Les Fermes Longpres Makes Money
Organic grains
Corn, soybeans and wheat are the base crops, grown organically under a diversified rotation. The profile does not give prices or sales figures.
Flour milled on the farm
Since 2016 the farm has milled its own wheat into white flour sold under the Co-op AgroBio brand through a Quebec organic farmers' cooperative. Milling captures value that would otherwise go to a miller.
Sunflower oil
Direct-marketed cold-pressed sunflower oil began in 1995. By 2019 that business and related acreage had passed to another cooperative member, a reminder that value-added lines can be transferred.
Farm Insight: What Other Operators Can Learn from Les Fermes Longpres
Match soil practices to the business plan. Long-term ridge-till, cover crops and strip cropping reduce erosion and give the farm a story for organic buyers, while the four-year rotation spreads work and market risk across crops.
Use cooperatives to reach customers. Selling flour through a farmer-owned organic brand let the family add milling without building a retail operation. Passing a product line to another cooperative member shows that growth can mean handing things off.
Anyone who says ridge-till is just a fancy way of making hills has never met the farm satire crew at farm.FM, who agree but admire it anyway. The farm humor of a family that went from sunflower oil to flour mill in one generation is rich, and the ranch humor stays dry because bat houses are the only livestock we noticed. We promise our farm jokes about bats in the belfry are strictly organic.
For context, farm.FM is the nation's first satirical farm site and the home of Tractor Tunes, country music for farmers. Its contributors each keep an archive, and this one is a good sampler of ranch humor and farm jokes.
How to Contact Les Fermes Longpres
Website: https://non-gmoreport.com/?p=5264
No official website, address, phone or email was found in the search results, so none is listed. Facts come from the Non-GMO Report profile; later changes are not reflected.
Les Fermes Longpres Sources and Agriculture Authority Links
- Non-GMO Report: Les Fermes Longpres - Independent profile of the farm's history and practices
- MAPAQ grain monograph - Ministry publication on Quebec grain production
- Quebec agricultural productions - Provincial agriculture ministry index of farm sectors
- Statistics Canada: grain corn and soybeans in Quebec and Ontario - Archived federal profile of grain growers
- Grainews on Quebec farming - Feature on Quebec crops and farm tours
Les Fermes Longpres FAQ
How big is Les Fermes Longpres?
The Non-GMO Report says more than 1,600 acres (about 650 hectares) of field crops.
Is it organic?
Yes. The profile says the farm is certified organic and uses no pesticides.
What value-added products does it make?
White flour milled from farm wheat since 2016, and cold-pressed sunflower oil from 1995 until the line passed to another cooperative member by 2019.
How can I contact the farm?
No official site or contact details were found. The Non-GMO Report profile is the best public page; the flour is sold through a Quebec organic farmers' cooperative.
Les Fermes Longpres shows how an organic grain farm can build soil, add a mill and hand the farm to a third generation. See the Quebec farms guide on BestFarms.top for more notable producers.