How to Start a Mushroom Farm in Lebanon

1 Decide What Type of Mushroom You Want to Grow

The first decision is the mushroom species. Different species require different production systems, materials and infrastructure.

White Button Mushrooms

White button mushrooms (Agaricus bisporus) normally use prepared mushroom compost. A commercial setup typically needs insulated growing rooms, multi-level shelving, cooling, heating when required, humidification, fresh-air ventilation, CO2 control, air circulation, environmental monitoring and control, compost handling, and harvest and post-harvest facilities.

The compost stage and quality influence both farm design and day-to-day operation. Mycotech also supports growers sourcing mushroom spawn and cultures.

Oyster, Shiitake and Other Gourmet Mushrooms

These mushrooms use different systems. Depending on the business model, a grower may purchase ready-to-fruit blocks or prepare substrate locally. Local preparation can require raw-material preparation, mixing, bagging, pasteurization or sterilization, inoculation, incubation, fruiting, and culture or spawn handling.

2 Define Your Production Target

Many beginners ask, “I have a room. How many mushrooms can I grow in it?” For a commercial project, it is often better to work backwards from: “How many kilograms of mushrooms do I want to produce per week?”

3 Calculate the Required Growing Capacity

For white button mushrooms, production capacity is closely related to compost capacity. A practical planning benchmark is:

Important: growing area is the usable surface across all shelf levels—not the room’s floor area.

Actual values depend on shelving, compost type, growing method and operational strategy.

From Compost to Production

For planning, use approximately 250–300 kg of mushrooms per tonne of Phase 3 compost. This is a planning assumption, not a guaranteed yield. Results depend on compost quality, environmental control, management, disease pressure and harvest practices.

4 Design the Growing Rooms

5 Climate Control Is a System

An air conditioner alone does not create a controlled mushroom growing environment. The system may include cooling, heating when required, humidification, fresh-air intake, exhaust, circulation fans, dampers, temperature, humidity and CO2 sensors, controllers, alarms and monitoring. See Mycotech’s mushroom farm climate-control support.

The variables interact. Increasing fresh air to reduce CO2 may introduce warmer or drier outside air, increasing cooling and humidification demand.

6 Estimate the Investment Before Building

There is no single answer to how much a mushroom farm costs. Using an existing suitable building is different from constructing from zero.

• Growing-room construction
• Insulation
• Shelving
• Cooling
• Ventilation
• Air distribution
• Humidification
• Climate-control equipment
• Sensors
• Electrical installation
• Water supply
• Drainage
• Production equipment
• Initial compost, substrate or spawn
• Packaging and harvesting equipment
• Cold storage when required
• Working capital

7 Estimate Operating Cost and Profitability

Common operating costs include compost or substrate, spawn, casing material, electricity, water, labor, packaging, transport, cleaning and sanitation, maintenance, consumables and crop losses.

Use realistic rather than best-case production, price and loss assumptions.

8 Decide How You Will Source Your Production Material

White Button Mushrooms

Choose between purchasing prepared Phase 3 compost and producing compost locally. Compost production is a separate industrial process requiring additional infrastructure, equipment, expertise and investment.

Gourmet Mushrooms

Local production introduces substrate preparation, pasteurization or sterilization, inoculation and incubation.

9 Understand Your Market Before Choosing Farm Size

Mushrooms are perishable, so capacity must match realistic demand from supermarkets, fruit and vegetable shops, restaurants, hotels, wholesalers, distributors and direct consumers.

A farm capable of producing 1,000 kg/week is not necessarily a better investment than one producing 300 kg/week if the market cannot absorb the additional volume.

10 Common Mistakes When Starting a Mushroom Farm

11 Start With the Numbers

1. Business idea
2. Mushroom species
3. Target weekly production
4. Required growing capacity
5. Growing rooms and infrastructure
6. Climate system
7. Investment
8. Operating cost
9. Expected production and revenue
10. Market validation
11. Decision to invest

Feasibility planning does not eliminate risk, but it helps you understand the project before committing significant capital.