Button Mushroom Farming in India — Temperature, Setup & Yield (2026)
📋 Table of Contents
Button mushroom (Agaricus bisporus) is India’s most popular mushroom, accounting for 75% of total consumption. At Dr. Dahiya Mushroom Farm, we produce 10,000 kg of button mushrooms monthly. In this guide, I’ll share the exact techniques we use for consistent, high-yield production.
1. Why Button Mushrooms?
- Largest market demand — Used by every hotel, restaurant, pizza chain, and household
- Premium pricing — ₹150–200/kg retail, ₹100–130/kg wholesale
- Longer shelf life — Lasts 5–7 days refrigerated (vs 2–3 days for oyster)
- Familiar taste — Most consumers know and trust button mushrooms
⚠️ Important Difference from Oyster Mushrooms
Button mushrooms require 14–18°C during fruiting, which means AC rooms are mandatory in most of India (except North India winter). This increases setup cost by ₹30,000–₹80,000 but the market demand is 5× higher than oyster mushrooms.
2. Temperature Requirements
| Stage | Temperature | Humidity | Duration |
|---|---|---|---|
| Composting (Phase I) | 70–80°C (self-heating) | N/A | 25–28 days |
| Pasteurization (Phase II) | 58–62°C | N/A | 6–8 hours |
| Spawn Run | 22–25°C | 85–90% | 14–18 days |
| Casing | 22–25°C | 85–90% | 5–7 days |
| Fruiting (Pin formation) | 16–18°C | 85–90% | 5–7 days |
| Harvesting | 14–18°C | 80–85% | 3–4 flushes |
Critical rule: Even 2–3°C deviation during fruiting can prevent pin formation entirely. Invest in a good thermostat and backup cooling.
3. Compost Preparation
Phase I — Outdoor Composting (25–28 days)
Formula per 1,000 kg compost:
| Material | Quantity |
|---|---|
| Wheat straw | 300 kg |
| Chicken manure | 150 kg |
| Wheat bran | 15 kg |
| Urea | 3 kg |
| Gypsum | 20 kg |
| Water | As needed (60–65% moisture) |
- Day 0: Wet straw, mix with chicken manure and urea. Make a pile 5 ft × 5 ft × 5 ft.
- Day 7: First turning — add gypsum and wheat bran. Pile should be hot (65–70°C inside).
- Day 11: Second turning
- Day 15: Third turning
- Day 19: Fourth turning
- Day 23: Fifth turning — compost should be dark brown, no ammonia smell
- Day 25–28: Ready for Phase II
Phase II — Pasteurization (6–8 hours)
Fill trays and heat the room to 58–62°C for 6–8 hours using steam. Then cool to 25°C before spawning. This kills harmful molds and bacteria while preserving beneficial microorganisms.
4. Spawning & Casing
- Spawning: Mix spawn at 2–2.5% of wet compost weight. Spread evenly on compost surface or mix thoroughly.
- Spawn run: Cover trays with newspaper. Maintain 22–25°C and 85–90% humidity for 14–18 days.
- Casing: After full colonization, apply 1.5–2 inch layer of casing soil (peat + lime or FYM + garden soil, pH 7.2–7.5). This triggers fruiting.
- Case run: Keep 22–25°C for 5–7 more days until mycelium reaches casing surface.
- Temperature drop: Reduce to 16–18°C to trigger pinning. This is the critical moment.
5. Harvesting
- When: Harvest when cap is still closed (before gills become visible). Size: 3–5 cm diameter.
- How: Twist and pull gently. Never cut — stumps rot and attract flies.
- First flush: Days 18–22 after casing (largest yield — 40% of total)
- Second flush: 7–10 days later (30% of total)
- Third flush: 7–10 days later (20% of total)
- Fourth flush (optional): 10% of total. Most commercial farms stop after 3rd flush.
6. Yield & Profit
| Scale | Compost Used | Yield (3 flushes) | Revenue | Monthly Profit |
|---|---|---|---|---|
| Small (1 room) | 1,000–1,500 kg | 200–375 kg | ₹30,000–₹75,000 | ₹15,000–₹45,000 |
| Medium (3–4 rooms) | 4,000–6,000 kg | 800–1,500 kg | ₹1,20,000–₹3,00,000 | ₹50,000–₹1,80,000 |
| Large (10+ rooms) | 15,000+ kg | 3,000–5,000 kg | ₹4,50,000–₹10,00,000 | ₹2,00,000–₹6,00,000 |
Read our detailed cost & profit analysis for complete financial breakdown.
7. Seasonal vs Year-Round Farming
| Approach | Season | AC Needed? | Cost | Best For |
|---|---|---|---|---|
| Seasonal (winter only) | Nov–Feb | No | Low (₹50K–1L) | Beginners, North India |
| Year-round (AC rooms) | All year | Yes | Higher (₹2L–5L) | Commercial farms |
Our recommendation: Start seasonal in your first year to learn the process. Scale to year-round with AC rooms once you have consistent buyers.
🍄 See Button Mushroom Farming in Action
Visit our 10,000 kg/month button mushroom farm in Sonipat, Haryana
Book Farm Visit ₹2,000Frequently Asked Questions
What temperature is needed for button mushroom farming?
Button mushrooms need 14–18°C for fruiting and 22–25°C during spawn run. In most of India, AC rooms are required except during winter months (Nov–Feb) in North India.
How much compost is needed per room?
A standard 10×10 ft room with 4-tier shelving needs approximately 1,000–1,500 kg of prepared compost to fill all trays.
What is the yield of button mushroom per kg of compost?
Good-quality compost yields 200–250 grams of mushroom per kg of compost over 3–4 flushes. So 1,000 kg compost produces approximately 200–250 kg mushrooms.
Can I grow button mushrooms without AC?
Only during winter (Nov–Feb) in North India where temperatures naturally drop to 14–18°C. For year-round commercial farming, AC is essential.
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