Climate crisis and black winter truffle: what is changing

The Black Winter Truffle (Tuber melanosporum) is facing an unprecedented challenge. Climatic anomalies, summer heatwaves, and prolonged drought are seriously jeopardizing the production of this gastronomic treasure. According to Coldiretti’s estimates, damages to Italian agriculture have already exceeded 3 billion euros, with direct repercussions on truffle woods. Buying truffles today means not only delighting the palate, but also supporting a fragile ecosystem and a supply chain in distress.


In this article, we will explore how the climate is altering the natural biological cycles of truffles, why the impending scarcity makes purchasing real truffle products a strategic choice, and how you can bring excellence to your table without making compromises.

The extraordinary discovery: a white truffle in August

On August 3rd, in the woods of Buti (Pisa), an enthusiast made an incredible discovery: a 23-gram White Truffle (Tuber magnatum Pico). An absolute rarity, as the autumn production cycle of this hypogeous fungus typically involves maturation between September and December.


But while we celebrate this exception, we must look at the bigger picture. As also highlighted by TruffleMe, global warming and prolonged drought are severely straining our natural heritage. Anomalous summer temperatures and thermal fluctuations can alter the life cycle of this hypogeous fungus, creating extraordinary anticipations that are, in reality, the thermometer of our woods' suffering.


Crisis figures: the Coldiretti bulletin

This summer's scorching heat and drought have not spared Italy's agri-food supply chains. From hazelnuts in Piedmont to bergamot in Calabria, and even Italian truffles, the risk is seeing cherished specialties disappear.


Here are the data provided by Coldiretti on the climate's impact on agriculture and truffle farming:

Climate Indicator

Recorded Impact

Consequence on Truffles

Summer temperatures

Over +2/3°C above average

Spore alteration and difficulty for hunting dogs

Lack of rain

Up to -40% compared to previous years

Soil too hard, disruption of water balance

Economic damages

Over 3 billion euros in Italy

Lower harvest yield of summer scorzone and precious truffles

Drought and heat impact on Italian truffles

Nature requires a perfect balance. Truffles are born from a radical symbiosis between the fungus's mycelium and the roots of host plants (oaks, hazels, lindens, hornbeams, holm oaks, etc.). When this balance is broken, the entire ecosystem collapses.


Cycle disruption of Tuber magnatum and Tuber aestivum

An alarm has been raised in Tuscany for the White Truffle. High temperatures, which began as early as mid-July, have parched the woods. The long absence of rain has interrupted the balance between soil moisture and temperature that had favored the fungus's development during winter and spring. The result? A sharp drop in the collection of summer scorzone (Tuber aestivum) in recent weeks, just when the season had started on a positive note.


Parched soil and its impact on the mycelium

The heat risks severely damaging the spores, compromising the truffle's reproduction during the crucial phase for fruit formation. Furthermore, the soil becomes so hard and compact that truffle dogs physically struggle to dig. Without water, the mycelium dries out and the plant enters water stress, cutting off the transfer of nutrients to the hypogeous fungus.

Why the Black Winter Truffle is at risk of becoming rarer than ever

If the White Truffle, Tuber magnatum, is sensitive to heat, the Black Winter Truffle, Tuber melanosporum, is no exception. This hypogeous fungus requires calcareous, well-drained soils that are kept at a constant humidity during the summer months to allow the fruit to enlarge. With forests "scorched" by the sun, production plummets drastically.


Lower production means a rise in market prices for fresh truffles. Buying fresh truffles will soon become a luxury for the few, with prices destined to rise due to scarcity and the high impact of climate change. This is where processed products become the smartest solution.


The importance of choosing high-quality processed products

Given the uncertainty of fresh harvests in the woods, buying real truffle products in the form of creams, sauces, or jarred truffles preserved during peak yield is a strategic move. Our products based on Black Winter Truffle are processed while extremely fresh, capturing all the aroma and intensity of the Tuber melanosporum, to guarantee you a consistent sensory experience all year round, regardless of climatic anomalies.


Discover our assortment: you can buy our Black Winter Truffle creams directly from our e-commerce, ideal for enriching first courses, meat, fish, or crostini.


Truffle accessories: how not to waste black gold

Whether you manage to buy a fresh truffle, one golden rule applies to all: don't waste it. The truffle's aroma is volatile and disperses easily if cut incorrectly.


To maximize its fragrance, it is essential to equip yourself with the right truffle accessories. A high-quality truffle slicer allows you to obtain slices as thin as rose petals, which maximize the surface area in contact with the hot dish, releasing the aroma in an explosive way.


I invite you to visit our section dedicated to truffle accessories, where you will find solid wood cutting boards and high-quality tempered steel truffle slicers.


Our commitment and call to action

Nature is asking us for help. As emphasized by Coldiretti, it is necessary to accelerate the Reservoir Plan and structural rainwater management in our homes.

We at NERO PREGIATO (tartufoneropregiato.it) are doing our part by supporting local excellence and offering our customers only the best of the truffle tradition. Specifically, we aim to stimulate interest in creating truffle patches on unused land.


Don't let the drought deprive you of the pleasure of the palate. Secure your taste for tomorrow, today.


👉 DISCOVER OUR SHOP AND BUY NOW Choose from the best fresh Black Winter Truffle in season, take advantage of fast shipping and sealed packaging that protects every gram of flavor!

Discover True Gourmet Products and Truffle Accessories selected for lovers of authentic Italian cuisine.

FAQ: Frequently asked questions about Truffles and the climate

How does global warming affect truffle harvesting?

Global warming alters the hydrological cycle of forests. The lack of summer rain hardens the soil, damages the mycelium, and prevents the proper maturation of spores, drastically reducing the quantity and quality of findable truffles.

How can I best store Black Winter Truffle?

Fresh truffles should be wrapped in paper towels, placed in an airtight container, and stored in the refrigerator. The paper should be changed daily. Alternatively, our processed products (such as creams and sauces) keep the aroma of the Black Winter Truffle intact for months, ready for use.

Is it better to buy fresh truffles or processed truffle products?

Both options have their charm. Fresh truffles offer a pure tactile and olfactory experience, but they are tied to seasonality and the price increases caused by drought. Real, high-quality processed products (like ours) offer a practical, economical, and always-available solution without sacrificing the unmistakable flavor of Tuber melanosporum.

Claudio Morati Visionary entrepreneur, educator, and truffle enthusiast

Claudio Morati

Visionary entrepreneur, educator, and truffle world enthusiast.


I am the creator of the NERO PREGIATO brand, and my mission is to reveal the underground world of truffles: a universe of excellence, tradition, territory, and sustainability that too often remains hidden. As a visionary and passionate entrepreneur, I have spent years committed to spreading the culture of this precious and mysterious fruit so that it may be fully understood and appreciated.


The Black Winter Truffle (Tuber Melanosporum) is the diamond of truffles: the most aromatic variety, with an intense yet delicate scent and an exquisite flavor that explodes after cooking, making it the undisputed star of international cuisine. With NERO PREGIATO, I carry forward the goal of making it known and appreciated beyond the world of fine dining.


Through this Blog and Events, I guide you to discover the cultural roots and the territory that give life to this excellence, because knowing the origins of the Truffle is the first step toward appreciating its true nature, loving and savoring it to the fullest.