[Photos] At This Australian Farm, The World’s Most Expensive Ingredient Grows Under Your Feet
The same black truffle shaved over pasta at your favourite KL fine dining restaurant was likely grown in soil just like this — and during Melbourne’s winter, you can go find it yourself.
- Red Hill Truffles, near Melbourne, grows four truffle varieties across all seasons, making it a year-round destination for visitors.
- Truffle farming demands extreme patience, with farms waiting five to eight years before achieving a reliable commercial crop.
- Trained dogs are the only reliable harvesting tool, as no technology can detect ripe truffles buried beneath the soil.
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The first instruction is to dip your shoes in a bleach bath.
Not because the farm is precious about cleanliness — though it is — but because the wrong fungal spore on the sole of a visitor’s boot could quietly devastate an underground network that took years to establish.
At Red Hill Truffles, located about 70 kilometres south of Melbourne on the Mornington Peninsula, the invisible is everything.
This is a farm where the crop cannot be seen, cannot be smelled from the surface, and cannot be harvested without a dog.
At the entrance to the truffière stands a rusted metal silhouette of a sow’s face — a quiet nod to the animal that started it all.
For hundreds of years across France and Italy, farmers did not train animals to find truffles; they simply brought female pigs into the forest and followed them.
The land itself has its own long history.
For nearly 120 years, this 45-acre plot was simply an apple orchard, first farmed by the owner, Jenny McAuley’s ancestors, the Holmes family, in 1886.
When Jenny inherited it from her uncle in 2003, she wanted to find a way to keep it alive and profitable for the next generation.
A holiday to Italy and France gave her the answer.
In 2005, she and her husband Mike cleared part of the old orchard and planted 260 to 300 truffle-inoculated oak and hazelnut trees — quietly beginning what would become one of Australia’s most celebrated truffle farms.
Mike, who bears a slight resemblance to Sir Ian McKellen, looks every bit the part of a man who belongs among ancient trees — a quiet wizard presiding over something magical beneath the earth.
Not What You Think It Is
Every tour opens with a correction.
“Truffle oil is not a real product,” says Jenny, holding up a freshly unearthed black truffle the size of a golf ball.
It’s made from a truffle aroma produced from petrochemical compounds. There’s no real truffle in it.
What she is holding is a Tuber melanosporum — the Périgord black truffle, the same variety that commands thousands of dollars per kilogram in European markets.
Its skin, called the peridium, is rough and bumpy.
Its flesh, called the gleba, is black with thin white veins running through it — the same visual marker as fat marbling in Wagyu beef.
If you’re at a market and the truffle is soft, walk away. Hard, black inside, white veins. That’s what you’re looking for.
The aroma is nothing like the oil.
Where truffle oil is sharp and immediate, the real thing is layered and subtle — earthy, faintly sweet, with a complexity that shifts depending on the individual specimen.
Jenny keeps an aroma wheel developed from Australian-grown truffles, listing notes that range from hazelnut and mushroom to corn and even tomato.
One visitor lifts the truffle, smells it, and says, “corn and tomato.”
She nods. “It’s on the wheel.”
The Science Beneath the Soil
Truffles do not grow naturally in Australian soil.
It was brought from Europe to establish a domestic industry, and the conditions required to grow it here are exacting.
Australian soils typically register between pH 5.5 and 6.5 — too acidic.
Truffle requires pH 8. Red Hill achieves this by adding tonnes of agricultural lime annually, a natural amendment that also strengthens the soil’s microbial web.
The truffle grows attached to the roots of host trees — at Red Hill, primarily oak and hazelnut.
The relationship is symbiotic: the fungus kills competing grass and weeds around the tree, giving it more light, moisture, and minerals.
The bare circle of earth around each tree, called the brûlé — as in crème brûlée, for its burnt appearance — is the visible sign that the fungus is active underground.
“We’re not poisoning the grass,” Jenny says.
That’s the fungus doing that.
Red Hill now has over 2,500 trees across 40 acres; McAuley planted the first 260 in 2005.
The farm found its first truffle five years later, in 2010, and did not have a reliable commercial crop until 2015.
That’s the reality of this industry. Five to eight years before you see anything.
The Dog Is Not Optional
There is no machine that can find a truffle.
No probe, no scanner, no technology that reliably detects a ripe specimen buried beneath the soil.
The only tool that works is a trained nose.
Red Hill’s primary hunting dog is Maddie, a seven-year-old English Springer Spaniel who has been working the truffière for years.
She is followed by Lizzie, still in training and prone to chasing birds.
Before them was Thomas — a rescue dog, not a purpose-bred truffle hound — who worked the farm for 11 years and died last year at 16.
The industry standard breed is the Lagotto Romagnolo, an Italian hunting dog purpose-built for this work.
McAuley chose Springers; Thomas proved the choice correct.
The original truffle hunters, female pigs, were used across Europe for centuries, drawn to ripe truffles by the pheromones — testosterone and oestrogen — that the fungus emits.
The same chemistry, Jenny explains, is part of why humans find truffle so compelling.
For a pig and for humans, truffle is evocative.
Pigs were eventually banned from truffle hunting in Europe — muzzling them to prevent them from eating the truffles was ruled cruel to animals.
Dogs, trained to locate the aroma and rewarded with food, replaced them entirely.
Maddie works on a lead; at the end of a hunt, she wants her ball.
Four Seasons, One Farm
Most truffle farms grow one variety. Red Hill grows four, across every season of the year.
The winter black truffle — harvested from June to August — is the flagship, and the season that aligns precisely with Malaysia’s mid-year school holidays, making Red Hill a natural stop for travellers already heading to Melbourne.
The summer black truffle, harvested from December to February, carries a milder aroma and suits lighter dishes.
The Burgundy truffle, from February to April, shares the summer variety’s genetics but with a more pronounced hazelnut character.
In August and September, the farm harvests a small quantity of bianchetto — a spring white truffle grown under pine trees, sharp and garlicky, that Jenny describes as “very different from the black truffles.”
The one variety she does not grow — and cannot — is the Alba white truffle.
Wild, untameable, and fetching around AUD8,000 per kilogram, it remains the benchmark against which the entire industry measures itself.
“No one has successfully farmed this truffle yet,” Jenny says.
And we need to learn how to farm it, or we’ll lose it.
The hunt itself is unhurried and hands-on; the dog marks the spot — scratching gently at the earth above a ripe truffle — and the guide peels back the top layer of soil, inviting you to kneel and smell the exposed ground before anything is touched.
Because truffles grow tightly wrapped around tree roots, you are handed small specialised tools and unearth the truffle yourself, taking care not to scratch or break it.
Back at the pavilion, you wash the muddy finds clean with brushes — and then the tasting begins.
If you find yourself attached to the exact truffle you pulled from the ground, you can buy it by weight at the farmgate market and take it home.
This article was produced following the Cool Escapes to Melbourne and Beyond familiarisation trip, organised by Visit Victoria, 24–29 June. All photographs were taken by the writer.
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