Toshokan

Toshokan, natural wine producer, harvesting grapes in a California vineyard

The short version

A Berkeley-based natural wine library curating single-vineyard bottles from across Northern California with minimal intervention and deep respect for place.
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The word Toshokan means library in Japanese, and for winemaker Tim Sakhuja, that metaphor is everything. Each bottle in this Berkeley-born project is a window into a specific vineyard, a specific season, and the people who farm the land. Toshokan is handmade wine as curation: thoughtful, particular, and steeped in the conviction that place, time, and people are the only ingredients that truly matter.

From Donkey and Goat to Something All His Own

Tim came up through some of California's most respected natural wine addresses, including Donkey and Goat and Matthiasson, before launching Toshokan. His palate was formed alongside producers who prioritize texture over manipulation, and that education is audible in every wine he makes. Toshokan sources exclusively from conscientious, thoughtful growers in special sites across Northern California, most of them single-vineyard bottlings that allow the individual character of each parcel to speak clearly.

The Cellar: Minimal and Deliberate

Toshokan wines are spontaneously fermented by wild yeasts and bacteria present naturally on the grapes. Sulfur additions are minimal. Most cuvees see no fining or filtration. The portfolio spans Ribolla Gialla, Alvarinho, Pinot Meunier, Chardonnay, and Syrah, a range that reflects Tim's interest in varieties that carry acidity and translucency rather than weight. The wines are detailed and alive, products of a maker who treats the cellar as a place of observation rather than intervention.

What a Library Actually Does

A library does not create the stories. It preserves them, makes them accessible, and trusts the reader to engage. That is exactly what Toshokan does with the farming families and vineyard sites it works with. The wines are an archive of Northern California's best natural growing, bottled with care and released with the quiet confidence of someone who knows the collection is worth keeping.

Natural Winemakers

Maria and Sepp Muster, natural wine producers from Leutschach in Southern Styria, Austria, standing with the next generation of the family
Maria and Sepp Muster farm ten hectares of Demeter-certified biodynamic vineyards above Leutschach in Southern Styria, crafting textural, mineral whites from the region's distinctive Opok marl soil.
Possa, natural wine producer in Cinque Terre, Liguria, Italy
Heydi Bonanini practices heroic viticulture on terraced cliffs above Riomaggiore, producing Cinque Terre whites and the legendary Sciacchetra from rescued indigenous varieties.
Weingut Niklas, natural wine producer, in his vineyard in Alto Adige, Italy
Weingut Niklas is a family-run Alto Adige estate in Kaltern where Dieter Solva farms 7 hectares of calcareous mountain soils to produce precise, aromatic whites and structured Lagrein reds that have carried the family name for over 50 years.

What is what?

Is natural wine the same as organic? What is biodynamic, then? Vegan? Sure. Let's explore some of these concepts together.

What are you drinking tonight?

Explore the cellar, or let us choose for you with a curated natural wine club shipment.