Our take

Caymus Vineyards Bonanza Chardonnay White Wine

GSW Score

Score pending. A GSW score appears once the store listing carries a shopper rating and count.

Style
White wine
Size
750 ml
Grape
Chardonnay
Shelf barcode
0017224710226
Caymus Vineyards Bonanza Chardonnay White Wine bottle
Vendor listing image · stored in the Grocery Store Wine image archive

Our take

What we make of this bottle

Caymus Vineyards describes itself as a family-run winery. The company says the winery was established in 1972 by Lorna and Charlie Wagner Sr. together with their son Chuck Wagner, and that the same family still owns and runs it today. This Chardonnay was priced from $18.99 to $29.99 in our September 2026 checks.

Whether it went through oak is one way Chardonnay varies widely. Official category guides say oak and contact with spent yeast can add toast, spice and a rounder texture, though those come down to winemaking choices, not a guarantee. If you are comparing bottles at the shelf, oak is one difference worth asking about.

We do not have a shopper rating for this bottle. The median rating across the wines we track is 4.71.

Bonanza's own product listing, published on the Wagner family's shared shop site rather than caymus.com itself, answers the oak question directly: “not buttery or oak driven,” the brand's tasting note reads, describing “light melon and a bouquet of fresh flowers” with a round, slightly viscous entry and “vibrant acidity,” the producer's words. The Bonanza brand itself started in 2019 with a Cabernet Sauvignon, an homage to Caymus co-founder Charlie Wagner Sr.'s enjoyment of an easy glass of wine with a meal; this Chardonnay is a newer addition, continued by Charlie Sr.'s namesake grandson, by the brand's account. The winery's own online shop lists the bottle at $20 for a standard 750 ml, a separate figure from the grocery-store prices in our checks above.

Our call: worth a try if the producer's plain style claim is what draws you; Bonanza states directly that this Chardonnay skips oak and butter for a lighter, fruit-forward style, and it comes from a family that has run the winery since 1972, by the company's own account. Pass if you want a shopper rating or a tech sheet with the vineyard sourcing and alcohol level to weigh alongside that account; none of the three has reached our record for this wine.

More from the desk.

Related bottles with a written overview and a public evidence file.

The prices we checked

Dated store checks, not a promise about your store.

The regular price can vary by store and date.

From the producer

Family ownership

Caymus Vineyards says Chuck Wagner and his parents, Lorna and Charlie Wagner Sr., opened the winery in 1972. The winery remains owned and run by the Wagner family.

Research status

What we are still checking

Our overview above draws on the dated store feed, shopper ratings, our region and grape research, and any sourced producer facts. We are still working to confirm the current release, the full producer record, and the bottle itself, and we update this page as we learn more.

Grape guideChardonnay

The grape name gives context. It is not a review of this bottle.

Getting to know Chardonnay.

Chardonnay is a white grape used for still and sparkling wine. It can be made without oak for a lighter shape or fermented and aged in oak for more weight.

Category guide

What to expect in the glass

Official category guides place citrus and apple at the cooler end and stone fruit or tropical fruit in riper examples. Oak and time on the spent yeast can add toast, spice and a rounder texture, but those features are winemaking choices rather than a guarantee.

Sources: New Zealand Winegrowers; Napa Valley Vintners. Checked Aug 10, 2026. See all 116 Chardonnay wines we cover →

Where this information comes from

Store listing
Price, package, product identifier. Checked Aug 10, 2026.
Barcode
The shelf barcode shown here is computed from the store product identifier. It has not been checked against a bottle.
Method
Every price, rating and fact here is a dated observation. How we check.

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