"Wine is just a drink. If it's not delicious, it's not worth talking about," explains Japanese winemaker Atsuko Radcliffe matter-of-factly.

Speaking from her cellar door in the Upper Hunter Valley, roughly 250 kilometers northwest of Sydney, Radcliffe talks about wine in a casual and approachable manner, without the jargon one might expect from a winemaker of her caliber.

"It's not about whether it's (made from) 100 percent Chardonnay (grapes) or how long it's been casked," she continues. "If it's not good, it's not good."