"It will be around 9 to 9.5 per cent," Mr Mooney said.
While an early pick, the Mission Estate was not the first - they were beaten to the punch by one day as Delegats and Consolation carried out a pick on Tuesday morning. "But this is early for us."
Mission Estate is one of three New Zealand wineries, and the only one in Hawke's Bay, which make up the Organic Focus Group, and as well as pursuing organic varieties the winery was also "experimenting" in the growing low-alcohol wine sector.
Pressing of the early pick began immediately and Mr Mooney expects the fermentation to run over the next fortnight - with bottling expected to be around May.
To celebrate the early pick, which has kicked off the season, he and the Mission harvest crew "dumped it all in the hopper and had a glass of sparkling".
It heralded the beginning of Mr Mooney's 35th vintage. It had been a diverse and colourful time as styles and wine technology were always on the move.
"I'm always looking for challenges and like to try new things out," he said, adding that like being the first to create a New Zealand bubbly (they called it Fontanella) the Mission was always looking for new avenues of innovation.
He said this year's overall vintage looked "very good" as after a damper than hoped-for November the summer had been warm and relatively fine.
The crop loads were expected to be around average - meaning the rest of the Mission harvest, about 2000 tonnes, would start being picked in the first week in March.