The former Southlander swapped sheep farming for orcharding two years ago and has 5ha of the new pipfruit variety.
He expects to harvest about 2000 cartons of Jazz apples next month - his first export crop from the trees.
Mr Miller, his wife Paula and their three young sons shifted to Earnscleugh from Riversdale two years ago and are enjoying the change in lifestyle.
Growing fruit is a learning curve, he admits.
"It's certainly very different to farming and I couldn't have done it without [orchard manager] Chris Robb, who has the expertise."
When Mr Miller applied to Enza more than two years ago to grow Jazz apples, the returns from organically grown apples - about $30 a carton - were better than the returns for cherries.
"That's reversed since then and, indeed, the returns fluctuate from season to season and I won't know until June or July how much my Jazz apples will fetch."
However, Mr Miller remains optimistic about the future of the new variety.
"The selling point was their keeping qualities and their taste.
"They stay crisper and crunchier than other varieties."
The apples complemented the existing apricot, peach and cherry plantings in his orchard.
They were more labour intensive than the summerfruit, but the returns should make it worthwhile, he said.
The apple crop should double next year, to between 4000-5000 cartons.
Enza Otago regional manager Jeff McDonald said about 35,000 cartons of Jazz would be exported from Otago this year and that figure would double the following season.
Enza has exclusive rights to the variety and had "trademarked the DNA".
"Enza controls the quantity of Jazz trees planted in this country and overseas, limiting them to a certain number, so there can't be an oversupply on the market."
