The man behind the brand, Daniel Hargreaves, will sell his first bottles of the concentrate at the first Remarkables Market of the 2014-15 season on Saturday.
Mr Hargreaves, also known as Crocky, said he first learnt about cold brew while living in New York and working in Soho as a barista.
''As the spring rolled out and then summer, we started doing cold brew coffee.
''In the States it's really popular and I just loved it.''
While cold brew coffee dated back to the 1600s, it was a relatively new concept in New Zealand, he said.
Mr Hargreaves first thought about starting his own business while working in the United States and after returning to Arrowtown this year he decided to turn the dream into a reality.
Everything ''has fallen into place''.
Partnering with Steve Kay, of Octane Coffee Roasters, and finding a commercial kitchen, he has spent the past few months fine-tuning the product.
''I'm working with different processes and flavour variations. I've just been making little prototype batches and giving it out for feedback.
''The process means it's less acidic ... it's super-refreshing ... without all the nastiness of [energy drinks].''
The coffee is brewed for 12 to 18 hours - the longer it is brewed, the more concentrated it becomes.
The end result can be served straight over ice, like whisky, or over ice with a dash of milk.
Mr Hargreaves said the public could buy takeaway ''real iced coffee'' at the markets, or a 500ml bottle of concentrate, which would make 1 litre of iced coffee.
''I'm looking forward to it - I like the market [concept] and I want to talk about the product and get people excited by it.''
Remarkables Market spokeswoman said Mr Hargreaves was one of several new stallholders this year, including Cakes and Co, specialising in ''ready to take home and bake treats''.
This year the market, underwritten by Remarkables Park Ltd, would be marking its fifth season with extended hours, trading until 2pm every Saturday.
It would also be running a photo competition until the end of November, challenging shoppers to take photos which ''capture the spirit of the market''.
Entries could be emailed to the organisers and the winners voted for by the public at the market and on social media sites.
The first market will be held from 9am on Saturday in the Remarkables Red Barn, just past the entry to the existing Remarkables Park Town Centre.
