She said a "tiny" team of people would stay on until August to complete decommissioning at the plant.
A spokesperson from DB, which owns the brewery, said the redevelopment of the Mangatainoka site would make it "more fit for purpose and safeguard it for generations to come".
"We are in the process of installing a new, smaller capacity brewery to service the requirements of the region and enhance the current Tui HQ experience, with the view to generating further tourism to the area.
"The decision, coupled with earthquake-strengthening works on the iconic Tui Tower, will see between $4-5 million invested into preserving and improving the site.
"This demonstrates DB's commitment to ensuring Tui Brewery is part of the community for many years into the future."
The new brewery will produce a range of six Tui brews available for trial on-site, as well as servicing the region with locally made Tui products.
It was previously reported by DB that the reason behind the shift in production was because of a changing market.
- Wairarapa Times-Age