Anderson, who continued to live in one of the distillery cottages after the site was mothballed in 1983, opened the site on behalf of Benromach owner Gordon & MacPhail, which bought the distillery in 1993.
Built to handle increased stocks of the Speyside malt, the new warehouses have increased Benromach’s capacity from 8000 to 15,000 casks.
Michael Urquhart, managing director of Gordon & MacPhail, said the firm was “delighted” that Anderson was able to open the new warehouses.
“These are exciting times for our classic, hand-crafted single malt whisky but whisky is a long-term business and the foundations for our success were laid when Tom worked here and in the years before that,” said Urquhart.
Gordon & MacPhail received support for the project from Highlands & Islands Enterprise.