Cafe Royale, on The Square, was left with bubbly milk after its organic supply was altered due to dry weather.
Owner Robert Winters said Anchor told him the milk was different because farms have to give cows a different type of feed.
In mid-January he was left with milk that was bubbly when it should have been smooth when frothed, he said.
The coffee dilemma brought home the effects of the drought, Winters said.
He also couldn’t get organic trim milk for about two weeks, disappointing some customers.
Winters had to warn customers that their usually silky coffees would have more air bubbles than normal.