Firefighters worked to strengthen containment lines of a 157-hectare bushfire at Exeter on Wednesday.
Crews worked to black out and extinguish the northern, eastern and southern boundaries of the fire.
Back burning was also undertaken on the western edge of the blaze.
"At this stage no properties are under threat and the TFS will continue to mop-up, black-out and patrol the fire over the coming days," a spokesperson said.
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The fire has been burning since about 1.30pm on Monday.
A Tasmania Fire Service spokesperson said neighbouring communities would continue to see lots of smoke for some time.
Residents are advised to keep their windows and doors closes, as the smell of smoke remains very strong in the area.
People with medical conditions are advised to have a personal plan for avoiding smoke from the burn.