Tassal has five marine farming zones, where the standard pen has a volume of 11,600 cubic metres and holds enough salmon to produce 120 tonnes once harvested.

[9] Tassal has four processing facilities, including a smokehouse, one retail outlet and a mobile salmon truck.

[12] On 31 December 2007, Tassal announced it was acquiring the assets and intellectual property of Superior Gold from the King Island Company, a wholly owned subsidiary of National Foods, for $26.5m.

[24] Communications between Tassal and the Department of Primary Industries, Parks, Water and Environment (DPIPWE) recorded several "unacceptable environmental impacts" from 2005 and 2009, something Greens leader Kim Booth called a "background of non-compliance.

The show focused on the Tasmanian Salmon aquaculture industry and the local opposition to bay leases, with issues covered including environmental impact, health and sustainability practices of Tassal in particular.

The episode included interviews with Dover mussel farmer Warwick Hastwell who accused Tassal of ruining his business.

Located downstream from Tassel's main farm, mussels stopped growing there after being covered with orange tunicate, an invasive invertebrate that Hastwell believed originated from in-water cleaning of salmon pens.

The goal was to improve stocking strategies, bio-security and allow longer fallowing periods to protect the environment.

A monitoring report by the Environment Protection Authority Tasmania (EPA) that was published in July 2022 found that after heavy antibiotic use in response to a vibrio outbreak in Tassal's Sheppards lease in January of that year, flathead salmon caught 2 kilometres (1.2 mi) away from the boundary of Tassal's lease contained levels of antibiotics above the reportable threshold.

[34] In 2017 Tassal confirmed its use of the antibiotic oxytetracycline,[35] which was not used in humans in 2018 in Australia, and was rated as low importance by the Australian Strategic and Technical Advisory Group on Antimicrobial Resistance.