Food writer and “tin-influencer” Frank Sweet taste-tests 21 supermarket tuna products in oil, including cans and some pouches, across multiple brands available in Australia. The series reports that the testing involves opening and evaluating more than 20 products and documenting their relative performance. According to the shared coverage, the results culminate in a ranked comparison of which tuna is preferred based on the reviewer’s tasting notes. The outlets converge on the headline outcome: Sirena does not take first place in the ranking. While the articles emphasize the broader comparison and the number of products tested, they describe the exercise primarily as a consumer-focused taste evaluation rather than a technical food-safety or laboratory study. The coverage frames the report as a guide for shoppers choosing supermarket tuna in oil, based on the reviewer’s sensory assessment of the products. All three outlets present the same central theme: a wide in-store range of tuna is compared, and the top-rated brand is not Sirena.