Why does tuna last so long in a can?

Chef's answer
At Wild Planet, the tuna is either salted, or put in the can just by itself. From there, the cans are placed in a special cooker that heats the cans to a high temperature very quickly under pressure. Through this process, the tuna is vacuum sealed and sterilized in the cans so that it's shelf stable and safe to eat.
Frequently asked Questions 🎓
At over 1 billion pounds per year, tuna consumption in the U.S. is more than twice that of salmon. Salmon is more expensive (especially wild caught salmon) and is more likely to be considered a delicacy....Comparison chart.SalmonTunaProtein58g68g13 more rows.
Bonito, (genus Sarda), tunalike schooling fish of the tuna and mackerel family, Scombridae (order Perciformes). Bonitos are swift, predacious fishes found worldwide. They have striped backs and silvery bellies and grow to a length of about 75 cm (30 inches).
Commonly called bonita, false albacore, or little tuna, it resembles the Atlantic bonito, skipjack tuna, and species of mackerel. ... It is considered by many to be a trash fish because it has a darker and stronger taste than that of the other tunas..
Raw tuna is generally safe when properly handled and frozen to eliminate parasites. Tuna is highly nutritious, but due to high mercury levels in certain species, it's best to eat raw tuna in moderation.
Bonito is a species associated with the tuna family, but cannot be marketed as Tuna in many countries. Bonito is quite popular as a fried fish with olive oil, especially in the Mediterranean region..
Bluefin is extremely popular in Japan for sashimi, due to its large size, color, texture and its high fat content. Its quality in combination with its rarity makes it the most expensive tuna species..
Bluefin tunaBluefin are the largest tunas and can live up to 40 years. They migrate across all oceans and can dive deeper than 3,000 feet. Bluefin tuna are made for speed: built like torpedoes, have retractable fins and their eyes are set flush to their body..
A few more cooking questions 📍