So, here's the thing: canned tuna is a low-acid food, which means it can last for a pretty long time if stored properly. Generally speaking, canned tuna can last for 2 to 5 years in the pantry, but once you open it, the clock starts ticking. You've got about 3 to 5 days to use it up before it goes bad, if you store it in the fridge, that is.
Now, I know what you're thinking: "What if I don't use it up within 3 to 5 days?" Well, my friend, that's where things get a bit tricky. If you don't use it up within that time frame, you risk food spoilage, and trust me, you don't want that. But don't worry, there are ways to extend the shelf life of canned tuna, and I'll get to that in a bit.
