"Sky" wrote

> nearly full gallon tin of Kikkoman Soy Sauce that had been hidden for
> some years in the deep confines of said pantry back under the stairs.
> If the soy sauce is still good, I'd rather not throw it away. I haven't

It will be fine. It is possible it has settled a bit so shake it a little.
Most of those 'use by' dates for this type of product are marketing schemes
to get you to buy more.