Condiments Such As Mayo, Mustard, And Ketchup
Yes, common condiments such as mayo, mustard, and ketchup are all known to be shelf-stable. However, that doesn’t mean they aren’t slowly going bad. A regular-sized bottle or even a family one gives you enough product to use up before it spoils. This is why experts will recommend purchasing your condiments from the grocery store instead of Costco.
The business-sized packs from the superstore are way more than the average family needs, even if you do use the condiments every single day. Ketchup loses much of its taste and color after the five-month mark, so do think twice about this investment.