Mustard

As bought, in the cupboardabout a year

Once openedabout 3 months

Opening never extends a date: if the packet date comes sooner, go by that. Estimates for quality, not a safety ruling. What the dates mean

Mustard keeps for about a year in the cupboard, counted from when you buy it. That's SnapLarder's estimate for mustard in general. If the packet has a date, go by the packet: it's specific to that product.

How long does mustard last once opened?

About 3 months. Opening never extends a date: if the date on the packet comes sooner, go by that. Check the label, too: some products need to go in the fridge once opened.

Does mustard have a use-by date?

Usually not. Mustard normally carries a best-before date, which is about quality rather than safety. Stored as the label says, it’s usually still safe after it, though it may not be at its best. Use by vs best before

Can you freeze mustard?

There's no need. Mustard already keeps for about a year in the cupboard.