Caster sugar going rock hard in the cupboard

[opalescent]

It happens every time 🤦🏻‍♀️. I come to use it and the whole bag has set rock hard.

I bake reasonably frequently, so it's not sitting in the cupboard for months at a time?

How can I prevent this? Many thanks 😊

I suspect it’s not quite dry enough. Could any condensation, say from a kettle be getting to it?

It will be due to damp.

It's getting wet somehow. Probably just a bit damp rather than soaking. But it's definitely wetness.

Damp, I would think.

Can you try storing it in an airtight container?

Yup. Damp somewhere.

If it were just once then perhaps someone put a not completely dry spoon in the bag. But if it's always then it's almost certainly the conditions in which it's being kept.

Unless there's some rare and unusual fault with your supplier ...

I put mine in biodegradable bags and tie a loose knot, no damp and no solid blocks.

You could keep it in an airtight storage jar instead. That should solve the problem.

Transfer to a tub or jar, or put the bag inside a plastic bag.

I read that putting a marshmallow in the bag will stop it clumping/being damp but I've not tried it myself.

Put some in a bowl in the microwave with a wet piece of kitchen roll over the top. Keeping stopping microwave every 20 secs until it’s soft enough to use.

I only have this with brown sugar rather than caster sugar.

Ahh interesting!!! Funnily enough the kettle does sit directly below that cupboard. I will try an airtight jar for storage. Thanks all!