Cracking eggs.

dionar , that gadget looks ideal, but I am not prepared to pay 10.99! Thank you for finding it.

Saw this kitchen tool-- www.amazon.co.uk/dp/B06XS4XTMT/?tag=gransnetforum-21. Looks handy.

I don't bake and if we are having eggs for breakfast H does the cooking so can't comment.
As an aside H did call me to see an odd one recently one normal yolk and one small (5p piece ) solid but squishy lump in one shell.

I'm so easily pleased that I still get excited when I find a double yolk egg.

I opened a box of six yesterday and used them all - each one was a double yoke!

I buy organic eggs and those shells are quite thick.

Free range hens are not necessarily as free range as we like to think. They may be kept in vast barns where they can go outside but the numbers are so great that many hens cannot reach the pop holes that allow them to access the outdoors. Also debeaking isn't banned for free range hens whereas it is for organic.

I have thought that the time of year seems to make a difference!

No problem with Sainsbury eggs I crack them on the side of the bowl as I always have.

I buy extra large eggs from a local supplier, most have double yolks. The shells on these eggs differ. Some are thin, others quite tough. They all come on the same tray, so I assume they are from the same source, but I could be wrong. When I crack them it's always a surprise.

I'm finding the opposite shysal I buy free range (local) eggs from Asda and find that the shells are extra hard. I have to hit them pretty hard to break them and often end up breaking the yolk too.

Free range or organic eggs?
Maybe grit deficiency in the hens. There has to be some background to some food staying at the same price despite rising costs.