We buy our chicken from an Asian butchers and the breasts are around twice the size of the trimmed back supermarket ones.
That said if you go too large they can be tough, so yes age does make a difference.
By far the biggest problem is after its been frozen! Then your talking tough so try to avoid.
For me I pre cook in a pint of boiling water adding these ingredients
1/2tsp turmeric
1/2 tsp garlic paste
1/2 tsp ginger paste
2 bay leaves
1/2 tsp salt
1/2 tsp of either curry powder, mix powder or basa
Leave on a simmer for about half hour and done.
cook in the usual way then on.
AVOID FROZEN BREAST!
That said if you go too large they can be tough, so yes age does make a difference.
By far the biggest problem is after its been frozen! Then your talking tough so try to avoid.
For me I pre cook in a pint of boiling water adding these ingredients
1/2tsp turmeric
1/2 tsp garlic paste
1/2 tsp ginger paste
2 bay leaves
1/2 tsp salt
1/2 tsp of either curry powder, mix powder or basa
Leave on a simmer for about half hour and done.
cook in the usual way then on.
AVOID FROZEN BREAST!