The message
from Andy Mabbett contains these words:

I have just collected a couple of dozen fruits from my Japanese Quince.
Though they're as hard as bullets, most had fallen to the ground.

Will they ripen, or is that it?

If they are a pale custard yellow, they are ripe.

How might I use such a relatively small quantity?

Use them to flavour and set apple jelly.

Make pumpkin and quince jam.

Make straight quince jelly.

Freeze them, and use them later to help set 'difficult' jams instead of
citric acid.

--
Rusty Hinge http://www.users.zetnet.co.uk/hi-fi/tqt.htm

Dark thoughts about the Wumpus concerto played with piano,
iron bar and two sledge hammers. (Wumpus, 15/11/03)