Phaedrine Stonebridge wrote in message ...
This year we planted a bunch of San Marzano "Italian" type tomatoes.
Yesterday my DH picked the first two apparently ripe ones. Both had
very firm flesh on the inside with almost no liquid or seed. And they
were at least one third hollow! In fact, the inside reminded me a lot
of a red pepper since it was so hollow. I have not seen this before in
any tomato. Does anyone know if this is a characteristic of this
particular tomato or some kind of growing problem? Our San Marzano
plants are just filled with unripe fruit--- more than I have ever seen
on any tomato plant of any variety. I have not tasted them yet. So
weird.....

Yes, they tend to have space in them.
That is why they are the best sauce tomato, no juice, all meat.