Early Girl tomatoes are turning out mealy.

[Charli]

Hello....
     This is my first time growing an urban garden in my backyard in the city of San Francisco and using an earth box to grow tomatoes in.
Obviously not even a semi green thumb since the very start of my tomatoes ripening, I have come to find they are mealy inside.  If anyone has any advice, I would greatly appreciate it as well as my husband who is tolerating eating them in salads anyway but not really enjoying it.
Thanks!

[gardendoc]

Charli, environment can cause this, leaving on the plants can cause this, variety coupled with other factors can cause this. What variety are you growing?

[Charli]

I am growing Early Girl tomatoes on one side of the Earthbox and Big Beef tomatoes on the opposite side.  I do leave them on the vines until they are red in color but when I do pick them, they are still very firm.  The weather here in San Francisco has not been very warm, 68 has been the highest and I am right on the bay.  I do keep my Earthbox tube full of water everyday as well. 

[gardendoc]

I would try picking a couple when they just start showing color. At this point they have all the sugars they're going to have. Place these on a warm windowsill or next to your coffee maker on the counter. Once starting to color tomatoes ripen in response to temperature, not sunlight. Try it an see what happens.