My celebrity tomato plant is producing squishy tomatoes! Most of the time, it starts getting squishy when it's greenish red! Ive tried picking early, it dosent work.
I water everyday because in the Dallas,TX area, it's gotten up to the 90s, and the soil dries on top fast.
Usually I check to see if the top layer is dry.
Should I water less?

I thought you had gotten a lot of answers already. Have you tried/checked into any of the suggestions made?

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Water more deeply every other day. They do better ownce they start to produce if they dry some.
If tomatoes are exposed to direct sun, it could be sunburn. Take pieces of thin rags and cover the tomatoes, tuck them in some, so wind doesn't blow rags off to easy.
I guess you could cover whole plant with some kind of thin cloth or shade cloth. Which, I've never done.
I just use odd-ball peices of thin rags, just enough to cover tomatoes.
😎😎😎

I did look at them, but I can't get them off the ground, and i dont overwater.
I'll try watering when the soil is mostly dry. (Which takes a couple of days)

Plantswilldance ! Oww ! You just gave it away. Tomatoes on ground !
Opps ! Tomatoes on ground, will rot ! Put a board under them, if you cant get them off the ground.
Then continue on, as you have been.
Let me know of any further problems arise.
😎😎😎

Does mulch not work?
What board can I use?

You have to get the fruits off the dampness of the ground. Hanging the clusters of fruits up over another part of the plant will work.