Tomato – Picking
Q: I want “vine-ripened” tomatoes but mine are too ripe and mushy when I eat them. When should you pick a tomato?
A: As you’ve probably noticed, tomatoes ripen in stages. Commercial growers pick them when there is no color showing and artificially ripen the fruit with ethylene gas.
When a tomato reaches a full size and the fruit becomes a pale green, it begins the ripening process which is regulated by an internal gas produced within the fruit called ethylene. Soon the tomato reaches a stage when it starts showing pink on the blossom end (called the ‘breaker stage’). At this stage the tomato can be harvested and ripened off the vine with no loss of flavor, quality or nutrition.
Red pigments in tomatoes don’t form above 95°F so tomatoes ripened in extreme heat will have a orange-red color. Tomatoes held at cooler temperatures will ripen slower. You can speed up or slow down the ripening process by raising the temperature (to an optimum of 85°F) or lowering the temperature (to a minimum of 50°F). Tomatoes develop their optimum flavor, nutrition, and color when the tomato is in the full red ripe stage but this doesn’t have to occur on the plant!
breaker stage
pink stage
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