Yellow cherry tomatoes are slightly less acidic than red varieties, and therefore they are somewhat milder and sweeter in flavour. The indeterminate tomato plants have strong vines that produce high yields of the small yellow fruit, about one inch in diameter. Cherry Tomatoes can range in size from a thumb-tip up to the size of a golf ball and can range from being spherical to slightly oblong in shape. Cherry tomatoes retain quality for approximately 4 to 6 days at room temperature or up to two weeks in the fridge. Keep cherry tomatoes at room temperature for the best flavour.