First Grapefruit Picked
A grapefruit (ruby red) was accidently knocked off my tree. I decided to taste it. It was pretty sour. I am guessing that it is not ripe yet. My question is: How do you tell when the fruit of the ruby red is ready to eat? I have read on this forum that it is best to pick occasionally and taste. But, can you go by the color of the rind? I will attach a picture of the cut fruit showing the inside and the rind color. This tree was planted a year ago last month and has about 10 fruits on it this winter. I believe the ripening season is Dec to June. Thanks for any info you can give me on this.