Beauty is important
You are looking for a solid and symmetrical watermelon without cracks, dents or soft parts of the crust.
No matter what the nature of the damage to the exterior of the watermelon is, they are transferred inside. Irregularities occur during the growing of the watermelon due to lack of water or excessive sun exposure.
Mature watermelon is 92% water and 6% sugar. This means that when you put it in a water the watermelon with a very small part will float on the surface, but you certainly won’t go to the market with a bucket of water.
It is best to take two watermelons with approximately equal size and compare in weight. The heavier one is the sweeter one.
Check the area where the watermelon is leaning
The section where the watermelon is supported should have a yellowish color. That is where the melon rested on the ground surface while matured in the sun. If the place is darker, it is much better. If it is pale or does not exist, then the watermelon was picked too soon.
Dark green and matte is the perfectly ripe watermelon. If shiny, it is more likely to be less lenient.
Many say that with this method you can’t succeed to find out whether watermelon is ripe or not, but the secret is in the analysis of sound. The knocking of the immature watermelon has a deeper tone than the mature one.