So.... what are everyone's secrets for picking a good watermelon in the store?
How many are old enough to remember when anyone selling watermelons would "plug" one for you to see if it was ripe enough? For those who have never seen that, you stick a fairly long knife in the melon 3 or even 4 times in a triangle or square with the angle of the blade such that all three cuts terminate together fairly deep in the melon, so you pull out a triangle shaped plug.
A lot of people used to "thump" melons to see if you got a kind of hollow sound that would indicate it was ripe.
And the more recent method was to rub the melon with your hand and a smooth exterior surface indicated ripe; a slightly rough surface . . skip that one.
Now, in the field, both watermelon and cantaloupe vines have a little curly growth on the vine called a tendril opposite the melon. When that little tendril has turned brown and dried up, that's an indication of ripeness.
But as jinman said, now-a-days the commercial operators have it down to a science, so you're probably just about as well off grabbing the one on top.:laughing:
Personally, I've always had a slight preference for yellow meat watermelons, but they're hard to find. Last summer, we were at a small 2 day a week "farmers market" and one of the farmers had small red meat melons for $3, but he had a larger yellow meat melon for $7. I bought the yellow meat melon, but he didn't have it down to a science.

When I got home and cut it, it wasn't ripe at all; completely worthless.
