What you see: Clear sticky stuff around the stem of your mango.
What it is: Sap!
Eat or toss: The mango is fine to eat. Clear sap near the stem doesn’t indicate anything is wrong with the fruit’s interior.
It’s OK to eat a mango that has clear stuff around the stem. Here’s why.
Mangos pack a lot of liquid, so much so that when they’re first harvested, they’re known to squirt streams of milky latex. University of Florida professor Jeffrey Brecht tells me they can squirt as high as a foot in the air!
That initial burst is acidic, and without proper handling can burn skin—both on mangos and on people. Eventually, however, the milky sap switches over to something more innocuous and clear. You tend to see that transparent, sticky liquid accumulate around the stem because that’s where it’s escaping from.
The amount of sap is determined by how water-saturated the mango tree was when the fruit was picked. If, say, it rained shortly before harvest, there would be more pressure and a higher volume of liquid ready to spray and leak.