Melon skin bitter is a genetic trait, trait in bad weather especially high temperature and drought is especially obvious, do not eat the skin is. Many cucurbit crops (melons) have this trait, like cucumbers, gourds, squash, etc., occasionally encountered bitter, especially the part of the melon handle, especially bitter.

This bitterness is different from that of the bitter melon, which is generally not advocated for consumption, and breeders are trying to breed varieties that are not bitter under any conditions through selection.

When we were kids, many cucumbers had a mildly bitter flavor, which is rare now. You can be sure it's not pesticides. Pesticides bitter?

Haven't really tasted it yet