Describe the bug
Some of Items witch is drankable doesn't give experience when they used.

Expected behavior
make a new tag to define consumable or not.

To Reproduce
Steps to reproduce the behavior:

1. Add XP Value
   
2. Consume This Item
3. Experience doesn't increased

Screenshots

Versions:

• Minecraft : 1.19.2
• Loader : 43.2.21
• PMMO: 1.19.2-3.1.3

Ah you are right. They are not potions.
I should have marked it as a Interaction/Compat, not a bug.

Just adding some info to make this easier to triage.
I have tested and can confirm this with:

• Minecraft: 1.19.2
• Forge: 43.2.14
• PMMO: 1.19.2-3.1.3
• Farmers Delight: 1.19.2-1.2.2

Using the following datapack:
melon_drink_test.zip

I tried your datapack but it doesn't work.

I think there is different logic when using potions.
Food Items are defined by EatFoodEvent.java but I cannot find potions.
Am I missing something?

I was posting it there for Caltinor (the PMMO dev).

Looking at Farmers Delight, I don't think they're food or potions, but their own usable item. I'll leave it to Caltonor to figure out what exactly is going on.