Fixes this: https://forums.factorio.com/viewtopic.php?f=23&t=100057
In vanilla game all barrel recipes are unlocked at once. When I was new I got overwhelmed by the amount of new recipes and confused by mentions of fluids that were not yet unlocked for barrels. This was also the time I stopped enjoying getting notifications about unlocking new crafting recipes.
This mod tries to provide smoother experience by unlocks barreling recipes at appropriate stages:
| Technology | unlocked barreling recipes | 
|---|---|
| Fluid Handling | Water | 
| Oil Processing | Crude Oil, Petroleum | 
| Sulfur Processing | Sulfuric Acid | 
| Advanced Oil Processing | Light Oil, Heavy Oil | 
| Lubricant | Lubricant | 
| Cryogenic Plant | Fluoroketone | 
Starting from 2.0, It works great with mods adding new liquids — see gallery pictures (before and after). Kudos to macintacos for that feature!
 
             
                  
                
               
                     
                    