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Homebrew Parodinal - GenZ to OGs

phuc

Member
Allowing Ads
Joined
Feb 27, 2026
Messages
1
Location
Ho Chi Minh City
Format
Analog
Hi OGs, first thread in the forum!
I've been trying to brew my own Parodinal, scanning through a bunch of youtube channel, then ended up with Pictorial Planet and apenasimagens.com recipes.
The problem is, yes, both developer works, but the images are harsh in contrast, the details lost its sharpness, and it doesn't work like the original dev chart for Rodinal. Oh and the cloudy, muddy, milky stuff at the bottom :/ so annoying.

I'm using:
- 250ml of distilled water
- 15g of crushed tylenol
- 50g of Na2SO3
- 20g of NaOH

Any advice to improve this fantastic recipe would take me 1 step closer to the fully analog journey. Thank you OGs!
Btw I'm 23, stupid and brain-rotted so please be nice
 
Have you let the mixture sit for at least a couple days? The hydrolysis reaction that turns Tylenol into 4-aminophenol takes a bit to complete.
 
That's the same recipe I used. At 1:25 and 1:50, it worked exactly like Rodinal. The temperature of your developer needs to be around 20 degrees C. If it's higher, that will cause increased contrast due to overdevelopment.

More details about how exactly you are using it would be helpful.
 

Parodinal is my normal working developer, I use a version that uses potassium metabilssufite instead of the the sodium sodium sulfite, as here in portugal is much much easier and cheaper to find the first. You may want tho check this blog: https://caffenolcolor.blogspot.com/, as it contais lots of recipes for alt. devs.
 
Here is a clear version:

Parodinal with potassium bisulfite

Sodium hydroxide is caustic ,hazardous: http://www.ccohs.ca/oshanswers/chemicals/chem_profiles/sodium_hydroxide.html Parodinal is a homebrew developer made from Paracetamol/Tylenol (aka acetaminophen) capsule contents which are reacted with sodium hydroxide to produce p-aminophenol which is...
www.photrio.com
Develop for 10% longer than Rodinal.
 
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