Can I use baking soda to raise pH in hydroponics? Sadly, no.
If vinegar is the questionable hero for lowering pH, baking soda is its equally questionable sidekick for raising it.
Can I use vinegar to lower pH in hydroponics? Mhm. Better Not.
When your pH creeps too high, it can be tempting to look around the kitchen and think, “Vinegar is acidic. Vinegar is cheap! Acid lowers pH. Problem solved!”