val949•3d ago

Found out my shampoo pH meter was off by 0.8 this whole time

Finally tested my go-to shampoo with a fresh calibration solution and the reading was 5.2 instead of the 6.0 I thought. Switched to a different brand and now my color treatments are lasting almost 2 weeks longer - has anyone else dealt with wonky testing tools?

3 comments

3 Comments

the_robert3d ago

Blew my mind when I finally tested my kitchen scale with a calibration weight and found out it was off by 2 grams for years. It was totally messing up my baking. I switched to a cheap digital scale from the grocery store and suddenly my bread started rising right and my cookies stopped being flat. Still kinda mad about all those wasted batches of sourdough.

elliotm703d ago

2 grams is a pretty small margin. I'd be surprised if that was the main reason your bread wasn't rising or your cookies were flat. There's usually a few things going wrong at once in baking, like oven temp or old yeast. I've used the same cheap scale for five years without checking it and my stuff turns out fine most of the time. Sounds like maybe you just needed to adjust your technique a bit, not blame the scale.

jackson.matthew1d ago

Is it really that big of a deal? A 0.8 difference in shampoo pH might matter for color treated hair, but most people probably wouldn't notice a difference in their normal routine. Sounds like you just found a better shampoo that works for your hair and are looking for a reason why.