Ph test strips - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Ph test strips

Reply
 
Thread Tools
Old 11-12-2012, 09:04 PM   #1
chungking
Recipes 
 
Jun 2012
Posts: 310
Liked 10 Times on 9 Posts



I want to test my starsan solution that has been sitting around for a month. Everyone on here says it should be < 3 pH.

I'm having trouble finding test strips with that range. There are some on amazon, but they have mixed reviews...

 
Reply With Quote
Old 11-12-2012, 09:10 PM   #2
Peppers16
Recipes 
 
May 2012
Nottingham, (UK)
Posts: 205
Liked 7 Times on 6 Posts


I just got some from a foreign seller on eBay for 99p.
Obviously they take a while to arrive but they seem to be accurate (I don't think there's really such a thing as cheap and inaccurate Litmus Paper).

 
Reply With Quote
Old 11-12-2012, 09:11 PM   #3
J187
 
J187's Avatar
Recipes 
 
Jan 2012
, MA
Posts: 851
Liked 96 Times on 74 Posts


The cleaning and sanitizing pod cast from Brew Strong mentions a visual way to tell - color maybe? I forget exactly but I think it's the guy from 5 star chemicals that says it.

 
Reply With Quote
Old 11-12-2012, 09:12 PM   #4
billl
Recipes 
 
May 2012
Raleigh, NC
Posts: 2,308
Liked 379 Times on 320 Posts


It gets cloudy when it starts to go bad.

 
Reply With Quote
Old 11-13-2012, 12:07 AM   #5
chungking
Recipes 
 
Jun 2012
Posts: 310
Liked 10 Times on 9 Posts


I've read on here that whether it turns cloudy or not doesn't matter. It's about the pH. If its cloudy and still under 3pH, it's still good. How true is this?

 
Reply With Quote
Old 11-13-2012, 03:21 AM   #6
billl
Recipes 
 
May 2012
Raleigh, NC
Posts: 2,308
Liked 379 Times on 320 Posts


The PH is the obvious true measure of viability. After all, the microbes can't tell if it is cloudy. However, it does get cloudy as it starts to break down. Will it be good for a week or a month or 2 months after it starts to cloud up? Maybe someone has tested to know for sure

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
PH Test Strips? ultravista General Beer Discussion 3 01-16-2012 03:19 PM
PH Test Strips Apoxbrew Equipment/Sanitation 1 04-02-2011 11:34 PM
PH Test Strips Homercidal General Techniques 13 03-23-2011 04:23 PM
PH Test strips Grinder12000 Equipment/Sanitation 12 11-14-2008 01:06 AM
pH test strips jagg All Grain & Partial Mash Brewing 8 06-24-2008 11:51 PM


Forum Jump