Last days to enter the BrewHardware Giveaway!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Question about Iodophor - What is PPM?
Reply
 
LinkBack Thread Tools
Old 12-04-2013, 12:03 AM   #1
saeroner
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2013
Posts: 169
Liked 12 Times on 10 Posts
Likes Given: 69

Default Question about Iodophor - What is PPM?

I know I must have forgotten everything learned in high school... But, what the heck is up with these directions?

"For 12.5 ppm titratable iodine: add 1/4 oz per 2 1/2 gal water OR 1 tsp tp 1 1/2 gal water"

OR

"For 25 ppm titratable iodine: Add 1/2 oz per 2 1/2 gal water"

Google says ppm = parts per million

okay so where do I go from here.

how do i figure out what PPM i need to go by?

__________________
saeroner is offline
 
Reply With Quote Quick reply to this message
Old 12-04-2013, 12:12 AM   #2
FatDragon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2013
Location: Wuhan, China
Posts: 740
Liked 106 Times on 87 Posts
Likes Given: 194

Default

12.5 ppm is effective for no-rinse sanitizing. 25 ppm would potentially be in the range where you'd need to rinse.

__________________
Primary: Nothing
Bottled: Imperial Black RyePA, Kindergarten Oatmeal Stout, Scotch-Oaked RIS 1.1, 米酒 (rice wine)
Coming Up: I Can't Believe It's Not Bitter! IPA 1.1 (Session Edition)
FatDragon is offline
saeroner Likes This 
Reply With Quote Quick reply to this message
Old 12-04-2013, 07:58 PM   #3
processhead
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
processhead's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Nebraska
Posts: 715
Liked 110 Times on 85 Posts
Likes Given: 5

Default

PPM is "parts per million" and is the ratio of the iodophor to the water in a mixture.

To get to the prescribed concentration you can generally follow the directions on the bottle using common units of measure like gallons, fluid ounces or teaspoons.

To boil it down to the basics, just think of it as 1 ppm concentration equaling 1 drop of iodophor added to 999,999 drops of water.

__________________

How hard can it be?

processhead is offline
 
Reply With Quote Quick reply to this message
Old 12-05-2013, 08:33 PM   #4
sumbrewindude
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2013
Location: , Wisconsin
Posts: 840
Liked 119 Times on 95 Posts
Likes Given: 10

Default

PPM = Parts Per Million.

12.5ppm is no rinse sanitizer, sterile in 30sec, used with 1% solution
25ppm is to be used with 0.7% solution, if memory serves *not sure, I don't use this value*

Easiest way I found to make sure Idophore hits 12.5ppm is a conversion to mL, where 3mL into one US gallon is 12.5ppm (it's actually a little higher than 12.5, but it's dang close and easy to measure). Double that for 25ppm. I use a medical syringe in mL.

I rarely, if ever, need more than 2 gallons of sterilizer.

__________________
sumbrewindude is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2013, 12:34 AM   #5
FatDragon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2013
Location: Wuhan, China
Posts: 740
Liked 106 Times on 87 Posts
Likes Given: 194

Default

Quote:
Originally Posted by sumbrewindude View Post
PPM = Parts Per Million.

12.5ppm is no rinse sanitizer, sterile in 30sec, used with 1% solution
25ppm is to be used with 0.7% solution, if memory serves *not sure, I don't use this value*

Easiest way I found to make sure Idophore hits 12.5ppm is a conversion to mL, where 3mL into one US gallon is 12.5ppm (it's actually a little higher than 12.5, but it's dang close and easy to measure). Double that for 25ppm. I use a medical syringe in mL.

I rarely, if ever, need more than 2 gallons of sterilizer.
Be careful about following someone else's numbers. My iodaphor is significantly weaker than that out of the bottle, the mfg. recommends 3.5-4.5 grams per liter. Of course, it also costs $1.50 for half a liter, probably much less than the stuff that does the trick at 1/4 the usage rate.
__________________
Primary: Nothing
Bottled: Imperial Black RyePA, Kindergarten Oatmeal Stout, Scotch-Oaked RIS 1.1, 米酒 (rice wine)
Coming Up: I Can't Believe It's Not Bitter! IPA 1.1 (Session Edition)
FatDragon is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2013, 04:30 AM   #6
sumbrewindude
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2013
Location: , Wisconsin
Posts: 840
Liked 119 Times on 95 Posts
Likes Given: 10

Default

Very true.

Always keep an eye on the amount of active iodine in the solution. That's what ultimately determines how much you need to add to reach the effective PPM in solution.

1.50 USD for a half liter? Yeah, your's was cheaper than my 4oz bottle

__________________
sumbrewindude is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2013, 05:27 AM   #7
FatDragon
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2013
Location: Wuhan, China
Posts: 740
Liked 106 Times on 87 Posts
Likes Given: 194

Default

Quote:
Originally Posted by sumbrewindude View Post
Very true.

Always keep an eye on the amount of active iodine in the solution. That's what ultimately determines how much you need to add to reach the effective PPM in solution.

1.50 USD for a half liter? Yeah, your's was cheaper than my 4oz bottle
Sometimes it's nice to live in China. I buy it from an online brewshop here. It's marketed to the medical industry, but it does the trick. I still wish I could get StarSan here, though; I'd be willing to pay a premium, but it's just not available.
__________________
Primary: Nothing
Bottled: Imperial Black RyePA, Kindergarten Oatmeal Stout, Scotch-Oaked RIS 1.1, 米酒 (rice wine)
Coming Up: I Can't Believe It's Not Bitter! IPA 1.1 (Session Edition)
FatDragon is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2013, 01:55 PM   #8
processhead
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
processhead's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Nebraska
Posts: 715
Liked 110 Times on 85 Posts
Likes Given: 5

Default

Quote:
Originally Posted by FatDragon View Post
Sometimes it's nice to live in China. I buy it from an online brewshop here. It's marketed to the medical industry, but it does the trick. I still wish I could get StarSan here, though; I'd be willing to pay a premium, but it's just not available.
What does the food processing industry use over there for sanitizing equipment and work areas?

It seems like the commercial food processing industry would have suppliers for these types of cleaning products, (acidic cleaners with pH modifiers)
__________________

How hard can it be?

processhead is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2013, 02:13 PM   #9
Pappers_
Moderator
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
Pappers_'s Avatar
Recipes 
 
Join Date: Jan 2009
Location: Chicago
Posts: 12,229
Liked 1072 Times on 746 Posts
Likes Given: 2164

Default

Quote:
Originally Posted by saeroner
I know I must have forgotten everything learned in high school... But, what the heck is up with these directions? "For 12.5 ppm titratable iodine: add . . . 1 tsp to 1 1/2 gal water"
This is what you want. To make your no-rinse sanitizing solution add 1 teaspoon of Iodophor to 1.5 gallons of water. I usually double it and make 3 gallons and add 2 teaspoons. I love Iodophor, it's easy to use, easy to measure, straightforward.
__________________
http://www.singingboysbrewing.com

My wife's book "Uncovering Lives: Discovering One Immigrant Generation's Secrets and Lives of Forgiveness, Grace and Healing"


"People who ask a question want a conversation as much as they want an answer." b-boy
Pappers_ is offline
plumber_bob Likes This 
Reply With Quote Quick reply to this message
Old 12-06-2013, 06:21 PM   #10
smyrnaquince
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2010
Location: Concord, MA
Posts: 569
Liked 18 Times on 16 Posts
Likes Given: 3

Default

Why do you guys make up so much Iodophor solution? I make 2 pints in a spray bottle and spray anything I need to sanitize. The surfaces just need to be wetted, not soaked.

__________________
smyrnaquince is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Iodophor question winstonofbeer General Beer Discussion 4 05-26-2010 09:07 PM
Iodophor Question mike1978 Equipment/Sanitation 6 01-10-2010 07:37 PM
Question About Iodophor beerlover_NZ Equipment/Sanitation 3 12-03-2009 06:54 PM
Thank you to all and iodophor question polamalu43 Beginners Beer Brewing Forum 2 03-27-2008 03:52 PM
Iodophor Question jezter6 Equipment/Sanitation 3 10-05-2007 09:17 PM



Newest Threads

LATEST SPONSOR DEALS