how much K-meta for a spray bottle sanitizer?

[shanek17]

I want to make up a spray bottle sanitizer but im wondering how much K meta to add into it. my bottle is 455ml / 16 oz, so how much should be going into this bottle for effective sanitizer? and Realistically how long can it be stored in the spray bottle and still be effective. thanks

 

[Runningwolf]

The ratio is 3 tablespoons per gallon. I usually mix it up that way and then replenish my spray bottle as it needs it. It can last for months.

 

[shanek17]

The ratio is 3 tablespoons per gallon. I usually mix it up that way and then replenish my spray bottle as it needs it. It can last for months.

okay is that canadian or us gallon?

 

[Runningwolf]

US measurements that is

 

[TonyP]

I agree it will last for months, which may be sufficient for 16 oz depending on how often you use it. If you want longer term storage, I suggest keeping it in glass. There was a recent forum on Star San versus K-meta that may provide some information on K-meta storage.

http://www.winemakingtalk.com/forum/f3/star-sans-k-meta-pros-cons-30882/

 

[Duster]

Adding some Citric Acid will lower the PH and make it much more effective

This is true, your nose will tell you that the first time you do this, I have been told that Citric Acid will also shorten the shelf life? Does anyone know if this is true?

 

[shanek17]

Adding some Citric Acid will lower the PH and make it much more effective

interesting, but isnt k meta already a pretty powerful sanitizer? I mean when i get a whiff of it my nose agrees its powerful.

and is Is there any safety concerns about adding citric acid it being too acidic?