Barbicide Questions

So as the subject suggest I have some questions about the product.

First, how long does any object need to be exposed/soaked for it to be effective of its full potential?

Second, how long does an unmixed/unused open concentrate last? Is there a expiration date via some code on the bottle that can be deciphered?

Third well I found my answer on there faq section so I will post it here for others - how long should you keep a mixed product before replacement? Daily when used with submerged items. Additionally any time it is mixed incorrectly or has otherwise been contaminated.

You may already have a bottle to review, if so, sorry for the photos. I use exactly as the directions describe. I do not have to use it often,,, only after I have saved a vintage from a shelf somewhere & cleaned it first. Then it gets the Barbicide treatment. I discard the mixture then. I have kept an unused'unmixed bottle for about a year, in the dark medicine cabinet.

I don't know at the moment where the expiration date is,,, as these are photos from when I had a bottle on hand.

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I cannot find a date on my bottle which is the same as John's and was also purchased at Sally's.

The only code on the bottle is 308Q1.

The plastic seal that is removed with the first use has writing (web site and something else) but the info was tossed.