NaOH is Sodium Hydroxide.
Na: sodium ; OH: hydroxide.
It's readily available at most hardware stores, just make sure to buy a product that only contains Sodium Hydroxide (such as Red Devil Lye) to make the dillution rate easier to figure. If you do a search for the MSDS of the bottle of...
The copper reacted with the PBW and made a verdigris solution (technically it's more like an Egyptian Blue solution since alkali was used). As long as the surface of the copper is not blue/green you can continue using it (basically, rinse any remaining verdigris from the surface of the chiller)...
I just had the first bottle of my first batch of this kit.
It's not the best IPA I've ever had.
It is a solid IPA though, and I would not have been dissapointed even if I had paid Superbowl-bar-prices for a bottle.
I will make it again.
True enough, but...
https://www.reddit.com/r/Homebrewing/comments/2sgzw4/psa_regarding_freeze_distillation_for_us/
In other words; make darn sure that you don't exceed 24% ABV (the allowable limit for wine and cider), or 14% for mead.
I made orange wine in college. This was not done on-purpose, but it did get purposefully consumed. Juice made from unpasturized concentrate can ferment in the refrigerator if you forget about it for a few weeks.
Please only let this be your last post in this thread, and not in the forum. Asking questions is the most important part of learning. Ignorance and fear only grows when those with knowledge and evidence remain silent.
It's much more likely that you'll be impacted by the negative effects of alcohol than you will by any negative effects of excess copper ingestion.
Once again...we live such a good life in developed nations that we end up worrying about crap that has already been proven to not have any...
You could say that we are all chemically dependent (in the most literal of senses). :D
Speaking of cider;
Who here has ever looked at what an apple is made of (including organically grown apples)?
If you stop using chemicals you'll, quite literally, die.
Please don't stop using chemicals.
Please do continue to learn about chemistry, and how toxicity is related to dosage and use.