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I have had pretty good luck using Apex Munich Lager yeast but I am also interested in trying the Berlin Lager yeast and maybe the Mexican Lager yeast. I am tempted to buy a brick based on my success with Apex Munich Lager and Apex San Diego yeast. My understanding is the Munich Lager yeast is...

I talked to the retailer but just to give him a heads up about the problem. What I got was not their fault so I am not going to ask them for compensation. We discussed the issue and we don't think the wholesaler/repackager will ever admit responsibility because of liability. The last email I...

I think I pretty much confirmed I got 85% solution acid. I brewed yesterday and entered 85% in my water software and the mash pH came out as predicted. The batch I made that prompted this thread never fermented below 1.032 and tasted so bad I dumped the whole batch. Not salvageable.

I bought it about 8 weeks ago. It is hard to say if they still have any more. I am going to call the retailer today and talk to him about what happened.

A lot of my brewing friends routinely use 75% solutions. Out of the 4 bottles I bought at the same time I have checked 2. If all 4 are high % solutions I have enough acid for life! I am going to dilute the acid I got and see if I get the predicted results in terms of gravity and compare my...

One good aspect of this issue is that I have gained a tremendous amount of information and knowledge from some very smart and experienced people!! Thank you all for your responses and sharing of information! A lot of what is on the internet could be considered crap but this kind of content is...

I deleted the picture that showed the distributor. Like I said in that post, they are generally a good supplier and may not be their fault. The email the next day told me to check my meter. I sent them another email this morning but I suspect you are right about them not admitting it. Also...

This is no lot date on the bottle. I called the distributor right after I got the low reading and they said they just repackage what they buy and insisted by email the next day that purchasing did buy the right concentration and that my meter was wrong. I am going to contact them again but I...

I tried to measure it with my refractometer and it wouldn't even register. Double checked my refractometer with water, spot on. I measured out 10 mL and it weighed 16.18 gms. I make ammunition and I used a powder scale so I am pretty sure about the accuracy. I still have both my hands. Lol...

It is definitely undrinkable right now. Like I said previously, I have brewed this batch many time before. If the 4.2 pH mash reading was correct, which I think it is, I don't think this can be saved. But, I have some amylase enzymes and I will give it a try. Thanks! Nothing to lose.

I used viscous as a relative term comparing to the previous bottle of 10% acid I had. I have worked with ink and paint in the past when I had to measure viscosity all the time. I have zahn cups but didn't measure the actual viscosity.

I will google this. I am a retired engineer so I am used to researching problems and figuring things out.

That is a good page I found almost immediately in my web search. Thanks!

I attached a picture of the acid I got measured with a hydrometer. You can see the bottle in the picture. Obviously, thicker than water. I am going to measure the density using an accurate scale I have and a graduated cylinder. Someone mentioned Steffen' Chemistry pages and am going to...

Thank you all for the responses. I really appreciate it! Follow up - I tested and tasted the batch today and the results are outside my 25 years of experience. As I mentioned earlier, the mash pH measured 4.2. I did perform a calibration and it wasn't off very much. I mentioned that my...

Thank you. I will check into that. I appreciate the resonse!

I recently received some phosphoric acid that was labeled 10%. When I was adding some to my mash water I noticed it looked different but I used the brew software recommended amount anyway. It was much more viscous than the previous bottle that I had gotten a while ago. When I measured my pH...

I received some 10% solution phosphoric acid from a local distributor. It looked more viscous than the previous bottles. But, trusting the supplier I put the same amount as used previously in my water solution. I have a Thermoworks 8689 meter that I have had for a while and it has been giving...

As you are probably aware....brass can contain some lead. That is why I always try to use SS. I don't know if the acidity would increase lead leaching. I apologize if I am sounding preachy. The included link is a few of many discussing lead in brass...

Question for Martin B. You said "The pH SHOULD be significantly lower than your targeted pH at the 15 minute mark." How much does it typically increase. Lately I have been hitting BruNWater numbers but I have been checking at 15 minutes. So I guess I am wondering how much I am off at the end...