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So for Hardness testing, how does the following procedure look: Take a 100mL room temp water sample and buffer with NaOH to 10.1 pH Add Eriochrome Black-T indicator (how much?). Sample will turn Red. Titrate with 0.01 M EDTA until sample turns blue #mL of EDTA used x 10 = Total Hardness...

Usually use a 5L erlenmeyer for 12 gallon batches. When growth is complete, I do a cell count, chill and decant and then only pitch what I need. I have a 6L but it's only 400 mL bigger to the mouth compared to the 5L. The mouth is smaller on the 6L since it has a pour ring so it glugs when...

I too did a batch with 1318 on 2/14. Mashed at 145F for 60 minutes then 160F for 15 minutes to finish conversion. Pitched at 64F and held for 36 hours then linearly ramped over 3 days to 70F. 1.0585 OG down to 1.010 as of last night so I dryhopped and capped since there was no more off...

AJ, thank you for looking at my observations. I will share any results. It could just be a whirlpool utilization or hop selection issue but it coincides with using water "knowledge" or lack thereof. Nate

2 examples here. Both Double IPAs, based on the Heady Topper Clone recipe found on this forum, 12 gal post boil. The first time I brewed it, I used Pearl base and no acid in the mash. Mash pH of 5.23 with just the Calcium in the water (135 ppm), added some Lime which resulted in 5.32 pH (168...

Palmers book = Brewing Elements Water. I was surprised to learn that the more acid added, the less calcium precipitates. Below is the example for 100 ppm. The charts come in increments of 50 ppm. Hope you don't mind I posted it AJ, found it in a google image search...click to enlarge: I...

Calcium Saturation with Phosphoric

What temp did you mash this one? Looking forward to your tasting notes. I'd like to give this strain a shot.

Thanks for your experience. What percent simple sugar of the grist gets you to 80% ADF @ 147?

What kind of attenuation are you all getting from 1469? Please list your corresponding mash temps too. Thanks!

Just a heads up for anyone who wants to order acids like this from Cynmar...they require a business address and paperwork showing your business's Federal Employer Identification Number for shipping. They wouldn't ship to my house.

I like the sound of that. Thanks! Why does the procedure I linked in the first post have you standardize a .02N Solution of H2SO4 then? Less likely to overshoot?

Don't worry about it AJ. I had to place an order at cynmar and added some Sodium Carbonate to it.

Thanks AJ Ha, looks like I can make Sodium Carbonate from Baking Soda. Any thoughts on making a stock solution in water and measuring the concentration by specific gravity? Pretty neat that I can possibly measure the alkalinity of my water at home with materials and tools I already have for...

Thanks Martin. I just remembered I have some Sulfuric acid at home already but not Sodium Carbonate. Can I store Sodium Carbonate in water and measure the gravity to get the concentration so I don't have to bake it and cool it in a desiccator? Kind of like how I store my CaCl2 now? Is a 1mL...