Caculating amount of phosphoric acid

[TheGatekeeper]

Hello Nexians,

Been part of the community for years, but recently changed to a new username.

If anyone could help me out with this basic calculation it would be amazing I have 85% food grade phosphoric acid and am planning on using the 2nd version of the hummingbird tek, posted below, for a cold water extraction. In the tek they're using 10% phos, so by my basic calculation I would be adding only 3 drops of 85% phos per 1/2 gallon of H20. Or would it be more suitable to use more water to start with and now using slightly more than 3 drops of phos?

Hummingbird

First way is pretty much a traditional brewing , but with phos.

Now, 20 drops of 10% food grade phosphoric acid in 1/2 gal of distilled water = ph3... Please be sure to get that right!

So, place the herbs in the solution at a ratio of at least 20/1 solution/herbs, (by ounces).

Soak 1-3 days (the longer the better), in mason jar, shake vigorously as much as is practical, (several times a day).

Then simmer 3x (no boiling) for three hours or so, each simmer.

For 2nd simmer, use 1/2 as much acid, for 3rd use plain distilled h2o.

If you like, make the 3rd simmer longer, as you feel.

Each extraction is filtered through a permanent wire mesh coffee filter, then put in fridge for at least a day to completely settle.

Then carefully decant, leaving the sediment, combine, and gently reduce to 4-6 oz, total, per dream serving.

This tec has (in dreams) produced exceptional results with vine/leaf combo.
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2nd Tek - Long cold soak for rootbark (powdered, by dreamer)

Same solution, same ratio.

1st soak, 4-5 days in fridge shaking often. Filter, place in fridge to settle.

2nd soak, 4-5 days in fridge, with 1/2 the amount of acid, shaking often. filter, place in fridge to settle.

3rd soak (might be optional, it's pretty pale) 1-2 days, plain distilled water, shake, filter, place in fridge to settle.

After all the extractions have completely settled, VERY carefully decant, combine, and gently reduce to 2-3 oz per dream serving. Then in a dream, drink after drinking a caapi brew (2-3 oz) made with the other tek.​

Lets solve this together :thumb_up: Thanks in advance

 

[TheGatekeeper]

Well I've figured out that when using distilled water at a ph of 7.0 that

0.001M solution of phosphoric acid have pH 3.0, that means around 0.06 mL added to 1 liter of distilled water.

1 drop of water gtt Metric = 0.050 mL

1 Gallon [Fluid, US] = 3.785 liters, 1/2 gallon = 1.892 liters

So I'll start with 2 drops of 85% phos per 1/2 gallon of H20 and when my ph tests strips arrive I will be able to see how good my calculations are.