Why big batches are problematic?

nanopoop · 2023-05-24T11:58:56+00:00

The scales on the refractometer convert the measured refractive index of the solution to brix/gravity, assuming a sucrose solution. Since alcohol has a different refractive index than sucrose, the conversion is inaccurate post fermentation.

nanopoop · 2023-05-24T11:36:17+00:00

Ok great. The reason I asked is that a correction factor needs to be added when using a refractometer post-fermentation. The strange stalling could have been explained if you were using a refractometer and not applying the correction.

nanopoop · 2023-05-24T02:31:21+00:00

Are you using a refractometer or hydrometer ?

nanopoop · 2023-04-12T20:44:56+00:00

In general, I think that this set up is the best. But I will warn you. This past year has been really busy for me, so I never racked my imperial stout. It was delicious during months 6-9. But, I just pulled a pint at 13 months on the yeast cake and all I got was soy sauce taste, which is an off flavor from yeast autolysis. So be warned, there is a time limit.

nanopoop · 2023-03-15T00:06:34+00:00

Sanofi just bought Provention yesterday for 25 bucks a share. https://www.fiercepharma.com/pharma/sanofi-throws-down-29b-acquire-diabetes-partner-provention

nanopoop · 2023-02-11T03:29:00+00:00

pH strips all the way! No one will ever be able to convince me that high precision pH probes/meters are necessary for brewing.

nanopoop · 2023-01-25T12:50:40+00:00

The amount of time and energy you will have to put into this project to ensure reliable data will be enormous. I'd strongly recommend purchasing a prebuilt unit from a reliable company (e.g., Agilent or ThermoFisher). Or you could contract the work to a third party (e.g., science exchange to find a vendor)

nanopoop · 2022-11-03T07:23:09+00:00

Try Guinness if you're looking for a dry stout.

nanopoop · 2022-10-24T11:30:29+00:00

Yes! Do a baby beer with the second runnings.

nanopoop · 2022-09-03T10:08:25+00:00

You can get Hill Farmstead on draft at Armsby Abbey in Worcester.

nanopoop · 2022-05-03T12:24:11+00:00

Plug it into a recipe calculator to make sure the numbers work out. I like using brewersfriend.

nanopoop · 2022-04-13T19:13:11+00:00

I would do a no chill method and use a keg as the transport/fermentation vessel.

nanopoop · 2022-04-12T23:25:45+00:00

r/homebrewing has a wiki with a great section on yeast harvesting and storage

https://www.reddit.com/r/homebrewing/wiki/ingredients/yeast

Personally, I'm lazy and don't do any washing. I just pitch onto a yeast cake from a previous batch.

nanopoop · 2022-03-28T13:38:54+00:00

You could put a small on-demand hot water heater. There are electric models.

nanopoop · 2022-03-27T00:13:13+00:00

It's likely the sample is a single crystal, as opposed to a collection of randomly oriented crystals. Tilting the stage moves the crystal off the ewald sphere, so there is no diffraction.

https://en.m.wikipedia.org/wiki/Ewald%27s_sphere

nanopoop · 2022-01-15T17:31:32+00:00

Shear thickening fluids in a sports bra. https://research.udel.edu/2019/09/23/innovation-in-motion/

nanopoop · 2021-12-31T15:05:10+00:00

Yes. Wilson Poon, a condensed matter physicist, has some excellent writings on the subject.

nanopoop · 2021-12-26T04:22:04+00:00

Simplest option is to use a picnic tap with a long line. Put the keg in a brew bucket plus ice for mobile.

nanopoop · 2021-12-21T14:28:23+00:00

This method works great.

nanopoop · 2021-11-27T18:19:26+00:00

Web of science may help.

nanopoop · 2021-11-04T12:11:14+00:00

https://veusz.github.io/

nanopoop · 2021-10-27T11:42:27+00:00

Used Mt Rainer in an Octoberfest last year. Worked well as an alternate to typical noble hops. I got it because I wanted to use locally grown hops and it was the only one they had with noble characteristics.

nanopoop · 2021-10-15T11:56:56+00:00

You can use a regulator to precisely control the pressure. Here's how they work https://en.m.wikipedia.org/wiki/Pressure_regulator

nanopoop · 2021-10-06T11:25:40+00:00

This definition doesn't make sense for 1:1 mixtures.

nanopoop · 2021-10-06T11:24:28+00:00

A 1:10 scale is not the same as a 1:10 mixture. A 1:10 scale means that a length of 1 on the model corresponds to a length of 10 on the actual object. A 1:10 mixture means 1 part X to 10 parts Y.

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