alzymologist

joined 2 months ago
[–] alzymologist@sopuli.xyz 3 points 5 hours ago (2 children)

Sure it is not, grain is not fruit after all. I think grain will turn into angry shoggoth if threated with metabisulfite. At least it would be a mess.

[–] alzymologist@sopuli.xyz 3 points 14 hours ago (4 children)

Well, it's bad news, all those super-processed products almost always are treated with metabisulfite or something close enough, and only wine and a few other products require it to be listed on the label. It's pretty much treated as part of detergent for washing fruits. Completely unjustified as product is sterilized later in turning it into extract, but it is simpler to keep buying this historically accepted mild bleach and treating all fruits with it anyway. Maybe increases their storage time in shipping pipeline. Something I do not wish to think about in great detail, for my first lab in Finland was in a rented fruit storage bunker and I washed it and dismantled control equipment myself. Could have been WW2 nazi camp facility for what it was worth.

[–] alzymologist@sopuli.xyz 3 points 15 hours ago

In my childhood, we had these kinds of root vegetables sliced and caved in on one end, and a spoonful of honey was placed on top and in the cavity. Somehow this sped up conversion to overnight, and it was a treat. I guess, similar process could be used to convert them for brewing.

Although the whole idea sounds a bit like potato for vodka. Nothing wrong with that too, but the flavor might me less than interesting in the end. Worth trying I guess. I wish I had some of those now, not unripe ones from the store.

[–] alzymologist@sopuli.xyz 3 points 15 hours ago (6 children)

One of the biggest suspects in this cyser story is metabisulfite treatment that might have happened to apples. I do not know the exact mechanism, but lots of people complained about headache if that was used with apples (and many recipes call for its use, IMO totally unjustified) or in apple juice in factory. Same thing about grapes. Differential is quite clear.

[–] alzymologist@sopuli.xyz 3 points 20 hours ago (1 children)

Steamings damage corks, especially sterilizing ones. Their number should be minimized. Now for bottling, I do not think it is important for corks to be sterile, as anything worth of corking will kill whatever might be living on cork surface. Sanitized is enough.

Now repackaging is another beast. Once packaged, corks are left for indefinite time, and if inoculated with something that might survive on bare cork (pretty much this means fungi), it might become a nice growth media. Then, steaming might kill it (and if it is not pressurized, that would not kill spores), but it will not clean it from the cork.

So, on small scale, it is not very important, some corks might get spoiled occasionally. But 6000 is no small scale lol.

[–] alzymologist@sopuli.xyz 7 points 1 day ago (1 children)

What if we apply negative pressure?

[–] alzymologist@sopuli.xyz 9 points 2 days ago

This should promote matrix, not signal

[–] alzymologist@sopuli.xyz 7 points 3 days ago (3 children)

Only proper wine corks are good for proper mead. I mean, yeah, there is place in our life for fermented honey solution that is consumed fast, but proper mead should age like expensive wine. It's more noble than wine, after all!

Bottling mead thus is always a challenge. I've tried all kinds of methods, or course beer caps - and especially swingtops - just start leaking at best in few years. Compouns corks too, and, being low grade stuff, they are often stinky themselves. The only exception are belge bottles and fat compound corks for braggots, if corked belge way, they occasionally leak some liquid at first, but then seal themselves for good.

Even higher grade corks tend to degrade over the years. Highest grade does not degrade. I've just negotiated a sample of fancy corks from Portugal, about 1eur/cork, highest grade. They look really good and will probably work, but min order is 6000 and they have to be repackaged sterile. Good thung I have sterile line, but 6000? It's 10x more than all bottles I have now! I could place them in my webstore in small bags? Would someone be buying them?

I was looking into alternatives, but nothing so far looks promising. I'm thinking about turning other wood types on a lathe, but that will probably result in a disaster.

[–] alzymologist@sopuli.xyz 3 points 5 days ago

So ok, these are just quasiparticles. Yes, we could have quasiparticles that behave like actual particles. Yes, it's just an abstraction. Yes, we can go batshit crazy in abstraction space and come up with anything.

This reminds me how some folks in ScientificAmerican modeled black hole with a vortex in water and found supersonic wave, which brought them to conclusions about possibility of passing through event horizon in actual black hole. bah.

In other words, when do I get some money to build a quantum quasiparticle computer and finally hack elliptic cryptography?

Though, as Rice alumni, can't deny still always awesome publicity of that university.

[–] alzymologist@sopuli.xyz 5 points 5 days ago

Vangers 2.0

[–] alzymologist@sopuli.xyz 4 points 6 days ago

Usually not worth it; you'll need to gently distill (in proper glass, this is important) the beer like it is done for ABV measurement and measure density of leftovers. Or do quantitative chromatography. You've got to know hands-on chemistry real well for this. Let me know if you need the procedure.

[–] alzymologist@sopuli.xyz 2 points 1 week ago

Only once I've got yeast staggered by lemon juice addition, and that happened in secondary fermentation. If there is enough sugar (and, if I recall correctlt, there was added sugar in these ferments), they'll keep going. Acidity that slows them down for real is much higher, like what acetobacteria do. Yeast still thrives in bread starters and combucha, and those are sour!

 

This time of year one thing happens that has absolutely no relation to holidays: late berries (cranberries, lingonberries, rowan) spent enough time in frozen state to develop flavor worth of melomels. A gift for self in several years, something to be safely forgotten until bottling and then again.

Of course, I've kept those in freezer, as I don't want to fight all the birds for rowans (note: they still had plenty, I'm not greedy) and I'm not that good at digging frozen forest floor for the rest.

 

I've been doing homebrewing together with my wife for quite some time, and at some point we started collecting a yeast library. There was a point in my life where we had an opportunity to start a company that does something we enjoy; we've tried starting an analytic lab for microbreweries (as we are both actually doctors in chemistry), but it didn't take off at all due to lack of demand (and COVID breakout), we had to switch to doing whatever brings cash (of course IT stuff it was, mostly, I feel ashamed).

But yeast library kept growing. We've decided to give it another try, got permissions from the Big Brother, and rolled out a small production!

We've deployed a webshop at https://store.zymologia.fi/ , there is other stuff that's kind of a byproducts of whatever other things we've had to do to get along (some of it was and is fun after all). The idea is that I don't think it makes sense to scale it up any further, we just have proper but minimalist equipment to do sterile pure culture cultivation, not large tanks, only glass that could be properly washed and autoclaved, and full-grain growth media because I hate smell of extract (and proper preparation of wort is about as difficult as getting extract clear enough for yeast making). Anyway, it's an actual commercial operation, I'm curious to see how far we can go with such attitude and whether it would become profitable or just another "make the world a bit happier place".

Most of yeast on sale is listed as "not available" which means we'll just have to wake them up, feed them up to speed, and package, which takes up to 2 weeks, which is less than beer recipe planning and preparation phase, at least for me. I don't think keeping an inventory with live yeast is a good idea anyway - many times I've had sad starved liquid yeast fished out of fridges in stores only to see lags on 30+ hours. That's also why I'm reluctant to go to resalers, though I might try it.

What I really think should be happening is yeast exchange. I don't want to keep things any more commercial than the general Finnish anti-soviet spirit tells me, so let me propose this idea: yeast growth takes time and effort, but sharing is caring - I'd be happy to share a swab of yeast culture with anyone who comes to our place (just tell me when, of course most of the time there is only yeast in the lab) with their own sterile slant carrier - I won't be shipping these, for I'm absolutely certain delivery services will mess it up, and also I (or whoever would be hanging around at that time) won't get to have a chat with you. (Please do this if you know what you are doing though, storing culture and scaling it to a starter is a bit more complicated than just making a starter, mistakes multiply badly with exponential growth and it's not very feasible to propagate without going through single-cell plating or something similar. If you don't know what that means, learn it first, or it's worth just buying a ready liquid yeast, the great purpose of sharing culture material is to let other people have it in their library, which would require you to go through single-cell propagation at least a few times a year).

We also have an opensource (all we do is opensource, I believe in the idea) piece of software to keep yeast lineage in check here: https://github.com/Alzymologist/yeast It's a bit underdocumented at the moment to say the least, but it uses Bayesian inference to analyze yeast parameters and catch mutations, and it was able to detect deviations before we've tasted the outliers blindly, I think it's quite cool too. I don't think anybody did this before.

Sorry for self-advertisement, I've asked moders if this sort of thing is OK here before posting. I hope this is interesting enough to be worth being here.

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