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[AllGoodThings]

So their grey stoppers are ok but the white stoppers are no good?

Looks like Mast E was ok but all my Mast P have the bad ones? Same thing with EQ. 4 out of 5.


View attachment 342959

They're not the best, but unless you're storing them long term, and not keeping them upright, it's not a big deal. Just store them upright and you'll be fine.

 

[BigDadd7]

So their grey stoppers are ok but the white stoppers are no good?

Looks like Mast E was ok but all my Mast P have the bad ones? Same thing with EQ. 4 out of 5 are the white ones.


View attachment 342959

Just keep them stored upright

 

[sionnach]

They're not the best, but unless you're storing them long term, and not keeping them upright, it's not a big deal. Just store them upright and you'll be fine.

Yeah or re-vial them. But FFS, don't throw it out.

 

[BigDadd7]

On another note, I'd love to see some Test C 300 make it into the mix.

 

[AllGoodThings]

Yeah or re-vial them. But FFS, don't throw it out.

Re-vialing is my life for the next several Sundays, and I hate it, by I'm OCD and can't help myself. I decided to keep a bunch of vials with the silicon stoppers for freezing as they have great thermal properties, and I'm curious how they'll compare long term vs other materials

 

[dcfreak]

The clear suck ass

Ooof

 

[dcfreak]

They're not the best, but unless you're storing them long term, and not keeping them upright, it's not a big deal. Just store them upright and you'll be fine.

I have been intentionally stock piling.

Looks like these wont work for that purpose. Guess ill need more of those ones from Farris to fix these too

 

[AllGoodThings]

I have been intentionally stock piling.

Looks like these wont work for that purpose. Guess ill need more of those ones from Farris to fix these too

You may want to consider freezing them. Freezing will dramatically extend the shelf life of oils, by orders of magnitude, and silicon has the one advantage of being more resistant to both high and low temperatures when compared to other stopper materials. I'm doing the math on my total stockpile, projected use over the years, and deciding what gets stored in normal conditions vs what gets frozen. Figuring it all out is more complicated than I expected

 

[readalot]

I have been intentionally stock piling.

Looks like these wont work for that purpose. Guess ill need more of those ones from Farris to fix these too

Or ultra spec. The evacuated ones are really handy. If you keep the oil off the silicone you will be fine. BB incompatible with silicone.

 

[sionnach]

You may want to consider freezing them. Freezing will dramatically extend the shelf life of oils, by orders of magnitude, and silicon has the one advantage of being more resistant to both high and low temperatures when compared to other stopper materials. I'm doing the math on my total stockpile, projected use over the years, and deciding what gets stored in normal conditions vs what gets frozen. Figuring it all out is more complicated than I expected

BB math

 

[dcfreak]

You may want to consider freezing them. Freezing will dramatically extend the shelf life of oils, by orders of magnitude, and silicon has the one advantage of being more resistant to both high and low temperatures when compared to other stopper materials. I'm doing the math on my total stockpile, projected use over the years, and deciding what gets stored in normal conditions vs what gets frozen. Figuring it all out is more complicated than I expected

I am pretty much doing something similar. It is a whole other rabbit hole.

 

[readalot]

You may want to consider freezing them. Freezing will dramatically extend the shelf life of oils, by orders of magnitude, and silicon has the one advantage of being more resistant to both high and low temperatures when compared to other stopper materials. I'm doing the math on my total stockpile, projected use over the years, and deciding what gets stored in normal conditions vs what gets frozen. Figuring it all out is more complicated than I expected

Damn i... love... you.. man. 4x shelf life in fridge not good enough. Freeze those MFers.

Everyone on this board will be dead. Entire planet gets nuked. 159 years later underground BBers (sole survivors who were down in the sewer during blast, ahem, get it? blast) happen upon your nuke powered freezer....Jackpot.

 

[readalot]

BB math

R

Post in thread 'Qingdao Sigma Chemical Co., Ltd (International, US, EU, Canada and Australia domestic'

Aug 17, 2025

Using Q10 factor of 2** (reaction rate doubles for every 10 deg C), then going from 22 deg C (room temp) to 2 deg C (fridge temp) reduces degradation rate by factor of 4.

** only strictly accurate for activation energy = 50 kJ/mol. Rough math.

ASTM F1980 Accelerated Aging Calculator - Quest Engineering Solutions

qes.com

30 vs 50 vs 70 kJ/mol
2.5x, 4.6x, 8.5x
For 4 deg C to 25 deg C

The rule of 2 is just simple rule of thumb. I will spare the details.

Thermal Degradation of Vegetable Oils - PMC

Vegetable oils provide lipids and nutrition and provide foods with a desirable flavor, color, and crispy texture when used to prepare fried foods. However, the oil quality is degraded at elevated temperatures, and thus must be examined frequently ...

pmc.ncbi.nlm.nih.gov

This ref indicates Ea closer to 30 kJ/mol but this is high temp regime. That would result in 2.5x...

• readalot

• 

 

[CHIEF M]

Wanted to start stacking primo but everyone is OOS

 

[AllGoodThings]

Damn i... love... you.. man. 4x shelf life in fridge not good enough. Freeze those MFers.



Everyone on this board will be dead. Entire planet gets nuked. 159 years later underground BBers (sole survivors who were down in the sewer during blast, ahem, get it? blast) happen upon your nuke powered freezer....Jackpot.

No lie, I'm actually in the process of planning a solar/battery powered freezer setup for extended power outages. A "garage ready" (wide operating temperature model) freezer that can be left on the porch will be a huge help in the winter where the lack of sun would be offset by the colder temperatures meaning it has far less work to do. This probably sounds ridiculous to some of you, and I'm fine with that lol

Also, did you mean swole survivor? Okay, I'll see myself out...

 

[readalot]

Also, did you mean swole survivor?

You got me again!

 

[pheno609]

You may want to consider freezing them. Freezing will dramatically extend the shelf life of oils, by orders of magnitude, and silicon has the one advantage of being more resistant to both high and low temperatures when compared to other stopper materials. I'm doing the math on my total stockpile, projected use over the years, and deciding what gets stored in normal conditions vs what gets frozen. Figuring it all out is more complicated than I expected

Have you actually frozen oils and used them after a while? I will likely be freezing and heard that it extends the shelf life, but everything I read was just theory as far as I know. Haven't heard anyone say they have actually frozen oils, I guess until now nobody really had to

 

[sionnach]

Also, did you mean swole survivor? Okay, I'll see myself out...

Goddammit, dad. I hate reddit for what they did to the internet with their ghey upvotes, but I sure as hell wish I could lol smiley on this damn board. Stupid fucking new account.

 

[AllGoodThings]

Have you actually frozen oils and used them after a while? I will likely be freezing and heard that it extends the shelf life, but everything I read was just theory as far as I know. Haven't heard anyone say they have actually frozen oils, I guess until now nobody really had to

I have not personally, no. I might do a test with some... test. Maybe freeze it for a year vs shelf storage for a year of the exact same product and batch, and then send both samples off to Jano. Would be cool to do a few different compounds, and extend it well past a year. If I had a lot more money I can think of some very interesting, and somewhat useful, experiments like that to run.

 

[pheno609]

I have not personally, no. I might do a test with some... test. Maybe freeze it for a year vs shelf storage for a year of the exact same product and batch, and then send both samples off to Jano. Would be cool to do a few different compounds, and extend it well past a year. If I had a lot more money I can think of some very interesting, and somewhat useful, experiments like that to run.

I ordered some chinese oils, I might try to refrigerate a couple and freeze a couple. If they have EO, they might not even crash in the fridge. Lol