My glass jar aging technique
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- TwoSheds
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My glass jar aging technique
Wanted to share my (now verified successful) glass jar aging technique with folks. There's nothing new here, but rather a combination of a couple ideas that have been around that suit my tools and materials.
I'm using half gallon mason jars. I can get 6 for about $14 USD which keeps me below $5 per gallon for storage. Cheaper than anything else I can find.
For lids I've cut discs out of 1/4" white oak. The lid oak isn't anything special, just commercially available white oak. I will age these upright so there will be little liquid contact with the lid and they don't need to be liquid tight.
I used a 3 1/2" hole saw with the center pilot drill removed. You need to keep the hole saw from wandering so I cut a hole in a piece of scrap and clamped that on top of my workpiece. The hole saw drops into the scrap piece which keeps it from wandering or chattering much during the cut.
I then use a router bit with a bearing to thin out the edges of the discs so the pop up through the jar rings. This is by far the trickiest part, but doable with care if you're comfortable with your equipment.
I cut fingers of a used bourbon barrel to put in the jars for liquid contact. These are toasted and charred as desired, but the lids remain raw.
My theory was that the fairly thin lids would breathe well and give up a reasonable angels share while the oak finger takes care of the flavor and adsorption. These pictures show the change in level in the jars at the 6 month mark:
I failed to take pictures, but the drop was a little less than twice that this week at right around the year mark.
At one year with this method all the spirits have improved considerably, even against the 'control' I had with a standard lid on it. Some I'm considering done and moving to bottle, others are getting a regular lid to continue aging with the oak. I think the angels have had their share!
The discs did warp from uneven moisture contact but they are thin enough that most can be held flat on the jar with just the ring, so most will be reused. Since they don't have direct contact with the spirit I'm not even worried about switching them between different sprit types.
While I'm hoping to make some badmo or similar barrels in the future, this has provided a quick-and-dirty way to get oak contact and air exchange on the cheap. On top of that, the half gallon size is a good size to experiment with, but I also have some wide-mouth quart and pint sized jars that I've used the lids on for even smaller experiments.
Hope this helps others stir up ideas as others have helped me!
TwoSheds
I'm using half gallon mason jars. I can get 6 for about $14 USD which keeps me below $5 per gallon for storage. Cheaper than anything else I can find.
For lids I've cut discs out of 1/4" white oak. The lid oak isn't anything special, just commercially available white oak. I will age these upright so there will be little liquid contact with the lid and they don't need to be liquid tight.
I used a 3 1/2" hole saw with the center pilot drill removed. You need to keep the hole saw from wandering so I cut a hole in a piece of scrap and clamped that on top of my workpiece. The hole saw drops into the scrap piece which keeps it from wandering or chattering much during the cut.
I then use a router bit with a bearing to thin out the edges of the discs so the pop up through the jar rings. This is by far the trickiest part, but doable with care if you're comfortable with your equipment.
I cut fingers of a used bourbon barrel to put in the jars for liquid contact. These are toasted and charred as desired, but the lids remain raw.
My theory was that the fairly thin lids would breathe well and give up a reasonable angels share while the oak finger takes care of the flavor and adsorption. These pictures show the change in level in the jars at the 6 month mark:
I failed to take pictures, but the drop was a little less than twice that this week at right around the year mark.
At one year with this method all the spirits have improved considerably, even against the 'control' I had with a standard lid on it. Some I'm considering done and moving to bottle, others are getting a regular lid to continue aging with the oak. I think the angels have had their share!
The discs did warp from uneven moisture contact but they are thin enough that most can be held flat on the jar with just the ring, so most will be reused. Since they don't have direct contact with the spirit I'm not even worried about switching them between different sprit types.
While I'm hoping to make some badmo or similar barrels in the future, this has provided a quick-and-dirty way to get oak contact and air exchange on the cheap. On top of that, the half gallon size is a good size to experiment with, but I also have some wide-mouth quart and pint sized jars that I've used the lids on for even smaller experiments.
Hope this helps others stir up ideas as others have helped me!
TwoSheds
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Re: My glass jar aging technique
Looks like a solid repeatable process for those who can't get PTFE lid liners. I like it.
I just use a lid liner with a pin hole in it on jars. I've not done any experiments to see what my angel share is though.
for gallon jugs, I use a cork stopper with a slit in it. Give em a whiff and a shake from time to time and they seem to give me a good product I'm proud to share.
I just use a lid liner with a pin hole in it on jars. I've not done any experiments to see what my angel share is though.
for gallon jugs, I use a cork stopper with a slit in it. Give em a whiff and a shake from time to time and they seem to give me a good product I'm proud to share.
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Re: My glass jar aging technique
Nice work and great price on 1/2gal jars.
I got dizzy standing on my head to appreciate all that went into these jars...
I got dizzy standing on my head to appreciate all that went into these jars...

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Re: My glass jar aging technique
Wow!
I mailed Mr badmo himself a couple of weeks ago, asking him if he didn't want to produce lids like this!
Haven't seen your post before
I figured, there would be fewer steps in production and lest less oak be needed per lid. Seeing his line of buyers growing over 1500 people, maybe if we just got some bees wax on that edge and tightened the lid hard, it might make a more simple badmo mini!
I mailed Mr badmo himself a couple of weeks ago, asking him if he didn't want to produce lids like this!

Haven't seen your post before
I figured, there would be fewer steps in production and lest less oak be needed per lid. Seeing his line of buyers growing over 1500 people, maybe if we just got some bees wax on that edge and tightened the lid hard, it might make a more simple badmo mini!
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Re: My glass jar aging technique
Corene did these jar lids a few years back. I think she was using a lathe.
pretty slick tho. kinda surprised that someone with a automatic lathe isn't banging these out by the gross...the market is vast and growing!
pretty slick tho. kinda surprised that someone with a automatic lathe isn't banging these out by the gross...the market is vast and growing!
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- TwoSheds
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Re: My glass jar aging technique
All sounds valid. I have some PTFE sheet I was going to use for this, hadn't thought about adding pinholes. But I also had the oak on hand.Deplorable wrote: ↑Sun Feb 19, 2023 8:52 am Looks like a solid repeatable process for those who can't get PTFE lid liners. I like it.
I just use a lid liner with a pin hole in it on jars. I've not done any experiments to see what my angel share is though.
for gallon jugs, I use a cork stopper with a slit in it. Give em a whiff and a shake from time to time and they seem to give me a good product I'm proud to share.
I'd like to figure out a container/solution in a bit larger size as I settle on recipes and techniques. The cork makes sense if you can find solid ones.
Thanks!
TwoSheds
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Re: My glass jar aging technique
Thanks for rotating them TB. Not sure why the lose their orientation but I know others run into this too.Twisted Brick wrote: ↑Sun Feb 19, 2023 11:47 am Nice work and great price on 1/2gal jars.
I got dizzy standing on my head to appreciate all that went into these jars...![]()
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Re: My glass jar aging technique
The problem with using these laying down is the surface to volume ratio is way smaller than a barrel. In that sense BadMo has it figured out! I use thinner oak (his is 1"-ish, mine is 1/4") knowing that it's more permeable, but that I won't be losing liquid since it's upright.LordL wrote: ↑Sun Feb 19, 2023 11:57 am Wow!
I mailed Mr badmo himself a couple of weeks ago, asking him if he didn't want to produce lids like this!
Haven't seen your post before
I figured, there would be fewer steps in production and lest less oak be needed per lid. Seeing his line of buyers growing over 1500 people, maybe if we just got some bees wax on that edge and tightened the lid hard, it might make a more simple badmo mini!
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Re: My glass jar aging technique
My pleasure, TS. Jars on their side or upside down like you had 'em tend to drip, at least until the wood swells and makes a good seal. Now they good.
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Re: My glass jar aging technique
Yup I saw that at one point and it was a consideration. I'd have taken a lot more time on the lathe.
I think there would be a market anyway! You're right, a CNC lathe or even a CNC on flat could bang these out in no time. They're not a perfect solution but in an industry where more than half of the crap they sell isn't even fit for purpose you could make a killing!
Thanks.
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Re: My glass jar aging technique
Right? Thanks for saving my virtual hooch!Twisted Brick wrote: ↑Sun Feb 19, 2023 5:04 pm My pleasure, TS. Jars on their side or upside down like you had 'em tend to drip
Since you mention it, I was worried about swelling too. The rings don't lock down quite as tight with the oak as they do with the original caps so I worry they could pop off even with a little swelling. So far none of them have but direct contact with the liquid would certainly increase the risk.
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Re: My glass jar aging technique
True. Another item to be aware of is that the circular shape of the lid, once saturated will expand into an oval shape, the ends of the grain the most. You might want to keep an eye on them and try to possibly return (shave/sand?) the extended portions back to round.
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Re: My glass jar aging technique
As you start to venture into larger batch sizes, if you are happy with those lids, go for 1-gallon jars with 4" lids. You'll have to cut the middle out of the lid leaving just a ring, but you'll get the same effect. Honestly, I'm considering going to gallon jars so I can reduce the amount of labor I put into making oak fingers that fit in the neck of a 1-gallon cider jug.TwoSheds wrote: ↑Sun Feb 19, 2023 4:55 pmAll sounds valid. I have some PTFE sheet I was going to use for this, hadn't thought about adding pinholes. But I also had the oak on hand.Deplorable wrote: ↑Sun Feb 19, 2023 8:52 am Looks like a solid repeatable process for those who can't get PTFE lid liners. I like it.
I just use a lid liner with a pin hole in it on jars. I've not done any experiments to see what my angel share is though.
for gallon jugs, I use a cork stopper with a slit in it. Give em a whiff and a shake from time to time and they seem to give me a good product I'm proud to share.
I'd like to figure out a container/solution in a bit larger size as I settle on recipes and techniques. The cork makes sense if you can find solid ones.
Thanks!
TwoSheds
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Re: My glass jar aging technique
Yup, I'm familiar with how wood moves. This is why I have the recess on the ring side instead of in the glass, though I think I have enough of a gap either way. The good part is it doesn't cause a problem with the contact on the jar. Might warp the rings a little, but they're still functional.Twisted Brick wrote: ↑Sun Feb 19, 2023 7:18 pm True. Another item to be aware of is that the circular shape of the lid, once saturated will expand into an oval shape, the ends of the grain the most. You might want to keep an eye on them and try to possibly return (shave/sand?) the extended portions back to round.
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Re: My glass jar aging technique
Oh man, I suspect those 1 gallon cider jugs are a hassle. At least with spirits there isn't usually much schmutz that would need to be scrubbed out. Still, need to size your sticks for any swelling or you'll have to wait for them to dry to get them out.Deplorable wrote: ↑Sun Feb 19, 2023 7:24 pm As you start to venture into larger batch sizes, if you are happy with those lids, go for 1-gallon jars with 4" lids. You'll have to cut the middle out of the lid leaving just a ring, but you'll get the same effect. Honestly, I'm considering going to gallon jars so I can reduce the amount of labor I put into making oak fingers that fit in the neck of a 1-gallon cider jug.
I always have an eye out for bigger jars, but I don't want a bunch of one-offs where I need to make custom sizes for each jar. So far I haven't found anything I can reliably get that's as cheap as mason jars.
That said, mason jars are miserable to pour from when they're 2/3 or more full.
If I can find the oak I'll start making BadMo clones, but air-dried, seasoned white oak is hard to come by.
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Re: My glass jar aging technique
I got a box of really sweet-smelling cutoffs for Badmo's from Gibbs with my recent barrel order. You might call them and ask if they'll sell you some without purchasing a barrel. Call Jodee (501) 623-8881
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Re: My glass jar aging technique
Hmm... i might do that, or I might finally have to order a barrel! I'll see how the next few ferments go. Thanks for the heads up!Twisted Brick wrote: ↑Sun Feb 19, 2023 8:17 pm I got a box of really sweet-smelling cutoffs for Badmo's from Gibbs with my recent barrel order. You might call them and ask if they'll sell you some without purchasing a barrel. Call Jodee (501) 623-8881
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Re: My glass jar aging technique
https://www.etsy.com/listing/967496298/ ... ef=hp_rv-1
I ordered a couple oak and a couple cherry to test them out.
Cheers!
-jonny
I ordered a couple oak and a couple cherry to test them out.
Cheers!
-jonny
————
i prefer my mash shaken, not stirred
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i prefer my mash shaken, not stirred
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Re: My glass jar aging technique
If you really wanted to go larger, you might try making an oak o-ring for a corny keg.
Something to think about.
Something to think about.

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Re: My glass jar aging technique
My opinion, the o-ring is too small of an area to bother with. I've read some just omit the ring to let them breath.
I've considered cutting down a couple corny kegs to use like a BadMo but at around 9" in diameter they end up with around 64 sq. in. of surface area. From what I've read a barrel has about 68 sq. in. per gallon. To stay on-par with a real barrel I'd only use the very bottom and stick with 1 gallon. I could reduce the surface area and go 2 or 3 gallons and not risk over oaking, maybe add some oak inside. Guess I could cut off both ends and do a double BadMo, that'd be interesting!
Or I could cut one open and make a thin lid like I use on the mason jars, I'd just need to figure out how to hold it down when it wants to warp.
My first large (40 gallon) mash is about ready to start stripping. I'll see how yields are from that, I can store the high wines in corny kegs until I know how much I really have to deal with, then I'll figure out how to store.
Thanks for the comment. I hadn't thought about cutting up a corny for a while.
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Re: My glass jar aging technique
Doing 40 gallon mashes you'll likely get about two gallons or more of finished product (depending on cuts of course).
That's getting into 5 gallon barrel territory. It takes me three ferments to fill a 5 gallon barrel. Well worth the effort IMO.
That's getting into 5 gallon barrel territory. It takes me three ferments to fill a 5 gallon barrel. Well worth the effort IMO.
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Re: My glass jar aging technique
2 Gallons of Hearts from 40 Gallons of Wash?Deplorable wrote: ↑Mon Feb 20, 2023 10:41 am Doing 40 gallon mashes you'll likely get about two gallons or more of finished product (depending on cuts of course).
That's getting into 5 gallon barrel territory. It takes me three ferments to fill a 5 gallon barrel. Well worth the effort IMO.
Is this in a scenario where no thumper is being used?
I consistently pull out 1.5 gallons of hearts from a 13 Gallon Wash that end up around 130-140 Proof that I bring down to 125 before letting them air out for a day which brings them down to around 120-122.
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Re: My glass jar aging technique
"Hearts" are what YOU decide they are. In my shed 23 gallons of wash at 8-9% nets me about 5 to 5.5 liters at about 68% abv.Shine_Dad wrote: ↑Mon Feb 20, 2023 11:31 am2 Gallons of Hearts from 40 Gallons of Wash?Deplorable wrote: ↑Mon Feb 20, 2023 10:41 am Doing 40 gallon mashes you'll likely get about two gallons or more of finished product (depending on cuts of course).
That's getting into 5 gallon barrel territory. It takes me three ferments to fill a 5 gallon barrel. Well worth the effort IMO.
Is this in a scenario where no thumper is being used?
I consistently pull out 1.5 gallons of hearts from a 13 Gallon Wash that end up around 130-140 Proof that I bring down to 125 before letting them air out for a day which brings them down to around 120-122.
-ShineDad
Sure there's more alcohol, but what I call Hearts equals between 5 and 5.5 liters. The other jars get recycled into the next run, or turned into vodka later.
What YOU call heads, hearts, and tails in your shed is sure to be different.
Edited to add this is twice through a pot still, no thumper to answer your question.
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Re: My glass jar aging technique
Did you happen to measure the ABV after a year to compare it to the entry proof? I know there's several factors that can cause the ABV to increase or drop in a real barrel.
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Re: My glass jar aging technique
This is what I'm doing at the moment. I have a corny with chips in it ( smaller amount than normal since I wanted a longer aging window) and I left the O-ring off which, in my opinion, leaves just enough space for vapor to escape at a slow enough rate. I haven't sampled it in a while, I might have to do that tonightTwoSheds wrote: ↑Mon Feb 20, 2023 8:28 amMy opinion, the o-ring is too small of an area to bother with. I've read some just omit the ring to let them breath.
I've considered cutting down a couple corny kegs to use like a BadMo but at around 9" in diameter they end up with around 64 sq. in. of surface area. From what I've read a barrel has about 68 sq. in. per gallon. To stay on-par with a real barrel I'd only use the very bottom and stick with 1 gallon. I could reduce the surface area and go 2 or 3 gallons and not risk over oaking, maybe add some oak inside. Guess I could cut off both ends and do a double BadMo, that'd be interesting!
Or I could cut one open and make a thin lid like I use on the mason jars, I'd just need to figure out how to hold it down when it wants to warp.
My first large (40 gallon) mash is about ready to start stripping. I'll see how yields are from that, I can store the high wines in corny kegs until I know how much I really have to deal with, then I'll figure out how to store.
Thanks for the comment. I hadn't thought about cutting up a corny for a while.
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Re: My glass jar aging technique
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Re: My glass jar aging technique
I'm going to do this some as well, now that I have in excess of 3 gallons of a couple different spirits that I want to age in the same way it'll be easier to use one big corny than to split. I'll use re-surfaced staves in mine, but same idea.bcook608 wrote: ↑Thu May 25, 2023 8:22 am This is what I'm doing at the moment. I have a corny with chips in it ( smaller amount than normal since I wanted a longer aging window) and I left the O-ring off which, in my opinion, leaves just enough space for vapor to escape at a slow enough rate. I haven't sampled it in a while, I might have to do that tonight![]()
I agree on removing the seal. I'll try to watch the angels share (maybe by weight) to see what happens.
Frequent sampling is always critical!