Glass Thumpers
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- Tokoroa_Shiner
- Distiller
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Glass Thumpers
Using mason jars or other glass jars for a thumper is a safety hazard. The possibility of them shattering is extremely high.
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Have Fun, Keep Safe and Shine On
- T-Pee
- Master of Distillation
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Re: Glass Thumpers
In other words, don't. There WILL be a dogpile on yo azz.
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- Tokoroa_Shiner
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Re: Glass Thumpers
Darn tootin
Must read topics for new members
The Rules By Which We Live By
Safety And Related Issues
New Distillers Reading Lounge
Have Fun, Keep Safe and Shine On
The Rules By Which We Live By
Safety And Related Issues
New Distillers Reading Lounge
Have Fun, Keep Safe and Shine On
- freshwaterjellyfish
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Re: Glass Thumpers
ive been obsessed with the idea of steaming rum w a thumper.. ive read other threads and some people feel strong that theyll work, (provided theyre canning jars)
..years ago i used to pressure cook mason jars for over an hour- multiple times. truth be told, 1per 40 would get hair line cracks.
...even with that being said, im still itchy to rig a big ass pickle jar up for a few runs before i upgrade to a keg...
..years ago i used to pressure cook mason jars for over an hour- multiple times. truth be told, 1per 40 would get hair line cracks.
...even with that being said, im still itchy to rig a big ass pickle jar up for a few runs before i upgrade to a keg...
Man goes to doctor. Says he's depressed , feels alone in a cruel world. Doctor says, "Treatments simple. The great clown Pagliacci is in town tonight. That should pick you up." Man bursts into tears."But doctor. I am Pagliacci."
- jedneck
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Re: Glass Thumpers
Its not the heat that breaks the glass. Its the rapid temp change. And how you gonna seal the lid, they arnt stainless or copper.
welcome aboard some of us are ornery old coots but if you do a lot of
reading and don't ask stupid questions you'll be alright most are
big help
Dunder
reading and don't ask stupid questions you'll be alright most are
big help
Dunder
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Re: Glass Thumpers
When canning, the entire jar is submerged in the water bath and temperatures rise and lower gradually... A glass thumper is just hanging out in the breeze, partially filled with high proof alcohol once up to temperature... Jars use a tin lid with a synthetic seal... Even using a standard jar ring with a copper plate wrapped with PTFE doesn't make a glass jar safe for use as a thumper... Thermal variations and the action of thumping could be enough to cause a catastrophic failure... The potential risks just aren't worth the gamble... I've never seen a SS or copper thumper suffer a catastrophic failure... Best option is to go with materials that are proven safe...
- freshwaterjellyfish
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Re: Glass Thumpers
..thats very true..the temp variations, flammable vapours...does seem stupid. i went as far as fabricating the face of the lid copper. the pickle jar is way too small anyway..all the reading ive done in the last 20 min sais: dont do it
Man goes to doctor. Says he's depressed , feels alone in a cruel world. Doctor says, "Treatments simple. The great clown Pagliacci is in town tonight. That should pick you up." Man bursts into tears."But doctor. I am Pagliacci."
- bearriver
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Re: Glass Thumpers
People have thought all sorts of stupid things... Just sayin.freshwaterjellyfish wrote:ive read other threads and some people feel strong that theyll work, (provided theyre canning jars)
- Red Rim
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Re: Glass Thumpers
In the past, before I found HD, I copied a plan from " those who shalt be named" (ripoff artists).. It used a mason jar as a thumper. Now I am not in anyway condoning this behavior, but,,, I ran a large pickle jar for almost a year with no problems.. However, I read about the ability to have the glass shatter and spraying 180 degree flammable liquid all over you, and I quickly changed my ways. The plus side is I had a visual on what was going on in my thumper and gathered from the speed and sound of the bubbles, the speed that I should run my still. The down side. THIRD DEGREE BURNS AND DEATH BY FIRE!!!
Many other ways to build a thumper, like a nice stainless stock pot!
Many other ways to build a thumper, like a nice stainless stock pot!
There is no such thing as a stupid question....... Unless you didn't research it first.
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Re: Glass Thumpers
Number 40 is the jar that causes, a house/garage fire, you loose your house/garage, burns you badly, causing hospital time, lost wages, stress on family, so many other things could happen. Safety is about prevention, not what ifs. To me it's not worth it.
Here's to alcohol, the cause of, and solution to, all life's problems.
"Homer J Simpson"
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- cranky
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Re: Glass Thumpers
Every year I put up green beans, tomato sauce and jelly and every year I have at least one jar fail, in spit of the fact that the jars as well as whats in them are heated to the same temp as the waster they are going into. This year was a double failure on the same batch of green beans. Anybody who cans knows this happens. Canning jars are not made from borosilicate (Pyrex), they are soda glass and prone to stressing from expansion and contraction from heat and they often fail blowing the bottom right out of the jar. So using them for anything besides storage is a very bad idea.
- freshwaterjellyfish
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Re: Glass Thumpers
Murphy latches to me like a ramora fish. i was very iffy on the idea. im glad this forum is around for everyone's perspective and opinion.Red Rim wrote:In the past, before I found HD, I copied a plan from " those who shalt be named" (ripoff artists).. It used a mason jar as a thumper. Now I am not in anyway condoning this behavior, but,,, I ran a large pickle jar for almost a year with no problems.. However, I read about the ability to have the glass shatter and spraying 180 degree flammable liquid all over you, and I quickly changed my ways. The plus side is I had a visual on what was going on in my thumper and gathered from the speed and sound of the bubbles, the speed that I should run my still. The down side. THIRD DEGREE BURNS AND DEATH BY FIRE!!!
Many other ways to build a thumper, like a nice stainless stock pot!
Man goes to doctor. Says he's depressed , feels alone in a cruel world. Doctor says, "Treatments simple. The great clown Pagliacci is in town tonight. That should pick you up." Man bursts into tears."But doctor. I am Pagliacci."
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Re: Glass Thumpers
I've used the same pint, really thick wide mouth jar on a 5 gal pot still for the past year and seen no problems. I haven't tried it on my keg...yet. I am interested in a thumper as I do believe based on my experience so far that the product is better but it could be personal preference or opinion.
I will likely explore one for my keg but perhaps not glass!
I will likely explore one for my keg but perhaps not glass!
- shadylane
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- cranky
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Re: Glass Thumpers
It only takes one "problem" to cut you badly, burn you with hot alcohol, set your house on fire and send you both to the hospital and jailSEMO wrote:I've used the same pint, really thick wide mouth jar on a 5 gal pot still for the past year and seen no problems.

- shadylane
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Re: Glass Thumpers
Made a glass thumper, instead of using a jar, I used a glass globe from an explosion proof light.
The globe is made out of borosilicate glass and has a usable volume of a little over 1/3 gallon.
Planned on putting fruit in it for adding flavor.
It didn't work. The damn thing kept flooding and I didn't like the flavor it added.
Thought about turning it upside down, adding a down-comer back to the pot and using it as a glass bubble plate.
The globe is made out of borosilicate glass and has a usable volume of a little over 1/3 gallon.
Planned on putting fruit in it for adding flavor.
It didn't work. The damn thing kept flooding and I didn't like the flavor it added.
Thought about turning it upside down, adding a down-comer back to the pot and using it as a glass bubble plate.
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- shadylane
- Master of Distillation
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Re: Glass Thumpers
Since this thread is about what not to use.
Don't use a mason jar for anything other than drinking out of.
Using a regular jar for a thumper is an invitation to disaster.
Don't use a mason jar for anything other than drinking out of.
Using a regular jar for a thumper is an invitation to disaster.
- moosemilk
- Master of Distillation
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Re: Glass Thumpers
My thoughts, you wanna see what's going on in a thumper, put a proper sight glass on it. One on each side to let light in. That's if. Me, don't care about the visual. I like to learn by feel.
- HDNB
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Re: Glass Thumpers
+1 moose! ...i do some of my best work in the dark!moosemilk wrote:My thoughts, you wanna see what's going on in a thumper, put a proper sight glass on it. One on each side to let light in. That's if. Me, don't care about the visual. I like to learn by feel.
I finally quit drinking for good.
now i drink for evil.
now i drink for evil.
- moosemilk
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Re: Glass Thumpers
Yup, a still is kinda like a woman with one big difference: after a bit of time, you can figure out a still.HDNB wrote:i do some of my best work in the dark!
- hamshine
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Re: Glass Thumpers
A still will let you run it.... LOLmoosemilk wrote:Yup, a still is kinda like a woman with one big difference: after a bit of time, you can figure out a still.HDNB wrote:i do some of my best work in the dark!
ETOH.... yes plz
- freshwaterjellyfish
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Re: Glass Thumpers
i scrapped my big glass jar thumper idea, (im glad i did). But i come back to inquire:
my sis gave me a stainless steel chili pot thats two gal smaller than the cook pot; only thing is the lid is glass
but..its thick, heavy, sais made in France. I reckon if i can drill the proper holes with glass bits-i d give it a whirl...ya?...no?..im crazy?...
my sis gave me a stainless steel chili pot thats two gal smaller than the cook pot; only thing is the lid is glass

Man goes to doctor. Says he's depressed , feels alone in a cruel world. Doctor says, "Treatments simple. The great clown Pagliacci is in town tonight. That should pick you up." Man bursts into tears."But doctor. I am Pagliacci."
- T-Pee
- Master of Distillation
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Re: Glass Thumpers
Glass is glass. If it breaks you still have hot ethanol vapors loose.
tp
tp
Caution: Steep learning curve ahead!
Handy Links:
The Rules We Live By
GA Flatwoods sez
Cranky's Spoon Feeding For The New Folk
My "Still Tutorial" CM w/PP mods
Handy Links:
The Rules We Live By
GA Flatwoods sez
Cranky's Spoon Feeding For The New Folk
My "Still Tutorial" CM w/PP mods
- Danespirit
- Master of Distillation
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Re: Glass Thumpers
+1 T-Pee
The ones running a rig with glass (plated for example) do so with expensive borosilicate glass.
Anything else, could be asking for a disaster to happen...especially running on gas..! ( sirenes and coloured lights are coming to mind)
The ones running a rig with glass (plated for example) do so with expensive borosilicate glass.
Anything else, could be asking for a disaster to happen...especially running on gas..! ( sirenes and coloured lights are coming to mind)
- freshwaterjellyfish
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Re: Glass Thumpers
ive never used flame for stilling. In fact i changed from a stove top to a nice big induction plate. In time i can find a SS lid that will fit....at the same time im finding info that states the best pyrex (borosilicate) is made in France.....
"Unfortunately, Pyrex, once synonymous with borosilicate glass, switched from borosilicate to soda-lime glass in the 1950s, with the majority of the U.S. kitchen industry following suit in the 1980s. Soda-lime glass is the most commonly used and least expensive form of glass. Another sad story in which the quest for lower prices led to the sacrifice of quality. Ironically, the European manufacturer of Pyrex, Arc International in France, still uses borosilicate glass in their Pyrex kitchen products today. So in order to get the original quality of an American icon, you have to buy it in France. - See more at: http://kaufmann-mercantile.com/borosili ... Q3W7l.dpuf" onclick="window.open(this.href);return false;" rel="nofollow"
"Unfortunately, Pyrex, once synonymous with borosilicate glass, switched from borosilicate to soda-lime glass in the 1950s, with the majority of the U.S. kitchen industry following suit in the 1980s. Soda-lime glass is the most commonly used and least expensive form of glass. Another sad story in which the quest for lower prices led to the sacrifice of quality. Ironically, the European manufacturer of Pyrex, Arc International in France, still uses borosilicate glass in their Pyrex kitchen products today. So in order to get the original quality of an American icon, you have to buy it in France. - See more at: http://kaufmann-mercantile.com/borosili ... Q3W7l.dpuf" onclick="window.open(this.href);return false;" rel="nofollow"
Man goes to doctor. Says he's depressed , feels alone in a cruel world. Doctor says, "Treatments simple. The great clown Pagliacci is in town tonight. That should pick you up." Man bursts into tears."But doctor. I am Pagliacci."
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Re: Glass Thumpers
Oh la la, well if it's French it must be fine! I would not drill the glass lid but rather drill the stainless pot near the top and come in from the side.
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Drinking Rum before noon makes you a Pirate not an alcoholic.
- freshwaterjellyfish
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Re: Glass Thumpers
lmao!!..no doubt..drilling from the side is definitely thinking outside the pot.Hound Dog wrote:Oh la la, well if it's French it must be fine! I would not drill the glass lid but rather drill the stainless pot near the top and come in from the side.
I dont even think the "French" lid and the pot are even a set. Its not the tightest fit. meh...time to scope for SS lid
Man goes to doctor. Says he's depressed , feels alone in a cruel world. Doctor says, "Treatments simple. The great clown Pagliacci is in town tonight. That should pick you up." Man bursts into tears."But doctor. I am Pagliacci."