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Thumper Question

This discussion was created from comments split from: Welcome to our Beginner's Talk Category!.

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  • Thumper question... How much, if any, water do you "pre-load" thumper with?

  • edited February 20

    Hi @NorthState,

    As a general rule,,just enough to cover up the vapor inlet pipe. However the Carribean rum method will be a bit different. Though it is still up to the distiller to determine liquid levels. Results can vary.

    One assumes no more than a third full is a good place to start. You can read a bit more here.

    StillDragon North America - Your StillDragon® Distributor for North America

  • @Smaug said: Hi NorthState,

    As a general rule,,just enough to cover up the vapor inlet pipe. However the Carribean rum method will be a bit different. Though it is still up to the distiller to determine liquid levels. Results can vary.

    One assumes no more than a third full is a good place to start. You can read a bit more here.

    Thanks Smaug!

  • in my experience the slower you heat up the more your thumper will fill, when I'm heating up I go hard and fast to get the thumper on line as quickly as possible. I do fill mine 2/3 full (10-11 gallons) as I'm trying to strip as much as possible to get the most low wines I can. Doing it this way I can get 10 gal of low wines for a spirit run, I usually end up with close to 3 gallons of good sippin likker, 2.5 if I'm conservative with my cus but with rum and bourbon close to 3. Also depends if I plan to barrel age or drink white.

  • I have 13 gal. milk can still. I run 10 gal. mash about 15 % abv. My thumper is half gal. mason jar. It fills up in about half of run. Is there some rule on how big my thumper needs to be.

  • One third volume is what is usually bandied about.

    StillDragon Australia & New Zealand - Your StillDragon® Distributor for Australia & New Zealand

  • Is that one third of ten gallons or one third of my product. Thank You

  • Use 1/3 rd to half of your boilers capacity to size the capacity of your thumper.

    StillDragon Australia & New Zealand - Your StillDragon® Distributor for Australia & New Zealand

  • @draw57 said: I have 13 gal. milk can still. I run 10 gal. mash about 15 % abv. My thumper is half gal. mason jar. It fills up in about half of run. Is there some rule on how big my thumper needs to be.

    With gear that small, some of your problem is with heat loss. Once the thumper is up to boiling, in an ideal system, each gram of steam from the boiler condensing will vaporize about (actual number depending on the heats of vaporization for both the boiler liquid and the thumper liquid) a gram of the thumper liquid, so the liquid level in the thumper won't change much.

    On the other hand, if all the heat derived from condensing that gram of boiler liquid is radiated, convected, and/or conducted away from the thumper, you're just added a gram of liquid to your thumper. Your situation is somewhere between those 2 extremes, but you're gaining liquid after the thumper boil.

    Insulate the thumper and all the vapor tubes, for a start.

    Zymurgy Bob, a simple potstiller

    my book, Making Fine Spirits

  • Thank you for your info. I do have a problem with heat. That is why I went to a thumper because I was getting foam in my product. Also due to too much sugar. Which I picked up because of all of the good info I get from this forum. I think I am going to make bigger one and put inline with the smaller one or the bigger first then the smaller one. I will be buying your book. Thank you again.

  • As ZB suggested its a parasitic boiler. You can control thumper volume with insulation and if you use cascading sizes you need the smallest one closer to the PC and the bigger one closest to the boiler.

  • Hello Myles. Where you been?

    StillDragon Australia & New Zealand - Your StillDragon® Distributor for Australia & New Zealand

  • Took the words right outta my mouth, Punkin.

    Zymurgy Bob, a simple potstiller

    my book, Making Fine Spirits

  • Sorry folks been busy in the desert so not about as much as I would like

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