Pot still for whisky distillation

Pot still craft whisky

Pot still

 It looks like huge kettle and enables batch system distillation. High alcohol spirits distilled by pot still keeps material original flavor.

 It is used for malt whisky, Cognac, Tequila, Shochu Otsu type and heavy rum. Malt whisky require twice or 3 times distillation by pot still.

 Malt whisky distillation is done by copper made pot still. Because malt contains sulfur components which makes discomfort burn rubber smell and copper remove it from mash steam during distillation process.
 On the other hands, pot still for other spirits is normally stainless one.

Reflux for whisky distillation

Reflux

 Distilleries control how much and what kind of flavor contents remain in distilled spirits by reflux phenomenon. 
 Reflux is "heated steam going back to liquid and falling back to pot during distillation".  
 Increasing reflux makes spirits  more clear mild flavor and light smooth taste. Decreasing reflux makes spirits rich material grain flavor and powerful taste. 

Pot still part design

 Distillery controls reflux level by pot parts design.

Heating type of pot still for whisky distillation

Heating source

Whisky pot still body

Pot body

Whisky pot still neck

Pot neck

Pot still Lyne arm for whisky distillation

Lyne arm

Condensor pot still for whisky distillation

Condenser

Copper pot still by Forsyth for whisky distillery

Standard whisky pot still

 Normally whisky distillery has 2 pot stills at least because they need wash still for 1st distillation and spirits still/raw wine still for 2nd distillation. Wash still is bigger than spirits still.

Most famous standard pot stills manufacture is Scotish company Forsyth but some pot still in Japanese whisky distillery are made by Japanese company Miyake Industries

Molded pot still by Oigo seisakusho and Wakatsuru shuoz for saburomaru distillery

Molded pot still

 Normally copper pot still for whisky was made by tapping process form sheet but there are only one pot still by molding process in the world. It was developed by Wakatsuru Shuzo and Oigo Seisakusho and it is operating at Saburomaru distillery.

Hybrid pot still by Arnold Holstein

Hybrid pot still

 Normally whisky distillery has 2 pot stills at least because one is for 1st distillation (Wash still) and the other is 2nd distillation (Spirits still/Raw wine still). But some micro distillery has only one pot still. 
This type distillery does both 1st and 2nd distillation by one pot still. So that these pot still is called hybrid pot still.

Most of hybrid pot stills for whisky are made by German company Arnold Holstein. 

Stain less pot still for rice whisky

Stainless pot still

  There are much more stainless pot still than copper pot still in Japan. Because traditional Japanese spirits (Shochu and Awamori) are made by stainless pot still.
 
  Normally stainless pot still is not suitable for whisky because it can't remove sulfur compounds in malt during distillation. Sulfur compounds causes disconfort smell like burned rubber. Altough copper pot still can remove it.

Stainless pot still for Japaese rice whisky

Vacuum stainless pot still

 Almost all rice whisky distilleries are using stainless pot still which they are using for Schochu. In deed, stainless pot still distillation of Shochu and rice whisky doesn't have any problem because fermentation is done by Koji enzyme instead of malt enzyme.

  On the other hads, a few distilleries are producing whisky fermentated by malt enzyme by stainless pot still. As a theory, whisky could have sulfur smell however some of them are very smooth taste. It is probably made by vacuum type stainless pot still which was developed by Schochu and rice whisky distillery Kitaya.

Pot still manufactures

 Distillery controls reflux level by pot parts design.

Forsyths

 This scotish company was found in 1890. It is most famous whisky pot sill manufacture in the world today.
 Many pot stills in Japan were also produced by Forsyths.

Forsyths logo whisky pot still producer

Miyake Industries

 This is Japanese company was found in 1934. Their main business is bear production facility.
 They started pot sill production after WW2 and Miyake is one of main pot sill producer for Japanese whisky today. 

Miyake logo whisky pot stll producer

Frilli

 This Italian company was found in 1912.
 They are producing mainly copper or stainless pot still. 

Frilli logo whisky pot still producer

Arnold Holstein

 This German company was found in 1958. They are producing small-middle size still system not only for whisky but also for many other spirits like Vodka, Rum, Gin, Tequila, Grappa, Brandy.
 They are good at producing hybrid type pot still. 

Arnold Holstein logo whisky hybrid pot still producer

Oigo Seisakusho

 This Japanese company was found in 18th century. Actually it is copper casting company for Buddhist temple but they started pot still production with Saburomaru Distillery.

Oigo Logo Zemon mold whisky pot still producer