How Japanese Sake Is Made– Explore traditional brewing methods, ingredients, fermentation, and sake craftsmanship. –

Two tanks of sake sit side by side in a storage building. Same rice, same yeast, same recipe, same brewing season. Yet one tastes rounder, while the other carries sharper acidity. So what happens next? Somebody tastes both, then decides ...

Bottling, or binzume (瓶詰め) in Japanese, is the stage where finished sake enters its retail container. Brewers fill, seal and then check the liquid they have spent months preparing, usually after clarification, dilution and heat treatm...

Hi-ochi (火落ち) is the bacterial spoilage of sake. It strikes after brewing finishes, and a small group of ethanol-tolerant lactic acid bacteria causes it. Sake is a hostile place for microbes, so the fact that anything spoils it at all...

Karashi (枯らし) is a conditioning period in sake brewing, and it happens three separate times. Rice rests after polishing, koji rests after leaving the koji room, and the finished starter rests before it enters the main mash. Japanese b...

Ask a brewer what makes sake possible and the answer rarely starts with rice. It starts with koji. Yet koji is not added freely, and the amount is measured to the kilogram. That measurement has a name: koji buai. Koji buai (麹歩合) is th...

Jukusei (熟成) is the maturation of sake after brewing has finished. During this stage, time, temperature, and storage conditions gradually reshape its aroma, flavor, color, and texture. Most sake goes through some maturation before rele...

Two breweries can start with the same rice variety, the same well, and the same yeast. Yet the sake in the glass tastes nothing alike. The reason usually hides in a document that drinkers never see. Brewers call it the shikomi haigo. So ...

Kumimizu buai (汲水歩合) is sake's water-to-rice ratio. Brewers calculate it by dividing the brewing water in liters by the total rice in kilograms, then multiplying by 100. Most breweries work somewhere between 125 and 135 percent. That...

Oribiki (滓引き) is the sake racking step that separates clear sake from settled sediment after pressing. Brewers rest the freshly pressed sake until solids sink, then draw the clear liquid gently into another tank. It happens after pres...

Pour a glass of good sake and hold it up to the light. That transparency looks effortless, yet it takes weeks of quiet work. So what is Orisage? Orisage (滓下げ) is the clarification step brewers carry out before bottling. It settles the...

Sake begins with a quiet transformation inside a grain of rice. That transformation has a name: koji. So what is koji in sake brewing? Koji is steamed rice grown with a special mold, Aspergillus oryzae. The mold spreads through each grai...

Sake owes its very existence to a tiny living thing. That thing is yeast, a microbe you cannot see. So what is yeast in sake brewing? Yeast is the microorganism that turns sugar into alcohol. During fermentation, it also releases carbon ...

Open any bottle of premium sake, and you will see a number on the label. It often reads something like 60 percent or 50 percent. That figure points to rice polishing, one of sake's defining steps. So what is rice polishing in sake brewin...

Every bottle of sake hides a quiet miracle inside. That miracle is fermentation. So what is fermentation in sake brewing? Fermentation is the process where yeast turns sugar into alcohol. It also gives off carbon dioxide and rich aroma. ...

Great sake begins before the main fermentation ever starts. Hidden inside the brewery is a small but powerful starter called moto, also known as shubo, the "mother of sake." So what is moto in sake brewing? In essence, moto is a concentr...

Sake truly takes shape in one bubbling tank. That tank holds the moromi. So what is moromi in sake brewing? Moromi, written 醪 in Japanese, is the main fermentation mash of sake. It is the thick mixture of steamed rice, koji, water, and ...