noun
wort filtration; lautering; sparging
Technical term in brewing: the process of separating the liquid wort from the grain husks after mashing. ろ過 is the common simplified spelling; 濾過 is more formal.
ビール醸造では、麦汁ろ過の工程が重要です。
In beer brewing, the wort filtration step is important.
麦汁ろ過槽を使って、麦芽かすを取り除きます。
Using a lauter tun, the spent grains are removed.
Compound of 麦汁 (wort) and ろ過 (filtration). The kanji 濾 is often replaced by the simpler ろ in modern usage.