What is meant by "no-sparge" in brewing?

In brewing, "no-sparge" refers to a method where the grains are not rinsed with additional water after the initial wort is drained. Instead, all the wort is collected from the mash without any extra water added for rinsing. This approach often results in a more concentrated wort with potentially higher levels of unfermented sugars and flavors from the grains. The intention behind no-sparge brewing is to simplify the process and reduce water usage while still extracting desirable flavors and sugars from the malt.

Rinsing the grains, as suggested in the other option, does not align with the no-sparge technique, as this process typically involves using additional water to wash sugars and flavors from the grain bed. Not performing this rinsing step is what characterizes the no-sparge method and influences both the flavor profile and the efficiency of sugar extraction in the final wort.