expression, godan verb (-su)
let cooked rice steam after turning off the heat
Specific cooking technique: after rice finishes cooking, leave it covered off the heat for a few minutes to allow residual steam to finish the texture.
炊飯器が止まったら、そのまま十分ほど飯を蒸らしてください。
Once the rice cooker stops, let the rice steam for about ten minutes as is.
飯を蒸らす
If you don't let the rice steam long enough, it will turn out soggy.