Using the Zojirushi Onigiri Maker for Perfect Rice Balls
By Zojirushi Online Store | Published: 2026-10-19
Category: How-to Guides
Learn how to use the Zojirushi Onigiri Maker to shape consistent, restaurant-style rice balls at home. Step-by-step instructions, common mistakes, and tips for best results.
Quick Answer
Use the Zojirushi Onigiri Maker by pressing warm, slightly salted sushi rice into the mold, adding fillings in the center, then pressing the lid firmly to shape a compact, triangular rice ball that holds together without falling apart.
Why the Right Rice Matters
The onigiri maker works best with short-grain Japanese rice that is slightly stickier than long-grain varieties. Cook the rice with a bit less water than usual so each grain stays distinct but still clumps when pressed. Overly wet or mushy rice will stick to the mold and produce a soggy onigiri.
Let the cooked rice cool for about 5 minutes before molding. Hot rice can burn your hands and cause the mold to warp slightly, while cold rice won't compress into a stable shape.
Common Filling Mistakes
A common error is overfilling the mold. The onigiri maker has a shallow cavity designed for a small spoonful of filling—about one teaspoon. Too much filling pushes the rice apart and creates weak spots that cause the ball to crack open when you remove it from the mold.
Dry or crumbly fillings (like flaked salmon or furikake) work better than wet ingredients that can make the rice slide apart. Pat wet fillings with a paper towel before adding them.
Step-by-Step: How to Shape Onigiri with the Zojirushi Mold
- Prepare the rice and mold: Cook short-grain rice and let it cool for 5 minutes. Lightly wet the inside of the Zojirushi Onigiri Maker with water to prevent sticking. Shake off excess water. Wetting the mold is essential—skipping this step causes the rice to stick and tear when you open the mold.
- Fill the bottom half with rice: Scoop about 2 tablespoons of warm rice into the bottom cavity. Use the back of the spoon to create a small well in the center for the filling. Don't pack the rice yet—leave it loose so the filling sits evenly without pushing rice out.
- Add the filling: Place about 1 teaspoon of your chosen filling into the well. Avoid overfilling; too much will prevent the mold from closing completely. If the lid doesn't snap shut easily, remove some filling. A tight seal is needed for a compact shape.
- Cover with more rice and close the mold: Add another 2 tablespoons of rice on top of the filling, mounding slightly. Close the lid and press firmly until you hear a click or feel the latch engage. Press evenly—pressing only one side creates lopsided onigiri that may crumble.
- Remove and serve: Open the mold and gently push the onigiri out from the bottom. If it sticks, tap the mold lightly on the counter. Serve immediately or wrap in plastic wrap for later. Don't twist the mold open—this can crack the rice ball. Always push from the bottom.
Product Details
- *Free Gift* Zojirushi Onigiri Maker: This Zojirushi Onigiri Maker was offered as a free gift with purchase of select Zojirushi rice cookers from October 7 through November 13, 2025, or while supplies lasted. If you already own a compatible Zojirushi rice cooker, you may have received this mold as a promotional item—making it a convenient, no-cost tool for shaping rice balls at home.
*Free Gift* Zojirushi Onigiri Maker
