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The Science:

  1. Drier grains - Fresh rice is quite moist. When refrigerated overnight, the surface moisture evaporates, leaving you with drier, firmer grains that won't turn mushy when stir-fried.
  2. Starch retrogradation - As rice cools, the starch molecules recrystallize (a process called retrogradation). This makes each grain firmer and more separate, rather than sticky and clumped together.
  3. Better texture - Those separated, drier grains mean you get individual pieces of rice that can crisp up slightly when fried, rather than a gluey mass. This creates that proper fried rice texture with distinct grains.
  4. High-heat friendly - Lower moisture content means the rice can develop that slightly crispy, toasted edge without steaming. You get much better "wok hei" (that smoky, charred flavour from high-heat cooking).

Practical tips:

  • Spread cooked rice on a tray to cool before refrigerating—this prevents condensation from making it soggy
  • Break up any clumps with your hands before using
  • Day-old rice that's 1-2 days old is ideal; beyond that it can get too dry and hard
  • If you need to use fresh rice, spread it on a tray and let it cool completely, then refrigerate for at least 2-3 hours

When it matters most:

  • Fried rice (essential!)
  • Rice bowls where you're adding moisture on top
  • Dishes where you want distinct rice grains

When fresh rice is fine:

  • Serving rice plain alongside curries or stews
  • Risotto-style dishes
  • When you want fluffy, soft rice

So in this tofu rice bowl recipe, day-old rice gives you better texture and helps the grains stay distinct when you drizzle the kimchi brine and dressing over top however I often just use gorgeous and hot rice straight from the cooker. YUM. 


White kimchi's delicate, refreshing character is perfect for this —use our Fermentary White Kimchi which is also available in subscription boxes and online!

Written by Sharon Flynn

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