Ordered List ItemOnce blended, let sit overnight before straining, if possible. This way the water has plenty of time to leach out the goodness from the rice and almonds. The four-hour method does work, but you don't get quite the same flavor. Along the same lines, many horchata “experts” actually prefer to not blend immediately, but rather let the mixture sit overnight to soften, before blending the next day. If you like how this comes out, feel free to experiment, and test for yourself.