When I make tzatziki, I cover my cutting board with a thin tea towel and grate the cucumber directly onto the cloth. When I have grated enough, I gather the corners of the towel, scooping all the grated cucumber into the center. I can then twist the towel and squeeze out the moisture. That done, the cucumber is easily dropped into a bowl, ready to mix with the other ingredients. This method can also be used for grated zucchini and potatoes.
June Robertson, via email, None