I just finished cooking my apple butter and it is my first time to do it. I have not put it in the jar I run out of jars. It was fun-doing things for the first time and in my cooking me always on a look out for new utensils that is useful in my cooking. I used sieves to separate the liquid from the solids and then I blend the solids so it would go through the sieves. A sieve is use in many ways it can be use in cooking, laboratories also use sieves and even farms used sieves. Of course, it differs on the size depending on what and how do you use it.