1) Use a clean and dry heavy bottom pan and spatula.
2) Either refrigerated butter or room temperature butter can be used. Room temperature butter melts faster.
3) Clean and dry air tight container is needed for storage. Preferably glass container.
4) Use clean and dry spoon to use/spread the clarified butter to avoid contamination.
4) Fine Mesh filter is required to filter the clarified butter.
5) Filter it as soon the clarified butter is formed. Don't allow it to rest in the pan the clarified butter is made as it becomes difficult to filter the milk solids once it starts to solidify.
6) Don't close the jar after filtering the hot clarified butter as water droplets will be formed on the lid which will contaminate the clarified butter.
7) Clarified butter can be stored in your kitchen cabinet (away from light, not on the counter) for up to 3 months.
8) When made in large quantity, place the clarified butter(lid tightly closed) into the refrigerator and can be used up to an year.