The payasam keeps well in the fridge for 2-3 days. Microwave for 1 min, before serving. I used Maggie coconut milk powder to make this payasam. For thick coconut milk use 3-4 tbsp milk powder in 1 cup lukewarm water, for medium thick, use 2-3 tbsp milk powder in 1 cup lukewarm water, for thin, use 1-2 tbsp milk powder in 1 cup lukewarm water.