Drinking Tea after 12 hours of Preperation ?

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I had heard about consuming foods like, some food should be consumed immediately, some can be kept for 6 to 8 hours like rice, vegetable, Chicken, etc. some can be kept for even 1 days to 3-4 days and consumed when stored in good required conditions or refrigerators depending upon food. Some can be kept for even months under preserved conditions like refrigerators or as stated by the manufacturer if purchased from shops like pickle, honey, nuts, etc... What about Tea? Within how many hours from its preparation should we consume it before it get spoiled up or causes indigestion or even food poisoning? Can it be preserved in refrigerator so as we can use even after 10 hours? Simply, can it be consumed after 12hours of preparation?