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Yes, tea contributes to daily hydration; for most people its mild caffeine does not offset the fluid in brewed tea.

Yes, sleep after caffeine is possible, but timing, dose, and personal sensitivity shape how easy it feels.

Yes, over-steeping black tea leads to bitter, astringent flavor and extracts more caffeine and tannins than a balanced brew needs.

Yes, many teas handle multiple infusions; tune water heat and time so the second or third cup still tastes bright and balanced.

No, cranberry juice can’t stop an active UTI; cranberry products may help reduce recurrent urinary infections.

Yes, you can steep coffee in milk, but extraction is weak and strict cold-storage rules apply.

Yes, you can steep black tea a second time; expect milder flavor and lower caffeine, and avoid leaving damp leaves out for hours.

Yes, you can steep two different tea bags together; match temperatures and times to avoid bitterness.

Yes—if your kettle has an infuser or says brewing is allowed; standard kettles heat water only—steep tea in a teapot or mug.

Yes—many teas handle two to five rebrews; add heat and time each round until the flavor fades.