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Pasteurizing apple juice takes 6 seconds at 160°F once it hits temperature; heating and cooling usually add 20–45 minutes.

Apple juice often ferments in 5–14 days, then needs 1–3 weeks to clear, based on yeast choice and temperature.

Juice can start fermenting in 12–48 hours, with a drinkable ferment in 3–10 days, based on sugar, yeast, and temperature.

Most opened juice goes bad in 7–10 days in the fridge, while unopened shelf-stable juice can last months; the type and storage set the clock.

Homemade aloe vera juice is safest and tastes freshest within 3–4 days in the fridge; freeze portions the same day if you need more time.

Pear juice often leads to a bowel movement in 4–12 hours in adults, with steadier relief taking 24–48 hours.

Most celery juice changes show up in 3–14 days, while steadier shifts usually take 2–4 weeks of consistent intake.

Squeezed calamansi juice keeps its best flavor for 2–3 days in the fridge, and it’s a safer bet to use or freeze it by day 4.

Most people wait 10–30 minutes after celery juice before eating, but comfort, meds, and goals can shift the timing.

Fresh celery juice keeps 24–72 hours refrigerated; seal it tight and chill fast for best flavor and lower spoilage risk.