Shelf Life Calculator
Estimate product expiration dates, remaining shelf life, and optimal storage conditions for food, beverages, cosmetics, and pharmaceuticals.
Expiration Date
Status
Storage Recommendations
Product Shelf Life Reference
| Product Type | Unopened | Opened | Storage Tips |
|---|
Frequently Asked Questions
What is shelf life?
Shelf life is the length of time a product remains safe to use, effective, and maintains its intended quality when stored properly. It applies to food, beverages, cosmetics, medicines, and many other consumer products.
What's the difference between "Best By" and "Use By"?
- Best By / Best Before: Indicates peak quality, not safety. Product is usually still safe after this date.
- Use By / Expiration Date: Indicates safety deadline. Do not consume after this date.
- Sell By: For inventory management by retailers, not a safety indicator.
How does temperature affect shelf life?
Higher temperatures accelerate degradation. For every 18°F (10°C) increase above optimal storage temperature, chemical reactions double, reducing shelf life by approximately 50%. Our calculator adjusts for storage conditions.
Does humidity affect shelf life?
Yes! High humidity promotes mold growth and spoilage in dry goods. Low humidity can cause dehydration and texture changes. Optimal humidity is typically 50-60% for most products.
Can you use products after the expiration date?
For many dry goods and canned foods, products remain safe after the "Best By" date, though quality may decline. However, NEVER consume baby formula, medicines, or refrigerated foods past their expiration dates for safety reasons.
How long do canned goods last?
Properly stored canned goods last 2-5 years. High-acid foods like tomatoes last 12-18 months. Low-acid foods like vegetables and meats last 2-5 years. Discard cans that are bulging, rusted, or leaking.
How long do cosmetics last after opening?
Most cosmetics have a PAO (Period After Opening) symbol showing months of use after opening (e.g., "6M" = 6 months). Mascara: 3 months, Foundation: 12 months, Lipstick: 18-24 months, Skincare: 6-12 months.
How can I extend product shelf life?
- Store in cool, dark, dry locations
- Keep containers tightly sealed
- Use oxygen absorbers for dry goods
- Refrigerate after opening when applicable
- Follow "first in, first out" rotation