5 Surprising Expiration Dates

By Maya Kukes and Lisa Smith Keate, RealSimple.com

A handy keep-or-toss guide to 75 foods, beauty products, and household goods.

Food

Brown sugar
Indefinite shelf life, stored in a moistureproof container in a cool, dry place.

Chocolate (Hershey bar)
1 year from production date

Coffee, canned ground
Unopened: 2 years
Opened: 1 month refrigerated

Coffee, gourmet
Beans: 3 weeks in paper bag, longer in vacuum-seal bag (after this time, color or flavor may be affected, but product is still generally safe to consume)

Ground: 1 week in sealed container

Coffee, instant
Unopened: Up to 2 years
Opened: Up to 1 month

Diet soda (and soft drinks in plastic bottles)
Unopened: 3 months from “best by” date.
Opened: Doesn't spoil, but taste is affected.

Dried pasta
12 months

Frozen dinners
Unopened: 12 to 18 months

Frozen vegetables
Unopened: 18 to 24 months
Opened: 1 month

Honey
Indefinite shelf life

Juice, bottled (apple or cranberry)
Unopened: 8 months from production date
Opened: 7 to 10 days

Ketchup
Unopened: 1 year (after this time, color or flavor may be affected, but product is still generally safe to consume)
Opened or used: 4 to 6 months (after this time, color or flavor may be affected, but product is still generally safe to consume)

Maple syrup, real or imitation
1 year

Maraschino cherries
Unopened: 3 to 4 years
Opened: 2 weeks at room temperature; 6 months refrigerated

Marshmallows
Unopened: 40 weeks
Opened: 3 months

Mayonnaise
Unopened: Indefinitely
Opened: 2 to 3 months from “purchase by” date (after this time, color or flavor may be affected, but product is still generally safe to consume)

Mustard
2 years (after this time, color or flavor may be affected, but product is still generally safe to consume)

Olives, jarred (green with pimento)
Unopened: 3 years
Opened: 3 months

Olive oil
2 years from manufacture date (after this time, color or flavor may be affected, but product is still generally safe to consume)

Peanuts
Unopened: 1 to 2 years unless frozen or refrigerated
Opened: 1 to 2 weeks in airtight container

Peanut butter, natural
9 months
Peanut butter, processed (Jif)
Unopened: 2 years
Opened: 6 months; refrigerate after 3 months

Pickles
Unopened: 18 months
Opened: No conclusive data. Discard if slippery or excessively soft.

Protein bars (PowerBars)
Unopened: 10 to 12 months. Check “best by” date on the package.

Rice, white
2 years from date on box or date of purchase

Salad dressing, bottled
Unopened: 12 months after “best by” date
Opened: 9 months refrigerated

Soda, regular
Unopened: In cans or glass bottles, 9 months from “best by” date
Opened: Doesn’t spoil, but taste is affected

Steak sauce
33 months (after this time, color or flavor may be affected, but product is still generally safe to consume)

Tabasco
5 years, stored in a cool, dry place

Tea bags (Lipton)
Use within 2 years of opening the package

Tuna, canned
Unopened: 1 year from purchase date
Opened: 3 to 4 days, not stored in can

Soy sauce, bottled
Unopened: 2 years
Opened: 3 months (after this time, color or flavor may be affected, but product is still generally safe to consume)

Vinegar
42 months

Worcestershire sauce
Unopened: 5 to 10 years (after this time, color or flavor may be affected, but product is still generally safe to consume)
Opened: 2 years

Household Products

Air freshener, aerosol
2 years

Antifreeze, premixed
1 to 5 years

Antifreeze, concentrate
Indefinite

Batteries, alkaline
7 years

Batteries, lithium
10 years

Bleach
3 to 6 months

Dish detergent, liquid or powdered
1 year

Fire extinguisher, rechargeable
Service or replace every 6 years

Fire extinguisher, nonrechargeable
12 years

Laundry detergent, liquid or powdered
Unopened: 9 months to 1 year
Opened: 6 months

Metal polish (silver, copper, brass)
At least 3 years

Miracle Gro, liquid
Opened: 3 to 8 years

Miracle Gro, liquid, water-soluble
Indefinite

Motor oil
Unopened: 2 to 5 years
Opened: 3 months

Mr. Clean
2 years

Paint
Unopened: Up to 10 years
Opened: 2 to 5 years

Spray paint
2 to 3 years

Windex
2 years

Wood polish (Pledge)
2 years