Storage & Shelf Life

Pantry, fridge, and freezer aren't interchangeable answers

A lot of "how long does X last" content online gives a single number, as if an ingredient only has one storage life. In practice almost everything on this site has at least two relevant durations, and often three: how long it lasts unopened at room temperature, how long once it's opened or cooked and moved to the fridge, and how long it holds up in the freezer, where texture rather than safety usually becomes the limiting factor. Each page below separates those out instead of collapsing them into one figure, because "how long does it last" and "how long is it still safe" and "how long before the texture suffers" are three different questions with three different answers.

Every duration figure traces back to USDA FoodKeeper or USDA FSIS guidance rather than a manufacturer's printed date or a generic estimate. That distinction matters because printed dates like "best by" and "sell by" are manufacturer freshness estimates, not federal safety cutoffs — food is frequently still safe well past a "best by" date, and the storage pages here are built around the safety and quality window USDA actually publishes, not the date stamped on the package.

The spoilage signs listed on each page are also specific to that ingredient rather than a generic "if it smells off, throw it out" line. Raw ground meat, leafy greens, soft cheese, and dry pantry staples each fail in visibly different ways — sliminess, discoloration, an ammonia smell, visible mold, or pantry pests — and knowing which sign actually applies to the item in front of you is more useful than a blanket warning.

When "how long does it last" and "can you freeze it" get their own page

A handful of ingredients get a dedicated freeze-specific or shelf-life-specific page beyond the storage entry below, because those two questions ("can I freeze this" and "exactly how long until it's gone") are search questions in their own right with their own specific answer — freezability and a hard shelf-life number aren't always obvious from the general storage entry alone.

Freezing isn't a universal fix, either. Some foods freeze essentially unchanged — bread, most raw meat, butter. Others survive freezing safety-wise but come out with a different texture, which matters for some uses and not others: frozen-then-thawed lettuce turns limp and is fine in a smoothie but useless in a salad, and heavy cream can separate after freezing in a way that ruins it for whipping but not for cooking into a sauce. The freeze-specific pages call out that texture change directly instead of giving a flat yes-or-no on freezing.

Cross-cutting food-safety material — the USDA "danger zone" between 40°F and 140°F, and why perishable food left out more than two hours should be discarded regardless of how it looks or smells — is covered once, in depth, rather than repeated on every storage page; see the blog for that explanation in full.