Free tools
Food-storage calculators
The questions every preservation project runs into: how long it lasts, how much you need, what it costs, and how much salt a ferment takes, all answered with real numbers.
How long will it last?
Mylar shelf-life calculator
Pick a food and a bag thickness for a real shelf-life estimate, and whether 3.5, 5 or 7 mil is the right choice.
Open the tool →How much do I need?
Oxygen absorber calculator
Size the absorber for any bag or bucket by the cc-per-gallon rule, with the simplest way to buy the packs.
Open the tool →What does it cost?
Storage cost calculator
Work out the real cost per year of storing a staple, so you can see whether a setup actually pays off.
Open the tool →How much salt?
Fermentation salt calculator
Get the exact grams of salt for a sauerkraut, kimchi or pickle brine, dosed by weight percentage.
Open the tool →Which method wins?
Food shelf-life table
Compare how long common staples last across pantry, fridge, freezer, vacuum-sealing and mylar, side by side.
Open the tool →