Jarwise: Canning Timer & Log

Jarwise is a canning timer and canning log built on the USDA Complete Guide to Home Canning. Pick a food, your canner, the pack and the jar size, and Jarwise shows the guide's tested process time and pressure for your altitude. Then it walks you through the canner step by step and keeps a log of every batch and every jar on your shelf. No account, no subscription, works offline. TESTED TIMES ONLY - 98 foods from the USDA guide: fruit, tomatoes, vegetables, meat, poultry and seafood - Every time and pressure is copied from the guide's tables, with the page it comes from - Water bath, weighted-gauge and dial-gauge pressure canners, each with its own pressures - If the guide has no tested process for a combination, Jarwise says so and shows no time. It never guesses, never stretches a time to a bigger jar and never lets you edit a process time - Low-acid foods (vegetables, meat, poultry, seafood) only get pressure canner processes - Headspace, hot or raw pack, and the acid to add to tomatoes, straight from the guide YOUR ALTITUDE, SET ONCE - Enter your altitude in feet or metres once; every time and pressure adjusts to your band - The full table for each food, with your band highlighted - Weighted or dial gauge: tell Jarwise what you own and it shows that first A CANNER TIMER THAT KNOWS THE STEPS - Venting, bringing up to pressure, processing, letting the pressure fall, the wait before opening, and cooling, each explained as you go - If the boil stops or the pressure drops, restart the full process time with one tap, as the guide says - The screen stays on while the timer runs, with alerts at the end of each step - A reminder to check the seals 12 hours later LOG AND PANTRY - Every batch: food, date, jars, the process used, jars that didn't seal, notes - A pantry of sealed jars, oldest first, with "use within a year" dates - Use a jar with one tap; export your log to CSV - Supplies checklist for canning day SAFETY ESSENTIALS IN PLAIN WORDS - Why low-acid foods need a pressure canner, why tested times matter, altitude, headspace, seals, storage and signs of spoilage, each with its page in the USDA guide - A link to open the guide itself for the full directions and recipes PRIVATE AND OFFLINE - No account: your log stays on your phone. Back up to one file and restore on a new phone - Free with ads. An optional one-time purchase removes them; no subscription, nothing locked Jarwise is a companion to the USDA guide, not a replacement: follow its directions and recipes exactly. Jarwise is made by Fernhart Labs and is not affiliated with the USDA, the National Center for Home Food Preservation or any canning brand.