The Canning Detail That Changes When You Move Uphill
Food Systems
The processing directions for home-canned food depend partly on altitude. A recipe followed at sea level may require a different time or pressure higher up, so the elevation of your kitchen matters.
Before preparing a batch, identify your altitude and use the adjustment in the tested recipe. Check that you’re reading the directions for your canner type and jar size. Keep the selected instructions beside you as you work.
When giving a recipe to someone who lives elsewhere, send the full official instructions rather than only the ingredient list and the time you used. Their altitude and equipment may call for a different process.