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Altitude Time and Pressure Adjustment Tables

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Water boils when its vapor pressure exceeds the atmospheric pressure, which reduces as the altitude increases. Water will boil and maintain a lower temperature at higher altitudes than at sea level. These lower boiling point temperatures increase the cooking times for any food, they increase the processing time for canning in a water bath and they increase the pressure required to process in a pressure canner. The temperatures and processing times that we publish are from sea level up to an elevation of 1,000 feet. The charts below indicate the adjustments that should be made for each processing method at different elevations.

Boiling Water Temperature in Fahrenheit

Sea Level 1000 ft 2000 ft. 3000 ft. 4000 ft. 6000 ft. 8000 ft.
212 210.1 208.2 206.3 204.4 200.6 196.8

Reflects a 1.9 degree reduction for each 1,000 foot elevation increase.

Water Bath Canner Processing Times in Minutes

Sea Level to 1000 ft. Elevation

1001 ft - 3000 ft.

3001 ft - 6000 ft. Above 6000 ft.
5 10 10 15
10 15 15 20
15 20 20 25
20 25 30 35
25 30 35 40
30 35 40 45
35 40 45 50
40 45 50 55
45 50 55 60
50 55 60 65
55 60 65 70
60 65 70 75
65 70 75 80
70 75 80 85
75 80 85 90
80 85 90 95
85 90 95 100
90 95 100 105

Home Canning Altitude Adjustment for Dial Gauge Pressure Canner (Processing times remain unchanged.)

 

Sea Level

Gauge

1000 ft. 2000 ft. 4000 ft. 6000 ft.
5 lbs. 6 lbs. 7 lbs. 8 lbs. 9 lbs.
6 lbs. 6 lbs. 7 lbs. 8 lbs. 9 lbs.
11 lbs. 15 lbs. 15 lbs. 15 lbs. 15 lbs.

Home Canning Altitude Adjustment for Weighted Gauge Pressure Canner (Processing times remain unchanged.)

 

Sea Level

Gauge

1000 ft. 2000 ft. 4000 ft. 6000 ft.
5 lbs. 10 lbs. 10 lbs. 10 lbs. 10 lbs.
11 lbs. 15 lbs. 15 lbs. 15 lbs. 15 lbs.

If you don't know the elevation of your zip code, go to the Home Canning Elevation Finder.

If you have Google Earth, you can find the exact elevation of your home or property there.

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