Processing Adjustments According to Altitudes

Water boils at 212° Fahrenheit. This is true if your location is not far from sea level. In Baguio City, water boiling point is 209° Fahrenheit. A three degrees lower because boiling point drops one degree for every 500-foot increase in elevation. Baguio city is approximately 1,500 ft above sea level.

If you own a food processing plant in Manila and planning to move in Baguio or in any Benguet Province, keep in mind that you need to adjust some processing parameters. Failure to adjust temperature and time ratio may result to product spoilage.

The following are guides for adjustment. Data courtesy of USDA. pressure cooker

For boiling-water canner, adjust processing time as follows:
below 1,000ft    =   20 minutes
1,001–3,000ft   =   25 minutes
3,001–6,000ft  =  30 minutes
Above 6,000ft   =  35 minutes

When using dial-gauge pressure canner, for the processing time of 10 minutes pressure be adjusted:
0–2,000ft = 6 lb
2,001–4,000ft = 7 lb
4,001–6,000ft = 8 lb
6,001–8,000ft = 9 lb

When using weighted-gauge pressure canner, for the processing time of 10 minutes pressure be adjusted:
0–1,000ft = 5 lb
Above1,000ft = 10 lb

Storage Life of Fruits and Vegetables

Recommended temperature and relative humidity for fruits and vegetables and the approximate storage life under these conditions (Page 1)

CROP TEMPERATURE (°C) RELATIVE  HUMIDITY (%) STORAGE LIFE (days)
Amaranth 0-2 95 10-14
Apple -1-4 90 30-180
Apricot -0.5-0 90 7-21
Artichoke 0 95 14-21
Asian pear 1 90 150-180
Asparagus 0-2 95 14-21
Atemoya 13 85 28-42
Avocado 3-13 85 14-56
Babaco 7 85 7-21
Banana – Plantain 13-15 90 7-28
Barbados cherry 0 85 49-56
Basil 7-10 85 7
Bean (dry) 4-10 40 180-300
Beet (bunched) 0 98 10-14
Beet (topped) 0 98 120-180
Belgian endive 0-3 95 14-28
Blackberry -0.5-0 90 2-3
Black sapote 13-15 85 14-21
Blueberries -0.5-0 90 14
Bok Choy 0 95 21
Breadfruit 13-15 85 14-42
Broadbeans 0-2 90 7-14
Broccoli 0 95 14-21
Brussels sprouts 0 95 21-35