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.
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