Helpline
Contact our helpline, staffed by trained volunteers, to ask food preservation and food safety questions. You may also schedule an appointment to have your pressure canner gauge tested at our office in San Luis Obispo.
Our trained volunteers share research-based information and aim to respond to inquiries within 7 business days.
(805) 781-1429
(voicemail only)
University of California Cooperative Extension Office
2156 Sierra Way, Suite C, San Luis Obispo, CA 93401
Front office hours: Monday–Friday, 8:00 AM–5:00 PM
Pressure Gauge Testing
Pressure gauge testing is free and open to home cooks and preservers.
We have a Presto® Testing Unit designed exclusively for testing Presto® pressure dial gauges on pressure canners.
Contact the helpline for more information or to schedule an appointment.


