The lifespan of an explosion-proof pressure cooker is generally 5-8 years. Beyond this period, the cookware material may age due to prolonged use under high temperature and pressure, leading to decreased strength and increased safety hazards.
While some commercial or high-quality products can last longer with proper maintenance (e.g., around 10 years), it is recommended to strictly adhere to the 5-8 year safety limit for home use. The specific lifespan is also affected by the following factors:
Material Differences
Aluminum Alloy Pots: Lightweight and conducts heat quickly, but their crystalline structure tends to loosen after prolonged heating, resulting in a faster decrease in strength. It is recommended to consider replacement after 5 years.
Stainless Steel Pots (e.g., 304/316): Corrosion-resistant and pressure-resistant, they can last up to 8 years or even longer with proper maintenance, but regular inspection of critical safety components is still necessary.
Usage Frequency and Habits
High-frequency use (such as daily cooking) will accelerate the aging of vulnerable parts such as seals and valves. Frequent high-heat pressure application, dry-heating, or improper cleaning will also shorten the overall lifespan.
Core Safety Component Status
Even if the pot body is intact, it should be stopped immediately and replaced if any of the following conditions occur:
Hardened, cracked, or leaking sealing rings
Float valve not moving smoothly, pressure relief valve not releasing air properly
Loose lid latches, deformed handle connection
Relevant National Standards Reference
According to the "Safe Service Life of Household Appliances" standard issued by the China Household Electrical Appliances Association, the safe service life of an electric pressure cooker is 5 years. This is a recommended replacement period to prevent the risk of electric leakage, pressure relief failure, or even explosion caused by aging.