Reddit reviews 5 Gallon Vacuum Degassing Chamber Kit with 3 CFM Pump - Not for Wood Stabilizing
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Stainless steel chamber with welded handles for long-term air-tightness performance.Round edge at the top for the protection of silicone gasket.Gauge reading in both inHg and Mpa.All kits are vacuum tested for 24 hours before packaging. (leakage less than 2.0 inHg @ 24 hours)Two-sided flippable vacuum gasket for better durability and reliability.
I know it ain’t cheap, but why not use a vacuum chamber?
https://www.amazon.com/dp/B01N11WMX2/ref=cm_sw_r_cp_awdb_t1_0myFDbPDB9AT9
You would effectively increase the pressure in your cans without changing temperature and messing with seal compound.
FWIW, this is a method used for other containers.