I found 2 old cans of malt extract out in my shed last week. One was Gold Rush Pilsner without any dried yeast & the other one is coopers bitter. The Gold Rush can was stored on it's side & had alot of rust on it & seems to have expanded slightly, could not find expire date on can. Coopers Bitter can has best before 02/02/03 so it's 2 years past expire date. Will this still be ok to brew?. I'm brewing the Gold Rush atm & it's fermenting well with the included Coopers Bitter yeast. I thought some of the yeast might be dead but I started it up in a cup for 24 hours and it got all foamy so the yeast is ok. Going to use the same yeast for the coopers bitter as well after the gold rush has finished. Has any have experience brewing with expired malt extract? and if so how does it effect the flavour.
Ok thanks