I have no idea why, but unless I'm just looking in all the wrong places finding one that powerful over here is nigh on impossible. Especially canners.
Does anyone know of places to look for 15psi cookers/canners for the UK?
I already have an Amazon basics one that is 4L (4.2 quarts) which seems to have done the job with my current tek jars as they're colonising healthily, but it is only 90 kPa, which if Google is correct is only a touch over 13psi. I'm not sure if that's too low. My last jars I used with it I just left them on the stove half hour longer.