Our kitchen whiffs. No matter what we’ve tried to date, it whiffs. Case in point, we’ve just been away for a week and before we went all the bins were empty, the washing machine had been put through a self-clean cycle with some, er, washing machine cleaning stuff, ditto the dishwasher. When we got home after a week, the kitchen stank. As ever, it’s a kind of drainy, binny kind of whiff.
I’ve put a plastic bag around the washing machine outlet, secured with an elastic band at each end, to stop any drain smells coming out of that. Dishwasher is plumbed straight in to to the sink waste, so can’t get any drain whiffs from that. We regularly put boiling water down the sink. We’re diligent about leaving the washing machine door open after use so it dries out. As above, washing machine and dishwasher get regularly cleaned with specific cleaner. We’ve pulled the fridge out and there’s nothing festering under there. Anything else I can try/check?