gentlegreen
I hummus, therefore I am ...
I generally take two scoops plus some juice, then put it back on the hotplate.Something is either sealed or not sealed, there's no 'moderately well sealed'. Also, it's the fact you're putting utensils in it that each day.
It's a shame I'm retiring and the place is so shut down or i might be able to ask a friendly microbiologist to do some plates ...