If you incorporate these ingredients in your cooking, your left-overs will last longer:
- honey
- salt
- garlic
- sugar (only in high amounts according to feedback; small amounts shortens the life)
- ginger
- sage
- rosemary
- sage
- mustard
- cumin
Additionally from other articles:
- black pepper
- mustard seed
- turmeric
- cinnamon
- cardamom
- cloves
Acids mentioned by others:
- vinegar
- citric acid
- lemon/lime juice
I just had some harissa get moldy after just a couple weeks in a jar in the fridge. I was surprised. I suppose it implies a lack of the above ingredients.
I would assume the same is true for honey, since honey is just a solution of sucrose and glucose thats high enough in concentration of those sugars that it won’t mold, but it will if you dilute it
i wondered about that.