Can the tomato sauces in jars, like Dolmio be frozen? Say you open a jar and you only use a little of the sauce, it seems a waste if you're not going to use it up within a couple of days.
Yes, I do this quite often with tomato based sauces. I wouldn't freeze anything like a creamy sauce but tomato sauces are fine frozen. I usually use them within a month.
Don't know why anyone would want to freeze Dolmio - lol
You should try LLoyd Grossman or Sacla. Definitely worth freezing esp. the tomato and basil of both brands. Sacla usually keep for 2 weeks in the fridge after opening as well.