Q&A for How to Can Tomato Sauce

Yes, as long as there isn't anything solid inside (onions and such) and it's kept in a cool place, like the fridge or the freezer. Basil or other leave condiments can be left inside and won't get too soggy.

No. Meat should always be refrigerated after it has been cooked. Otherwise, bacteria could begin to grow in it.

It's perfectly fine to put hot sauce in a jar, as long as it isn't made of materials that would melt, such as plastic. Keep in mind that this may cause the sauce to become more watery though, because the steam will be trapped inside the jar and end of flowing back into your sauce, instead of evaporating.

As long as the containers you are using are clean, airtight, and able to be sealed, you'll be fine.