@Lou
I usually buy tubes of Mutti tomato paste (see pic below). They last a little while after opening, but ideally freezing it in pre-portioned amounts is the way to go. An ice cube tray would work into about 2 tablespoons, depending on the cube size. I vacuum seal mine after freezing.

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I usually buy tubes of Mutti tomato paste (see pic below). They last a little while after opening, but ideally freezing it in pre-portioned amounts is the way to go. An ice cube tray would work into about 2 tablespoons, depending on the cube size. I vacuum seal mine after freezing.

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