Veggie substitute for ¨Parmesan cheese

[NicMac]

Does anyone know of an alternative cheese I can use instead of parmesan which contains animal rennet? It is to be used for making pesto. Thanks very much

We recently had a piece of Berkswell which had a very similar flavour. From checking further on Google, I think that it is vegetarian though I couldn't find that mentioned on the farm's website.

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What a wealth of knowledge - thank you very much!