Do you mean the veg stock concentrate itself was really salty Pearsall or the dish in which you used it? I would never taste the veg stock concentrate, it is not for tasting but using in recipes and if you leave all salt out of the recipe until the end when you can adjust according to your own tastes, 100g of salt really shouldn't be too much at all. I freeze all my stock concentrates then I don't have to worry if they have gone past their use by dates at all. The VSC stays soft so is easy to remove from a ziplock bag with a spoon using 150g salt but I daresay with the lesser quantity of 100g it would still stay soft. With no salt though you would have to freeze it in ice-cube trays or put little dobs on baking paper, freeze them then keep them in a ziplock bag.