I made carrot and orange soup - took blardy ages what with the homemade crusty rolls. Had to chuck the whole lot as it tasted foul.
The only thing I could think of was that I put half an orange in towards the end (sans peel) and put the rest aside to eat later. It all cooked down and then I put it in the mixer. Before soup sampling I ate the rest of my Orange and it was FULL of seeds. Could a couple of ground up seeds alter the flavour of the soup altogether?
Ingredients were basic; onion, celery, carrots, tomato and a few herbs and seasoning.