[Place the gelatin into a bowl. Add the water and allow to bloom whilst you make the berry juice.
Add the strawberries, raspberries and blackberries to a high speed blender and blitz until smooth.
Pour into a muslin cloth and squeeze out the juice. Discard the pith.
Pour half the juice into a pan and warm on a low heat.
Add the bloomed gelatin and mix until it dissolves.
Remove from the heat and add the rest of the juice. (Adding the juice in two parts ensures the gummy bears keep their colour.) Skim off any foam with a spoon. (TASTE the mix at this point. If you feel it needs a bit of extra sweetness, stir in 1-2 tsp of powdered erythritol).
Place your silicone jelly mould onto a flat surface and carefully add the triple berry gelatin juice to each gummy bear using a pipette.
Place in the fridge for 2 hours to set.
I calculated the nutrition on the basis of 15 portions. My gummy bear molds yielded 150 cute little bears - 10 per portion - but the amount of bears will depend on your moulds. You can store your homemade gummies in the fridge for up to 3 days. We liked these gummies sweetener-free. The sweetness of the gummies will depend on the ripeness and quality of your fruit. Simply add some powderederythritol if you feel the gummy bear juice needs it. Other optional add-ins: ½ tsp vanilla powder or extract, ½ tsp cinnamon, juice of ½ lemon or juice of 1 lime (the acid in the lemon/lime will increase the storage time to well over 1 week)