If your fruit is frozen, allow it to get to room temperature before starting.
If you haven't already, hull and dice strawberries. Peel and dice your kiwi as well.
Add the strawberries and kiwi to your pot/blender along with your water and sugar.
Blend/boil until completely dissolved.
Strain before moving to gallon container. If you boiled the fruit, let it sit for about 15 minutes to reach room temperature.
Open your brewsy bag and pour the contents in. Seal your juice again and shake well.
Apply the airlock, then leave your container somewhere dark and warm (75-80°F is best) for 3 days.