Grab a large (32 oz) mason jar.
Day 1: Feed with 50 grams flour and water. Stir to combine.
Day 2: Feed with 50 more grams flour and water. Stir to combine.
Day 3: Discard 100 grams of your starter. Feed with 100 grams flour and water. Stir to combine.
Day 4: Discard 150 grams starter. Feed with 100 grams flour and water. Stir to combine.
Day 5: Discard 200 grams starter. Feed with 150 grams flour and water. Stir to combine. You will need a larger vessel by day 4 or 5.
Day 6: Discard 250 grams starter. Feed with 200 grams flour and water. Stir to combine.
Day 7: You have a ready and ACTIVE starter!
