When in doubt don't throw it out.  Refresh, by discarding half of it, and especially any of the smelly, colorful chunks-then just add about the same amount of volume of flour and water.   Your starter is stronger than you think, just got to help the good bacteria out by getting rid of the bad bacteria. 
Happy baking!  
For more information about House of Bread, please visit www.houseofbread.com. To purchase the House of Bread recipe book, please visit https://houseofbread.com/recipe-book/ To take an on line class, please visit https://houseofbread.com/product-category/online-baking-class/ If you’d like more information about the franchise opportunity with House of Bread, please visit www.houseofbreadfranchise.com. For our Utube channel, please go here https://m.youtube.com/channel/UCXH5NgT8vpnAuSuZN5AxEQQ.

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