Oh no, Maria! Unfortunately, it sounds like your starter is past the point of no return. Temperatures over 140°F will kill yeasts. Since you're no longer getting bubbles, it seems that this is what happened to your starter. On the other hand, you're lucky in one way: since you're experienced at maintaining a healthy starter, it shouldn't be too challenging to start afresh. Our Sourdough Baking Guide can help you get started with creating a new starter, and within a week or two you should be ready to bake again. Kat@KAF

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