Product review (1 stars): Bosch now junk
The old excellence standard for Bosch is no longer the case.  I had the same problem with the knobs.  I complained and discovered that Bosch had indeed recognized the problem and was manufacturing replacement knobs for anyone who complained. The previous knobs did not have a baked on finish which disolved when they came in contact with water.  The new replacement knobs have a sealed glossy finish. HOWEVER...... shortly after I bake a lasagna at 375 degrees THE INTERIOR OVEN DOOR GLASS SHATTERED !!!!!!!!!!!!!!!!!!!  This... following many cooling fan replacements.  The oven is only months old and I've had numerous repairs.  Now I need a new door. I bought the oven from a small appliance store which has been a wonderful advocate for ALL my Bosch problems.  Thank God, I didn't buy On-Line or at one of the big chains.