Bottled my first brew and a question about Yeast Washing.

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Oct 22, 2010
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So I bottled my first brew, a Cream Stout kit from Midwest, this past Friday. Everything went better than expected. It was a little messy, but nothing too crazy.

The beer tasted great as it was before being bottled. Can't wait to try it when it is fully carbed. I'm having one only 5 days out of the bottle for "learning" purposes. Slightly carbed, a tiny bit of lacing, and a-lot of good flavor. I love it. :tank:

My question concerns how long I can leave my yeast in the carboy before I need to wash it. I racked and bottled this past Friday. I sanitized a piece of aluminum foil and put it over the top of the carboy and threw the carboy in the refrigerator. I won't be able to wash it until this coming Friday. Is there anything wrong with this? Possibility of the yeast going bad or other bacteria getting in?