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Review title: Short time for heat retention
Product review: Would heat leftover pasta to boiling (sank pasta in boiling water for a few minutes), preheated container for 10+ minutes with boiling water, and it would be lukewarm at best in 4-5 hours. When child leaves for school at 7:30 and lunch is at 11:30, that's not long enough! Soup heated to boiling wouldn't hold either, despite repeated attempts. Very discouraging.
