I use bowls frequently, never tried a Mason jar with cover. As long as the vacuum cover won't touch it i can't see it being an issue. The bowl that broke was barely touching the cover when closed, when the seal compressed the bowl did not...
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I use bowls frequently, never tried a Mason jar with cover. As long as the cover won't touch it i can't see it being an issue. The bowl that broke was barely touching the cover when closed, when the seal compressed the bowl did not...